FsPerf.cpp@ 78180

Last change on this file since 78180 was 78180, checked in by vboxsync, 6 years ago
FsPerf: Added '--relative-dir' option to work around PATH_MAX limitations on linux. bugref:9172
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1	/* $Id: FsPerf.cpp 78180 2019-04-17 19:13:51Z vboxsync $ */
2	/** @file
3	* FsPerf - File System (Shared Folders) Performance Benchmark.
4	*/
5
6	/*
7	* Copyright (C) 2019 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*
17	* The contents of this file may alternatively be used under the terms
18	* of the Common Development and Distribution License Version 1.0
19	* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
20	* VirtualBox OSE distribution, in which case the provisions of the
21	* CDDL are applicable instead of those of the GPL.
22	*
23	* You may elect to license modified versions of this file under the
24	* terms and conditions of either the GPL or the CDDL or both.
25	*/
26
27
28	/*********************************************************************************************************************************
29	* Header Files *
30	*********************************************************************************************************************************/
31	#ifdef RT_OS_OS2
32	# define INCL_BASE
33	# include <os2.h>
34	# undef RT_MAX
35	#endif
36	#include <iprt/alloca.h>
37	#include <iprt/asm.h>
38	#include <iprt/assert.h>
39	#include <iprt/err.h>
40	#include <iprt/dir.h>
41	#include <iprt/file.h>
42	#include <iprt/getopt.h>
43	#include <iprt/initterm.h>
44	#include <iprt/list.h>
45	#include <iprt/mem.h>
46	#include <iprt/message.h>
47	#include <iprt/param.h>
48	#include <iprt/path.h>
49	#ifdef RT_OS_LINUX
50	# include <iprt/pipe.h>
51	#endif
52	#include <iprt/process.h>
53	#include <iprt/rand.h>
54	#include <iprt/string.h>
55	#include <iprt/stream.h>
56	#include <iprt/system.h>
57	#include <iprt/tcp.h>
58	#include <iprt/test.h>
59	#include <iprt/time.h>
60	#include <iprt/thread.h>
61	#include <iprt/zero.h>
62
63	#ifdef RT_OS_WINDOWS
64	# include <iprt/nt/nt-and-windows.h>
65	#else
66	# include <errno.h>
67	# include <unistd.h>
68	# include <limits.h>
69	# include <sys/types.h>
70	# include <sys/fcntl.h>
71	# ifndef RT_OS_OS2
72	# include <sys/mman.h>
73	# include <sys/uio.h>
74	# endif
75	# include <sys/socket.h>
76	# include <signal.h>
77	# ifdef RT_OS_LINUX
78	# include <sys/sendfile.h>
79	# include <sys/syscall.h>
80	# endif
81	# ifdef RT_OS_DARWIN
82	# include <sys/uio.h>
83	# endif
84	#endif
85
86
87	/*********************************************************************************************************************************
88	* Defined Constants And Macros *
89	*********************************************************************************************************************************/
90	/** Used for cutting the the -d parameter value short and avoid a number of buffer overflow checks. */
91	#define FSPERF_MAX_NEEDED_PATH 224
92	/** The max path used by this code.
93	* It greatly exceeds the RTPATH_MAX so we can push the limits on windows. */
94	#define FSPERF_MAX_PATH (_32K)
95
96	/** @def FSPERF_TEST_SENDFILE
97	* Whether to enable the sendfile() tests. */
98	#if defined(RT_OS_LINUX) \|\| defined(RT_OS_DARWIN)
99	# define FSPERF_TEST_SENDFILE
100	#endif
101
102	/**
103	* Macro for profiling @a a_fnCall (typically forced inline) for about @a a_cNsTarget ns.
104	*
105	* Always does an even number of iterations.
106	*/
107	#define PROFILE_FN(a_fnCall, a_cNsTarget, a_szDesc) \
108	do { \
109	/* Estimate how many iterations we need to fill up the given timeslot: */ \
110	fsPerfYield(); \
111	uint64_t nsStart = RTTimeNanoTS(); \
112	uint64_t nsPrf; \
113	do \
114	nsPrf = RTTimeNanoTS(); \
115	while (nsPrf == nsStart); \
116	nsStart = nsPrf; \
117	\
118	uint64_t iIteration = 0; \
119	do \
120	{ \
121	RTTESTI_CHECK_RC(a_fnCall, VINF_SUCCESS); \
122	iIteration++; \
123	nsPrf = RTTimeNanoTS() - nsStart; \
124	} while (nsPrf < RT_NS_10MS \|\| (iIteration & 1)); \
125	nsPrf /= iIteration; \
126	if (nsPrf > g_nsPerNanoTSCall + 32) \
127	nsPrf -= g_nsPerNanoTSCall; \
128	\
129	uint64_t cIterations = (a_cNsTarget) / nsPrf; \
130	if (cIterations <= 1) \
131	cIterations = 2; \
132	else if (cIterations & 1) \
133	cIterations++; \
134	\
135	/* Do the actual profiling: */ \
136	fsPerfYield(); \
137	iIteration = 0; \
138	nsStart = RTTimeNanoTS(); \
139	for (; iIteration < cIterations; iIteration++) \
140	RTTESTI_CHECK_RC(a_fnCall, VINF_SUCCESS); \
141	nsPrf = RTTimeNanoTS() - nsStart; \
142	RTTestIValue(a_szDesc, nsPrf / cIterations, RTTESTUNIT_NS_PER_OCCURRENCE); \
143	if (g_fShowDuration) \
144	RTTestIValueF(nsPrf, RTTESTUNIT_NS, "%s duration", a_szDesc); \
145	if (g_fShowIterations) \
146	RTTestIValueF(iIteration, RTTESTUNIT_OCCURRENCES, "%s iterations", a_szDesc); \
147	} while (0)
148
149
150	/**
151	* Macro for profiling an operation on each file in the manytree directory tree.
152	*
153	* Always does an even number of tree iterations.
154	*/
155	#define PROFILE_MANYTREE_FN(a_szPath, a_fnCall, a_cEstimationIterations, a_cNsTarget, a_szDesc) \
156	do { \
157	if (!g_fManyFiles) \
158	break; \
159	\
160	/* Estimate how many iterations we need to fill up the given timeslot: */ \
161	fsPerfYield(); \
162	uint64_t nsStart = RTTimeNanoTS(); \
163	uint64_t ns; \
164	do \
165	ns = RTTimeNanoTS(); \
166	while (ns == nsStart); \
167	nsStart = ns; \
168	\
169	PFSPERFNAMEENTRY pCur; \
170	uint64_t iIteration = 0; \
171	do \
172	{ \
173	RTListForEach(&g_ManyTreeHead, pCur, FSPERFNAMEENTRY, Entry) \
174	{ \
175	memcpy(a_szPath, pCur->szName, pCur->cchName); \
176	for (uint32_t i = 0; i < g_cManyTreeFilesPerDir; i++) \
177	{ \
178	RTStrFormatU32(&a_szPath[pCur->cchName], sizeof(a_szPath) - pCur->cchName, i, 10, 5, 5, RTSTR_F_ZEROPAD); \
179	RTTESTI_CHECK_RC(a_fnCall, VINF_SUCCESS); \
180	} \
181	} \
182	iIteration++; \
183	ns = RTTimeNanoTS() - nsStart; \
184	} while (ns < RT_NS_10MS \|\| (iIteration & 1)); \
185	ns /= iIteration; \
186	if (ns > g_nsPerNanoTSCall + 32) \
187	ns -= g_nsPerNanoTSCall; \
188	\
189	uint32_t cIterations = (a_cNsTarget) / ns; \
190	if (cIterations <= 1) \
191	cIterations = 2; \
192	else if (cIterations & 1) \
193	cIterations++; \
194	\
195	/* Do the actual profiling: */ \
196	fsPerfYield(); \
197	uint32_t cCalls = 0; \
198	nsStart = RTTimeNanoTS(); \
199	for (iIteration = 0; iIteration < cIterations; iIteration++) \
200	{ \
201	RTListForEach(&g_ManyTreeHead, pCur, FSPERFNAMEENTRY, Entry) \
202	{ \
203	memcpy(a_szPath, pCur->szName, pCur->cchName); \
204	for (uint32_t i = 0; i < g_cManyTreeFilesPerDir; i++) \
205	{ \
206	RTStrFormatU32(&a_szPath[pCur->cchName], sizeof(a_szPath) - pCur->cchName, i, 10, 5, 5, RTSTR_F_ZEROPAD); \
207	RTTESTI_CHECK_RC(a_fnCall, VINF_SUCCESS); \
208	cCalls++; \
209	} \
210	} \
211	} \
212	ns = RTTimeNanoTS() - nsStart; \
213	RTTestIValueF(ns / cCalls, RTTESTUNIT_NS_PER_OCCURRENCE, a_szDesc); \
214	if (g_fShowDuration) \
215	RTTestIValueF(ns, RTTESTUNIT_NS, "%s duration", a_szDesc); \
216	if (g_fShowIterations) \
217	RTTestIValueF(iIteration, RTTESTUNIT_OCCURRENCES, "%s iterations", a_szDesc); \
218	} while (0)
219
220
221	/**
222	* Execute a_fnCall for each file in the manytree.
223	*/
224	#define DO_MANYTREE_FN(a_szPath, a_fnCall) \
225	do { \
226	PFSPERFNAMEENTRY pCur; \
227	RTListForEach(&g_ManyTreeHead, pCur, FSPERFNAMEENTRY, Entry) \
228	{ \
229	memcpy(a_szPath, pCur->szName, pCur->cchName); \
230	for (uint32_t i = 0; i < g_cManyTreeFilesPerDir; i++) \
231	{ \
232	RTStrFormatU32(&a_szPath[pCur->cchName], sizeof(a_szPath) - pCur->cchName, i, 10, 5, 5, RTSTR_F_ZEROPAD); \
233	a_fnCall; \
234	} \
235	} \
236	} while (0)
237
238
239	/** @def FSPERF_VERR_PATH_NOT_FOUND
240	* Hides the fact that we only get VERR_PATH_NOT_FOUND on non-unix systems. */
241	#if defined(RT_OS_WINDOWS) //\|\| defined(RT_OS_OS2) - using posix APIs IIRC, so lost in translation.
242	# define FSPERF_VERR_PATH_NOT_FOUND VERR_PATH_NOT_FOUND
243	#else
244	# define FSPERF_VERR_PATH_NOT_FOUND VERR_FILE_NOT_FOUND
245	#endif
246
247
248	/*********************************************************************************************************************************
249	* Structures and Typedefs *
250	*********************************************************************************************************************************/
251	typedef struct FSPERFNAMEENTRY
252	{
253	RTLISTNODE Entry;
254	uint16_t cchName;
255	char szName[RT_FLEXIBLE_ARRAY];
256	} FSPERFNAMEENTRY;
257	typedef FSPERFNAMEENTRY *PFSPERFNAMEENTRY;
258
259
260	enum
261	{
262	kCmdOpt_First = 128,
263
264	kCmdOpt_ManyFiles = kCmdOpt_First,
265	kCmdOpt_NoManyFiles,
266	kCmdOpt_Open,
267	kCmdOpt_NoOpen,
268	kCmdOpt_FStat,
269	kCmdOpt_NoFStat,
270	kCmdOpt_FChMod,
271	kCmdOpt_NoFChMod,
272	kCmdOpt_FUtimes,
273	kCmdOpt_NoFUtimes,
274	kCmdOpt_Stat,
275	kCmdOpt_NoStat,
276	kCmdOpt_ChMod,
277	kCmdOpt_NoChMod,
278	kCmdOpt_Utimes,
279	kCmdOpt_NoUtimes,
280	kCmdOpt_Rename,
281	kCmdOpt_NoRename,
282	kCmdOpt_DirOpen,
283	kCmdOpt_NoDirOpen,
284	kCmdOpt_DirEnum,
285	kCmdOpt_NoDirEnum,
286	kCmdOpt_MkRmDir,
287	kCmdOpt_NoMkRmDir,
288	kCmdOpt_StatVfs,
289	kCmdOpt_NoStatVfs,
290	kCmdOpt_Rm,
291	kCmdOpt_NoRm,
292	kCmdOpt_ChSize,
293	kCmdOpt_NoChSize,
294	kCmdOpt_ReadPerf,
295	kCmdOpt_NoReadPerf,
296	kCmdOpt_ReadTests,
297	kCmdOpt_NoReadTests,
298	#ifdef FSPERF_TEST_SENDFILE
299	kCmdOpt_SendFile,
300	kCmdOpt_NoSendFile,
301	#endif
302	#ifdef RT_OS_LINUX
303	kCmdOpt_Splice,
304	kCmdOpt_NoSplice,
305	#endif
306	kCmdOpt_WritePerf,
307	kCmdOpt_NoWritePerf,
308	kCmdOpt_WriteTests,
309	kCmdOpt_NoWriteTests,
310	kCmdOpt_Seek,
311	kCmdOpt_NoSeek,
312	kCmdOpt_FSync,
313	kCmdOpt_NoFSync,
314	kCmdOpt_MMap,
315	kCmdOpt_NoMMap,
316	kCmdOpt_IgnoreNoCache,
317	kCmdOpt_NoIgnoreNoCache,
318	kCmdOpt_IoFileSize,
319	kCmdOpt_SetBlockSize,
320	kCmdOpt_AddBlockSize,
321	kCmdOpt_Copy,
322	kCmdOpt_NoCopy,
323
324	kCmdOpt_ShowDuration,
325	kCmdOpt_NoShowDuration,
326	kCmdOpt_ShowIterations,
327	kCmdOpt_NoShowIterations,
328
329	kCmdOpt_ManyTreeFilesPerDir,
330	kCmdOpt_ManyTreeSubdirsPerDir,
331	kCmdOpt_ManyTreeDepth,
332
333	kCmdOpt_End
334	};
335
336
337	/*********************************************************************************************************************************
338	* Global Variables *
339	*********************************************************************************************************************************/
340	/** Command line parameters */
341	static const RTGETOPTDEF g_aCmdOptions[] =
342	{
343	{ "--dir", 'd', RTGETOPT_REQ_STRING },
344	{ "--relative-dir", 'r', RTGETOPT_REQ_NOTHING },
345	{ "--seconds", 's', RTGETOPT_REQ_UINT32 },
346	{ "--milliseconds", 'm', RTGETOPT_REQ_UINT64 },
347
348	{ "--enable-all", 'e', RTGETOPT_REQ_NOTHING },
349	{ "--disable-all", 'z', RTGETOPT_REQ_NOTHING },
350
351	{ "--many-files", kCmdOpt_ManyFiles, RTGETOPT_REQ_UINT32 },
352	{ "--no-many-files", kCmdOpt_NoManyFiles, RTGETOPT_REQ_NOTHING },
353	{ "--files-per-dir", kCmdOpt_ManyTreeFilesPerDir, RTGETOPT_REQ_UINT32 },
354	{ "--subdirs-per-dir", kCmdOpt_ManyTreeSubdirsPerDir, RTGETOPT_REQ_UINT32 },
355	{ "--tree-depth", kCmdOpt_ManyTreeDepth, RTGETOPT_REQ_UINT32 },
356
357	{ "--open", kCmdOpt_Open, RTGETOPT_REQ_NOTHING },
358	{ "--no-open", kCmdOpt_NoOpen, RTGETOPT_REQ_NOTHING },
359	{ "--fstat", kCmdOpt_FStat, RTGETOPT_REQ_NOTHING },
360	{ "--no-fstat", kCmdOpt_NoFStat, RTGETOPT_REQ_NOTHING },
361	{ "--fchmod", kCmdOpt_FChMod, RTGETOPT_REQ_NOTHING },
362	{ "--no-fchmod", kCmdOpt_NoFChMod, RTGETOPT_REQ_NOTHING },
363	{ "--futimes", kCmdOpt_FUtimes, RTGETOPT_REQ_NOTHING },
364	{ "--no-futimes", kCmdOpt_NoFUtimes, RTGETOPT_REQ_NOTHING },
365	{ "--stat", kCmdOpt_Stat, RTGETOPT_REQ_NOTHING },
366	{ "--no-stat", kCmdOpt_NoStat, RTGETOPT_REQ_NOTHING },
367	{ "--chmod", kCmdOpt_ChMod, RTGETOPT_REQ_NOTHING },
368	{ "--no-chmod", kCmdOpt_NoChMod, RTGETOPT_REQ_NOTHING },
369	{ "--utimes", kCmdOpt_Utimes, RTGETOPT_REQ_NOTHING },
370	{ "--no-utimes", kCmdOpt_NoUtimes, RTGETOPT_REQ_NOTHING },
371	{ "--rename", kCmdOpt_Rename, RTGETOPT_REQ_NOTHING },
372	{ "--no-rename", kCmdOpt_NoRename, RTGETOPT_REQ_NOTHING },
373	{ "--dir-open", kCmdOpt_DirOpen, RTGETOPT_REQ_NOTHING },
374	{ "--no-dir-open", kCmdOpt_NoDirOpen, RTGETOPT_REQ_NOTHING },
375	{ "--dir-enum", kCmdOpt_DirEnum, RTGETOPT_REQ_NOTHING },
376	{ "--no-dir-enum", kCmdOpt_NoDirEnum, RTGETOPT_REQ_NOTHING },
377	{ "--mk-rm-dir", kCmdOpt_MkRmDir, RTGETOPT_REQ_NOTHING },
378	{ "--no-mk-rm-dir", kCmdOpt_NoMkRmDir, RTGETOPT_REQ_NOTHING },
379	{ "--stat-vfs", kCmdOpt_StatVfs, RTGETOPT_REQ_NOTHING },
380	{ "--no-stat-vfs", kCmdOpt_NoStatVfs, RTGETOPT_REQ_NOTHING },
381	{ "--rm", kCmdOpt_Rm, RTGETOPT_REQ_NOTHING },
382	{ "--no-rm", kCmdOpt_NoRm, RTGETOPT_REQ_NOTHING },
383	{ "--chsize", kCmdOpt_ChSize, RTGETOPT_REQ_NOTHING },
384	{ "--no-chsize", kCmdOpt_NoChSize, RTGETOPT_REQ_NOTHING },
385	{ "--read-tests", kCmdOpt_ReadTests, RTGETOPT_REQ_NOTHING },
386	{ "--no-read-tests", kCmdOpt_NoReadTests, RTGETOPT_REQ_NOTHING },
387	{ "--read-perf", kCmdOpt_ReadPerf, RTGETOPT_REQ_NOTHING },
388	{ "--no-read-perf", kCmdOpt_NoReadPerf, RTGETOPT_REQ_NOTHING },
389	#ifdef FSPERF_TEST_SENDFILE
390	{ "--sendfile", kCmdOpt_SendFile, RTGETOPT_REQ_NOTHING },
391	{ "--no-sendfile", kCmdOpt_NoSendFile, RTGETOPT_REQ_NOTHING },
392	#endif
393	#ifdef RT_OS_LINUX
394	{ "--splice", kCmdOpt_Splice, RTGETOPT_REQ_NOTHING },
395	{ "--no-splice", kCmdOpt_NoSplice, RTGETOPT_REQ_NOTHING },
396	#endif
397	{ "--write-tests", kCmdOpt_WriteTests, RTGETOPT_REQ_NOTHING },
398	{ "--no-write-tests", kCmdOpt_NoWriteTests, RTGETOPT_REQ_NOTHING },
399	{ "--write-perf", kCmdOpt_WritePerf, RTGETOPT_REQ_NOTHING },
400	{ "--no-write-perf", kCmdOpt_NoWritePerf, RTGETOPT_REQ_NOTHING },
401	{ "--seek", kCmdOpt_Seek, RTGETOPT_REQ_NOTHING },
402	{ "--no-seek", kCmdOpt_NoSeek, RTGETOPT_REQ_NOTHING },
403	{ "--fsync", kCmdOpt_FSync, RTGETOPT_REQ_NOTHING },
404	{ "--no-fsync", kCmdOpt_NoFSync, RTGETOPT_REQ_NOTHING },
405	{ "--mmap", kCmdOpt_MMap, RTGETOPT_REQ_NOTHING },
406	{ "--no-mmap", kCmdOpt_NoMMap, RTGETOPT_REQ_NOTHING },
407	{ "--ignore-no-cache", kCmdOpt_IgnoreNoCache, RTGETOPT_REQ_NOTHING },
408	{ "--no-ignore-no-cache", kCmdOpt_NoIgnoreNoCache, RTGETOPT_REQ_NOTHING },
409	{ "--io-file-size", kCmdOpt_IoFileSize, RTGETOPT_REQ_UINT64 },
410	{ "--set-block-size", kCmdOpt_SetBlockSize, RTGETOPT_REQ_UINT32 },
411	{ "--add-block-size", kCmdOpt_AddBlockSize, RTGETOPT_REQ_UINT32 },
412	{ "--copy", kCmdOpt_Copy, RTGETOPT_REQ_NOTHING },
413	{ "--no-copy", kCmdOpt_NoCopy, RTGETOPT_REQ_NOTHING },
414
415	{ "--show-duration", kCmdOpt_ShowDuration, RTGETOPT_REQ_NOTHING },
416	{ "--no-show-duration", kCmdOpt_NoShowDuration, RTGETOPT_REQ_NOTHING },
417	{ "--show-iterations", kCmdOpt_ShowIterations, RTGETOPT_REQ_NOTHING },
418	{ "--no-show-iterations", kCmdOpt_NoShowIterations, RTGETOPT_REQ_NOTHING },
419
420	{ "--quiet", 'q', RTGETOPT_REQ_NOTHING },
421	{ "--verbose", 'v', RTGETOPT_REQ_NOTHING },
422	{ "--version", 'V', RTGETOPT_REQ_NOTHING },
423	{ "--help", 'h', RTGETOPT_REQ_NOTHING } /* for Usage() */
424	};
425
426	/** The test handle. */
427	static RTTEST g_hTest;
428	/** The number of nanoseconds a RTTimeNanoTS call takes.
429	* This is used for adjusting loop count estimates. */
430	static uint64_t g_nsPerNanoTSCall = 1;
431	/** Whether or not to display the duration of each profile run.
432	* This is chiefly for verify the estimate phase. */
433	static bool g_fShowDuration = false;
434	/** Whether or not to display the iteration count for each profile run.
435	* This is chiefly for verify the estimate phase. */
436	static bool g_fShowIterations = false;
437	/** Verbosity level. */
438	static uint32_t g_uVerbosity = 0;
439
440	/** @name Selected subtest
441	* @{ */
442	static bool g_fManyFiles = true;
443	static bool g_fOpen = true;
444	static bool g_fFStat = true;
445	static bool g_fFChMod = true;
446	static bool g_fFUtimes = true;
447	static bool g_fStat = true;
448	static bool g_fChMod = true;
449	static bool g_fUtimes = true;
450	static bool g_fRename = true;
451	static bool g_fDirOpen = true;
452	static bool g_fDirEnum = true;
453	static bool g_fMkRmDir = true;
454	static bool g_fStatVfs = true;
455	static bool g_fRm = true;
456	static bool g_fChSize = true;
457	static bool g_fReadTests = true;
458	static bool g_fReadPerf = true;
459	#ifdef FSPERF_TEST_SENDFILE
460	static bool g_fSendFile = true;
461	#endif
462	#ifdef RT_OS_LINUX
463	static bool g_fSplice = true;
464	#endif
465	static bool g_fWriteTests= true;
466	static bool g_fWritePerf = true;
467	static bool g_fSeek = true;
468	static bool g_fFSync = true;
469	static bool g_fMMap = true;
470	static bool g_fCopy = true;
471	/** @} */
472
473	/** The length of each test run. */
474	static uint64_t g_nsTestRun = RT_NS_1SEC_64 * 10;
475
476	/** For the 'manyfiles' subdir. */
477	static uint32_t g_cManyFiles = 10000;
478
479	/** Number of files in the 'manytree' directory tree. */
480	static uint32_t g_cManyTreeFiles = 640 + 16640 /10880*/;
481	/** Number of files per directory in the 'manytree' construct. */
482	static uint32_t g_cManyTreeFilesPerDir = 640;
483	/** Number of subdirs per directory in the 'manytree' construct. */
484	static uint32_t g_cManyTreeSubdirsPerDir = 16;
485	/** The depth of the 'manytree' directory tree. */
486	static uint32_t g_cManyTreeDepth = 1;
487	/** List of directories in the many tree, creation order. */
488	static RTLISTANCHOR g_ManyTreeHead;
489
490	/** Number of configured I/O block sizes. */
491	static uint32_t g_cIoBlocks = 8;
492	/** Configured I/O block sizes. */
493	static uint32_t g_acbIoBlocks[16] = { 1, 512, 4096, 16384, 65536, _1M, _32M, _128M };
494	/** The desired size of the test file we use for I/O. */
495	static uint64_t g_cbIoFile = _512M;
496	/** Whether to be less strict with non-cache file handle. */
497	static bool g_fIgnoreNoCache = false;
498
499	/** Set if g_szDir and friends are path relative to CWD rather than absolute. */
500	static bool g_fRelativeDir = false;
501	/** The length of g_szDir. */
502	static size_t g_cchDir;
503	/** The length of g_szEmptyDir. */
504	static size_t g_cchEmptyDir;
505	/** The length of g_szDeepDir. */
506	static size_t g_cchDeepDir;
507
508	/** The test directory (absolute). This will always have a trailing slash. */
509	static char g_szDir[FSPERF_MAX_PATH];
510	/** The test directory (absolute), 2nd copy for use with InDir2(). */
511	static char g_szDir2[FSPERF_MAX_PATH];
512	/** The empty test directory (absolute). This will always have a trailing slash. */
513	static char g_szEmptyDir[FSPERF_MAX_PATH];
514	/** The deep test directory (absolute). This will always have a trailing slash. */
515	static char g_szDeepDir[FSPERF_MAX_PATH + _1K];
516
517
518	/**
519	* Yield the CPU and stuff before starting a test run.
520	*/
521	DECLINLINE(void) fsPerfYield(void)
522	{
523	RTThreadYield();
524	RTThreadYield();
525	}
526
527
528	/**
529	* Profiles the RTTimeNanoTS call, setting g_nsPerNanoTSCall.
530	*/
531	static void fsPerfNanoTS(void)
532	{
533	fsPerfYield();
534
535	/* Make sure we start off on a changing timestamp on platforms will low time resoultion. */
536	uint64_t nsStart = RTTimeNanoTS();
537	uint64_t ns;
538	do
539	ns = RTTimeNanoTS();
540	while (ns == nsStart);
541	nsStart = ns;
542
543	/* Call it for 10 ms. */
544	uint32_t i = 0;
545	do
546	{
547	i++;
548	ns = RTTimeNanoTS();
549	}
550	while (ns - nsStart < RT_NS_10MS);
551
552	g_nsPerNanoTSCall = (ns - nsStart) / i;
553	}
554
555
556	/**
557	* Construct a path relative to the base test directory.
558	*
559	* @returns g_szDir.
560	* @param pszAppend What to append.
561	* @param cchAppend How much to append.
562	*/
563	DECLINLINE(char ) InDir(const char pszAppend, size_t cchAppend)
564	{
565	Assert(g_szDir[g_cchDir - 1] == RTPATH_SLASH);
566	memcpy(&g_szDir[g_cchDir], pszAppend, cchAppend);
567	g_szDir[g_cchDir + cchAppend] = '\0';
568	return &g_szDir[0];
569	}
570
571
572	/**
573	* Construct a path relative to the base test directory, 2nd copy.
574	*
575	* @returns g_szDir2.
576	* @param pszAppend What to append.
577	* @param cchAppend How much to append.
578	*/
579	DECLINLINE(char ) InDir2(const char pszAppend, size_t cchAppend)
580	{
581	Assert(g_szDir[g_cchDir - 1] == RTPATH_SLASH);
582	memcpy(g_szDir2, g_szDir, g_cchDir);
583	memcpy(&g_szDir2[g_cchDir], pszAppend, cchAppend);
584	g_szDir2[g_cchDir + cchAppend] = '\0';
585	return &g_szDir2[0];
586	}
587
588
589	/**
590	* Construct a path relative to the empty directory.
591	*
592	* @returns g_szEmptyDir.
593	* @param pszAppend What to append.
594	* @param cchAppend How much to append.
595	*/
596	DECLINLINE(char ) InEmptyDir(const char pszAppend, size_t cchAppend)
597	{
598	Assert(g_szEmptyDir[g_cchEmptyDir - 1] == RTPATH_SLASH);
599	memcpy(&g_szEmptyDir[g_cchEmptyDir], pszAppend, cchAppend);
600	g_szEmptyDir[g_cchEmptyDir + cchAppend] = '\0';
601	return &g_szEmptyDir[0];
602	}
603
604
605	/**
606	* Construct a path relative to the deep test directory.
607	*
608	* @returns g_szDeepDir.
609	* @param pszAppend What to append.
610	* @param cchAppend How much to append.
611	*/
612	DECLINLINE(char ) InDeepDir(const char pszAppend, size_t cchAppend)
613	{
614	Assert(g_szDeepDir[g_cchDeepDir - 1] == RTPATH_SLASH);
615	memcpy(&g_szDeepDir[g_cchDeepDir], pszAppend, cchAppend);
616	g_szDeepDir[g_cchDeepDir + cchAppend] = '\0';
617	return &g_szDeepDir[0];
618	}
619
620
621	/**
622	* Prepares the test area.
623	* @returns VBox status code.
624	*/
625	static int fsPrepTestArea(void)
626	{
627	/* The empty subdir and associated globals: */
628	static char s_szEmpty[] = "empty";
629	memcpy(g_szEmptyDir, g_szDir, g_cchDir);
630	memcpy(&g_szEmptyDir[g_cchDir], s_szEmpty, sizeof(s_szEmpty));
631	g_cchEmptyDir = g_cchDir + sizeof(s_szEmpty) - 1;
632	RTTESTI_CHECK_RC_RET(RTDirCreate(g_szEmptyDir, 0755, 0), VINF_SUCCESS, rcCheck);
633	g_szEmptyDir[g_cchEmptyDir++] = RTPATH_SLASH;
634	g_szEmptyDir[g_cchEmptyDir] = '\0';
635	RTTestIPrintf(RTTESTLVL_ALWAYS, "Empty dir: %s\n", g_szEmptyDir);
636
637	/* Deep directory: */
638	memcpy(g_szDeepDir, g_szDir, g_cchDir);
639	g_cchDeepDir = g_cchDir;
640	do
641	{
642	static char const s_szSub[] = "d" RTPATH_SLASH_STR;
643	memcpy(&g_szDeepDir[g_cchDeepDir], s_szSub, sizeof(s_szSub));
644	g_cchDeepDir += sizeof(s_szSub) - 1;
645	RTTESTI_CHECK_RC_RET( RTDirCreate(g_szDeepDir, 0755, 0), VINF_SUCCESS, rcCheck);
646	} while (g_cchDeepDir < 176);
647	RTTestIPrintf(RTTESTLVL_ALWAYS, "Deep dir: %s\n", g_szDeepDir);
648
649	/* Create known file in both deep and shallow dirs: */
650	RTFILE hKnownFile;
651	RTTESTI_CHECK_RC_RET(RTFileOpen(&hKnownFile, InDir(RT_STR_TUPLE("known-file")),
652	RTFILE_O_CREATE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE),
653	VINF_SUCCESS, rcCheck);
654	RTTESTI_CHECK_RC_RET(RTFileClose(hKnownFile), VINF_SUCCESS, rcCheck);
655
656	RTTESTI_CHECK_RC_RET(RTFileOpen(&hKnownFile, InDeepDir(RT_STR_TUPLE("known-file")),
657	RTFILE_O_CREATE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE),
658	VINF_SUCCESS, rcCheck);
659	RTTESTI_CHECK_RC_RET(RTFileClose(hKnownFile), VINF_SUCCESS, rcCheck);
660
661	return VINF_SUCCESS;
662	}
663
664
665	/**
666	* Create a name list entry.
667	* @returns Pointer to the entry, NULL if out of memory.
668	* @param pchName The name.
669	* @param cchName The name length.
670	*/
671	PFSPERFNAMEENTRY fsPerfCreateNameEntry(const char *pchName, size_t cchName)
672	{
673	PFSPERFNAMEENTRY pEntry = (PFSPERFNAMEENTRY)RTMemAllocVar(RT_UOFFSETOF_DYN(FSPERFNAMEENTRY, szName[cchName + 1]));
674	if (pEntry)
675	{
676	RTListInit(&pEntry->Entry);
677	pEntry->cchName = (uint16_t)cchName;
678	memcpy(pEntry->szName, pchName, cchName);
679	pEntry->szName[cchName] = '\0';
680	}
681	return pEntry;
682	}
683
684
685	static int fsPerfManyTreeRecursiveDirCreator(size_t cchDir, uint32_t iDepth)
686	{
687	PFSPERFNAMEENTRY pEntry = fsPerfCreateNameEntry(g_szDir, cchDir);
688	RTTESTI_CHECK_RET(pEntry, VERR_NO_MEMORY);
689	RTListAppend(&g_ManyTreeHead, &pEntry->Entry);
690
691	RTTESTI_CHECK_RC_RET(RTDirCreate(g_szDir, 0755, RTDIRCREATE_FLAGS_NOT_CONTENT_INDEXED_DONT_SET \| RTDIRCREATE_FLAGS_NOT_CONTENT_INDEXED_NOT_CRITICAL),
692	VINF_SUCCESS, rcCheck);
693
694	if (iDepth < g_cManyTreeDepth)
695	for (uint32_t i = 0; i < g_cManyTreeSubdirsPerDir; i++)
696	{
697	size_t cchSubDir = RTStrPrintf(&g_szDir[cchDir], sizeof(g_szDir) - cchDir, "d%02u" RTPATH_SLASH_STR, i);
698	RTTESTI_CHECK_RC_RET(fsPerfManyTreeRecursiveDirCreator(cchDir + cchSubDir, iDepth + 1), VINF_SUCCESS, rcCheck);
699	}
700
701	return VINF_SUCCESS;
702	}
703
704
705	void fsPerfManyFiles(void)
706	{
707	RTTestISub("manyfiles");
708
709	/*
710	* Create a sub-directory with like 10000 files in it.
711	*
712	* This does push the directory organization of the underlying file system,
713	* which is something we might not want to profile with shared folders. It
714	* is however useful for directory enumeration.
715	*/
716	RTTESTI_CHECK_RC_RETV(RTDirCreate(InDir(RT_STR_TUPLE("manyfiles")), 0755,
717	RTDIRCREATE_FLAGS_NOT_CONTENT_INDEXED_DONT_SET \| RTDIRCREATE_FLAGS_NOT_CONTENT_INDEXED_NOT_CRITICAL),
718	VINF_SUCCESS);
719
720	size_t offFilename = strlen(g_szDir);
721	g_szDir[offFilename++] = RTPATH_SLASH;
722
723	fsPerfYield();
724	RTFILE hFile;
725	uint64_t const nsStart = RTTimeNanoTS();
726	for (uint32_t i = 0; i < g_cManyFiles; i++)
727	{
728	RTStrFormatU32(&g_szDir[offFilename], sizeof(g_szDir) - offFilename, i, 10, 5, 5, RTSTR_F_ZEROPAD);
729	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFile, g_szDir, RTFILE_O_CREATE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
730	RTTESTI_CHECK_RC(RTFileClose(hFile), VINF_SUCCESS);
731	}
732	uint64_t const cNsElapsed = RTTimeNanoTS() - nsStart;
733	RTTestIValueF(cNsElapsed, RTTESTUNIT_NS, "Creating %u empty files in single directory", g_cManyFiles);
734	RTTestIValueF(cNsElapsed / g_cManyFiles, RTTESTUNIT_NS_PER_OCCURRENCE, "Create empty file (single dir)");
735
736	/*
737	* Create a bunch of directories with exacly 32 files in each, hoping to
738	* avoid any directory organization artifacts.
739	*/
740	/* Create the directories first, building a list of them for simplifying iteration: */
741	RTListInit(&g_ManyTreeHead);
742	InDir(RT_STR_TUPLE("manytree" RTPATH_SLASH_STR));
743	RTTESTI_CHECK_RC_RETV(fsPerfManyTreeRecursiveDirCreator(strlen(g_szDir), 0), VINF_SUCCESS);
744
745	/* Create the zero byte files: */
746	fsPerfYield();
747	uint64_t const nsStart2 = RTTimeNanoTS();
748	uint32_t cFiles = 0;
749	PFSPERFNAMEENTRY pCur;
750	RTListForEach(&g_ManyTreeHead, pCur, FSPERFNAMEENTRY, Entry)
751	{
752	char szPath[FSPERF_MAX_PATH];
753	memcpy(szPath, pCur->szName, pCur->cchName);
754	for (uint32_t i = 0; i < g_cManyTreeFilesPerDir; i++)
755	{
756	RTStrFormatU32(&szPath[pCur->cchName], sizeof(szPath) - pCur->cchName, i, 10, 5, 5, RTSTR_F_ZEROPAD);
757	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFile, szPath, RTFILE_O_CREATE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
758	RTTESTI_CHECK_RC(RTFileClose(hFile), VINF_SUCCESS);
759	cFiles++;
760	}
761	}
762	uint64_t const cNsElapsed2 = RTTimeNanoTS() - nsStart2;
763	RTTestIValueF(cNsElapsed2, RTTESTUNIT_NS, "Creating %u empty files in tree", cFiles);
764	RTTestIValueF(cNsElapsed2 / cFiles, RTTESTUNIT_NS_PER_OCCURRENCE, "Create empty file (tree)");
765	RTTESTI_CHECK(g_cManyTreeFiles == cFiles);
766	}
767
768
769	DECL_FORCE_INLINE(int) fsPerfOpenExistingOnceReadonly(const char *pszFile)
770	{
771	RTFILE hFile;
772	RTTESTI_CHECK_RC_RET(RTFileOpen(&hFile, pszFile, RTFILE_O_OPEN \| RTFILE_O_DENY_NONE \| RTFILE_O_READ), VINF_SUCCESS, rcCheck);
773	RTTESTI_CHECK_RC(RTFileClose(hFile), VINF_SUCCESS);
774	return VINF_SUCCESS;
775	}
776
777
778	DECL_FORCE_INLINE(int) fsPerfOpenExistingOnceWriteonly(const char *pszFile)
779	{
780	RTFILE hFile;
781	RTTESTI_CHECK_RC_RET(RTFileOpen(&hFile, pszFile, RTFILE_O_OPEN \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS, rcCheck);
782	RTTESTI_CHECK_RC(RTFileClose(hFile), VINF_SUCCESS);
783	return VINF_SUCCESS;
784	}
785
786
787	/** @note tstRTFileOpenEx-1.cpp has a copy of this code. */
788	static void tstOpenExTest(unsigned uLine, int cbExist, int cbNext, const char *pszFilename, uint64_t fAction,
789	int rcExpect, RTFILEACTION enmActionExpected)
790	{
791	uint64_t const fCreateMode = (0644 << RTFILE_O_CREATE_MODE_SHIFT);
792	RTFILE hFile;
793	int rc;
794
795	/*
796	* File existence and size.
797	*/
798	bool fOkay = false;
799	RTFSOBJINFO ObjInfo;
800	rc = RTPathQueryInfoEx(pszFilename, &ObjInfo, RTFSOBJATTRADD_NOTHING, RTPATH_F_ON_LINK);
801	if (RT_SUCCESS(rc))
802	fOkay = cbExist == (int64_t)ObjInfo.cbObject;
803	else
804	fOkay = rc == VERR_FILE_NOT_FOUND && cbExist < 0;
805	if (!fOkay)
806	{
807	if (cbExist >= 0)
808	{
809	rc = RTFileOpen(&hFile, pszFilename, RTFILE_O_WRITE \| RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| fCreateMode);
810	if (RT_SUCCESS(rc))
811	{
812	while (cbExist > 0)
813	{
814	int cbToWrite = (int)strlen(pszFilename);
815	if (cbToWrite > cbExist)
816	cbToWrite = cbExist;
817	rc = RTFileWrite(hFile, pszFilename, cbToWrite, NULL);
818	if (RT_FAILURE(rc))
819	{
820	RTTestIFailed("%u: RTFileWrite(%s,%#x) -> %Rrc\n", uLine, pszFilename, cbToWrite, rc);
821	break;
822	}
823	cbExist -= cbToWrite;
824	}
825
826	RTTESTI_CHECK_RC(RTFileClose(hFile), VINF_SUCCESS);
827	}
828	else
829	RTTestIFailed("%u: RTFileDelete(%s) -> %Rrc\n", uLine, pszFilename, rc);
830
831	}
832	else
833	{
834	rc = RTFileDelete(pszFilename);
835	if (rc != VINF_SUCCESS && rc != VERR_FILE_NOT_FOUND)
836	RTTestIFailed("%u: RTFileDelete(%s) -> %Rrc\n", uLine, pszFilename, rc);
837	}
838	}
839
840	/*
841	* The actual test.
842	*/
843	RTFILEACTION enmActuallyTaken = RTFILEACTION_END;
844	hFile = NIL_RTFILE;
845	rc = RTFileOpenEx(pszFilename, fAction \| RTFILE_O_READWRITE \| RTFILE_O_DENY_NONE \| fCreateMode, &hFile, &enmActuallyTaken);
846	if ( rc != rcExpect
847	\|\| enmActuallyTaken != enmActionExpected
848	\|\| (RT_SUCCESS(rc) ? hFile == NIL_RTFILE : hFile != NIL_RTFILE))
849	RTTestIFailed("%u: RTFileOpenEx(%s, %#llx) -> %Rrc + %d (hFile=%p), expected %Rrc + %d\n",
850	uLine, pszFilename, fAction, rc, enmActuallyTaken, hFile, rcExpect, enmActionExpected);
851	if (RT_SUCCESS(rc))
852	{
853	if ( enmActionExpected == RTFILEACTION_REPLACED
854	\|\| enmActionExpected == RTFILEACTION_TRUNCATED)
855	{
856	uint8_t abBuf[16];
857	rc = RTFileRead(hFile, abBuf, 1, NULL);
858	if (rc != VERR_EOF)
859	RTTestIFailed("%u: RTFileRead(%s,,1,) -> %Rrc, expected VERR_EOF\n", uLine, pszFilename, rc);
860	}
861
862	while (cbNext > 0)
863	{
864	int cbToWrite = (int)strlen(pszFilename);
865	if (cbToWrite > cbNext)
866	cbToWrite = cbNext;
867	rc = RTFileWrite(hFile, pszFilename, cbToWrite, NULL);
868	if (RT_FAILURE(rc))
869	{
870	RTTestIFailed("%u: RTFileWrite(%s,%#x) -> %Rrc\n", uLine, pszFilename, cbToWrite, rc);
871	break;
872	}
873	cbNext -= cbToWrite;
874	}
875
876	rc = RTFileClose(hFile);
877	if (RT_FAILURE(rc))
878	RTTestIFailed("%u: RTFileClose(%p) -> %Rrc\n", uLine, hFile, rc);
879	}
880	}
881
882
883	void fsPerfOpen(void)
884	{
885	RTTestISub("open");
886
887	/* Opening non-existing files. */
888	RTFILE hFile;
889	RTTESTI_CHECK_RC(RTFileOpen(&hFile, InEmptyDir(RT_STR_TUPLE("no-such-file")),
890	RTFILE_O_OPEN \| RTFILE_O_DENY_NONE \| RTFILE_O_READ), VERR_FILE_NOT_FOUND);
891	RTTESTI_CHECK_RC(RTFileOpen(&hFile, InEmptyDir(RT_STR_TUPLE("no-such-dir" RTPATH_SLASH_STR "no-such-file")),
892	RTFILE_O_OPEN \| RTFILE_O_DENY_NONE \| RTFILE_O_READ), FSPERF_VERR_PATH_NOT_FOUND);
893	RTTESTI_CHECK_RC(RTFileOpen(&hFile, InDir(RT_STR_TUPLE("known-file" RTPATH_SLASH_STR "no-such-file")),
894	RTFILE_O_OPEN \| RTFILE_O_DENY_NONE \| RTFILE_O_READ), VERR_PATH_NOT_FOUND);
895
896	/*
897	* The following is copied from tstRTFileOpenEx-1.cpp:
898	*/
899	InDir(RT_STR_TUPLE("file1"));
900	tstOpenExTest(__LINE__, -1, -1, g_szDir, RTFILE_O_OPEN, VERR_FILE_NOT_FOUND, RTFILEACTION_INVALID);
901	tstOpenExTest(__LINE__, -1, -1, g_szDir, RTFILE_O_OPEN_CREATE, VINF_SUCCESS, RTFILEACTION_CREATED);
902	tstOpenExTest(__LINE__, 0, 0, g_szDir, RTFILE_O_OPEN_CREATE, VINF_SUCCESS, RTFILEACTION_OPENED);
903	tstOpenExTest(__LINE__, 0, 0, g_szDir, RTFILE_O_OPEN, VINF_SUCCESS, RTFILEACTION_OPENED);
904
905	tstOpenExTest(__LINE__, 0, 0, g_szDir, RTFILE_O_OPEN \| RTFILE_O_TRUNCATE, VINF_SUCCESS, RTFILEACTION_TRUNCATED);
906	tstOpenExTest(__LINE__, 0, 10, g_szDir, RTFILE_O_OPEN_CREATE \| RTFILE_O_TRUNCATE, VINF_SUCCESS, RTFILEACTION_TRUNCATED);
907	tstOpenExTest(__LINE__, 10, 10, g_szDir, RTFILE_O_OPEN_CREATE \| RTFILE_O_TRUNCATE, VINF_SUCCESS, RTFILEACTION_TRUNCATED);
908	tstOpenExTest(__LINE__, 10, -1, g_szDir, RTFILE_O_OPEN \| RTFILE_O_TRUNCATE, VINF_SUCCESS, RTFILEACTION_TRUNCATED);
909	tstOpenExTest(__LINE__, -1, -1, g_szDir, RTFILE_O_OPEN \| RTFILE_O_TRUNCATE, VERR_FILE_NOT_FOUND, RTFILEACTION_INVALID);
910	tstOpenExTest(__LINE__, -1, 0, g_szDir, RTFILE_O_OPEN_CREATE \| RTFILE_O_TRUNCATE, VINF_SUCCESS, RTFILEACTION_CREATED);
911
912	tstOpenExTest(__LINE__, 0, -1, g_szDir, RTFILE_O_CREATE_REPLACE, VINF_SUCCESS, RTFILEACTION_REPLACED);
913	tstOpenExTest(__LINE__, -1, 0, g_szDir, RTFILE_O_CREATE_REPLACE, VINF_SUCCESS, RTFILEACTION_CREATED);
914	tstOpenExTest(__LINE__, 0, -1, g_szDir, RTFILE_O_CREATE, VERR_ALREADY_EXISTS, RTFILEACTION_ALREADY_EXISTS);
915	tstOpenExTest(__LINE__, -1, -1, g_szDir, RTFILE_O_CREATE, VINF_SUCCESS, RTFILEACTION_CREATED);
916
917	tstOpenExTest(__LINE__, -1, 10, g_szDir, RTFILE_O_CREATE \| RTFILE_O_TRUNCATE, VINF_SUCCESS, RTFILEACTION_CREATED);
918	tstOpenExTest(__LINE__, 10, 10, g_szDir, RTFILE_O_CREATE \| RTFILE_O_TRUNCATE, VERR_ALREADY_EXISTS, RTFILEACTION_ALREADY_EXISTS);
919	tstOpenExTest(__LINE__, 10, -1, g_szDir, RTFILE_O_CREATE_REPLACE \| RTFILE_O_TRUNCATE, VINF_SUCCESS, RTFILEACTION_REPLACED);
920	tstOpenExTest(__LINE__, -1, -1, g_szDir, RTFILE_O_CREATE_REPLACE \| RTFILE_O_TRUNCATE, VINF_SUCCESS, RTFILEACTION_CREATED);
921
922	RTTESTI_CHECK_RC(RTFileDelete(g_szDir), VINF_SUCCESS);
923
924	/*
925	* Create file1 and then try exclusivly creating it again.
926	* Then profile opening it for reading.
927	*/
928	RTFILE hFile1;
929	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFile1, InDir(RT_STR_TUPLE("file1")),
930	RTFILE_O_CREATE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
931	RTTESTI_CHECK_RC(RTFileOpen(&hFile, g_szDir, RTFILE_O_CREATE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VERR_ALREADY_EXISTS);
932	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
933
934	PROFILE_FN(fsPerfOpenExistingOnceReadonly(g_szDir), g_nsTestRun, "RTFileOpen/Close/Readonly");
935	PROFILE_FN(fsPerfOpenExistingOnceWriteonly(g_szDir), g_nsTestRun, "RTFileOpen/Close/Writeonly");
936
937	/*
938	* Profile opening in the deep directory too.
939	*/
940	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFile1, InDeepDir(RT_STR_TUPLE("file1")),
941	RTFILE_O_CREATE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
942	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
943	PROFILE_FN(fsPerfOpenExistingOnceReadonly(g_szDeepDir), g_nsTestRun, "RTFileOpen/Close/deep/readonly");
944	PROFILE_FN(fsPerfOpenExistingOnceWriteonly(g_szDeepDir), g_nsTestRun, "RTFileOpen/Close/deep/writeonly");
945
946	/* Manytree: */
947	char szPath[FSPERF_MAX_PATH];
948	PROFILE_MANYTREE_FN(szPath, fsPerfOpenExistingOnceReadonly(szPath), 1, g_nsTestRun, "RTFileOpen/Close/manytree/readonly");
949	}
950
951
952	void fsPerfFStat(void)
953	{
954	RTTestISub("fstat");
955	RTFILE hFile1;
956	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFile1, InDir(RT_STR_TUPLE("file2")),
957	RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
958	RTFSOBJINFO ObjInfo = {0};
959	PROFILE_FN(RTFileQueryInfo(hFile1, &ObjInfo, RTFSOBJATTRADD_NOTHING), g_nsTestRun, "RTFileQueryInfo/NOTHING");
960	PROFILE_FN(RTFileQueryInfo(hFile1, &ObjInfo, RTFSOBJATTRADD_UNIX), g_nsTestRun, "RTFileQueryInfo/UNIX");
961
962	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
963	}
964
965
966	void fsPerfFChMod(void)
967	{
968	RTTestISub("fchmod");
969	RTFILE hFile1;
970	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFile1, InDir(RT_STR_TUPLE("file4")),
971	RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
972	RTFSOBJINFO ObjInfo = {0};
973	RTTESTI_CHECK_RC(RTFileQueryInfo(hFile1, &ObjInfo, RTFSOBJATTRADD_NOTHING), VINF_SUCCESS);
974	RTFMODE const fEvenMode = (ObjInfo.Attr.fMode & ~RTFS_UNIX_ALL_ACCESS_PERMS) \| RTFS_DOS_READONLY \| 0400;
975	RTFMODE const fOddMode = (ObjInfo.Attr.fMode & ~(RTFS_UNIX_ALL_ACCESS_PERMS \| RTFS_DOS_READONLY)) \| 0640;
976	PROFILE_FN(RTFileSetMode(hFile1, iIteration & 1 ? fOddMode : fEvenMode), g_nsTestRun, "RTFileSetMode");
977
978	RTFileSetMode(hFile1, ObjInfo.Attr.fMode);
979	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
980	}
981
982
983	void fsPerfFUtimes(void)
984	{
985	RTTestISub("futimes");
986	RTFILE hFile1;
987	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFile1, InDir(RT_STR_TUPLE("file5")),
988	RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
989	RTTIMESPEC Time1;
990	RTTimeNow(&Time1);
991	RTTIMESPEC Time2 = Time1;
992	RTTimeSpecSubSeconds(&Time2, 3636);
993
994	RTFSOBJINFO ObjInfo0 = {0};
995	RTTESTI_CHECK_RC(RTFileQueryInfo(hFile1, &ObjInfo0, RTFSOBJATTRADD_NOTHING), VINF_SUCCESS);
996
997	/* Modify modification time: */
998	RTTESTI_CHECK_RC(RTFileSetTimes(hFile1, NULL, &Time2, NULL, NULL), VINF_SUCCESS);
999	RTFSOBJINFO ObjInfo1 = {0};
1000	RTTESTI_CHECK_RC(RTFileQueryInfo(hFile1, &ObjInfo1, RTFSOBJATTRADD_NOTHING), VINF_SUCCESS);
1001	RTTESTI_CHECK((RTTimeSpecGetSeconds(&ObjInfo1.ModificationTime) >> 2) == (RTTimeSpecGetSeconds(&Time2) >> 2));
1002	char sz1[RTTIME_STR_LEN], sz2[RTTIME_STR_LEN]; /* Div by 1000 here for posix impl. using timeval. */
1003	RTTESTI_CHECK_MSG(RTTimeSpecGetNano(&ObjInfo1.AccessTime) / 1000 == RTTimeSpecGetNano(&ObjInfo0.AccessTime) / 1000,
1004	("%s, expected %s", RTTimeSpecToString(&ObjInfo1.AccessTime, sz1, sizeof(sz1)),
1005	RTTimeSpecToString(&ObjInfo0.AccessTime, sz2, sizeof(sz2))));
1006
1007	/* Modify access time: */
1008	RTTESTI_CHECK_RC(RTFileSetTimes(hFile1, &Time1, NULL, NULL, NULL), VINF_SUCCESS);
1009	RTFSOBJINFO ObjInfo2 = {0};
1010	RTTESTI_CHECK_RC(RTFileQueryInfo(hFile1, &ObjInfo2, RTFSOBJATTRADD_NOTHING), VINF_SUCCESS);
1011	RTTESTI_CHECK((RTTimeSpecGetSeconds(&ObjInfo2.AccessTime) >> 2) == (RTTimeSpecGetSeconds(&Time1) >> 2));
1012	RTTESTI_CHECK(RTTimeSpecGetNano(&ObjInfo2.ModificationTime) / 1000 == RTTimeSpecGetNano(&ObjInfo1.ModificationTime) / 1000);
1013
1014	/* Benchmark it: */
1015	PROFILE_FN(RTFileSetTimes(hFile1, NULL, iIteration & 1 ? &Time1 : &Time2, NULL, NULL), g_nsTestRun, "RTFileSetTimes");
1016
1017	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
1018	}
1019
1020
1021	void fsPerfStat(void)
1022	{
1023	RTTestISub("stat");
1024	RTFSOBJINFO ObjInfo;
1025
1026	/* Non-existing files. */
1027	RTTESTI_CHECK_RC(RTPathQueryInfoEx(InEmptyDir(RT_STR_TUPLE("no-such-file")),
1028	&ObjInfo, RTFSOBJATTRADD_NOTHING, RTPATH_F_ON_LINK), VERR_FILE_NOT_FOUND);
1029	RTTESTI_CHECK_RC(RTPathQueryInfoEx(InEmptyDir(RT_STR_TUPLE("no-such-dir" RTPATH_SLASH_STR "no-such-file")),
1030	&ObjInfo, RTFSOBJATTRADD_NOTHING, RTPATH_F_ON_LINK), FSPERF_VERR_PATH_NOT_FOUND);
1031	RTTESTI_CHECK_RC(RTPathQueryInfoEx(InDir(RT_STR_TUPLE("known-file" RTPATH_SLASH_STR "no-such-file")),
1032	&ObjInfo, RTFSOBJATTRADD_NOTHING, RTPATH_F_ON_LINK), VERR_PATH_NOT_FOUND);
1033
1034	/* Shallow: */
1035	RTFILE hFile1;
1036	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFile1, InDir(RT_STR_TUPLE("file3")),
1037	RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
1038	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
1039
1040	PROFILE_FN(RTPathQueryInfoEx(g_szDir, &ObjInfo, RTFSOBJATTRADD_NOTHING, RTPATH_F_ON_LINK), g_nsTestRun,
1041	"RTPathQueryInfoEx/NOTHING");
1042	PROFILE_FN(RTPathQueryInfoEx(g_szDir, &ObjInfo, RTFSOBJATTRADD_UNIX, RTPATH_F_ON_LINK), g_nsTestRun,
1043	"RTPathQueryInfoEx/UNIX");
1044
1045
1046	/* Deep: */
1047	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFile1, InDeepDir(RT_STR_TUPLE("file3")),
1048	RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
1049	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
1050
1051	PROFILE_FN(RTPathQueryInfoEx(g_szDeepDir, &ObjInfo, RTFSOBJATTRADD_NOTHING, RTPATH_F_ON_LINK), g_nsTestRun,
1052	"RTPathQueryInfoEx/deep/NOTHING");
1053	PROFILE_FN(RTPathQueryInfoEx(g_szDeepDir, &ObjInfo, RTFSOBJATTRADD_UNIX, RTPATH_F_ON_LINK), g_nsTestRun,
1054	"RTPathQueryInfoEx/deep/UNIX");
1055
1056	/* Manytree: */
1057	char szPath[FSPERF_MAX_PATH];
1058	PROFILE_MANYTREE_FN(szPath, RTPathQueryInfoEx(szPath, &ObjInfo, RTFSOBJATTRADD_NOTHING, RTPATH_F_ON_LINK),
1059	1, g_nsTestRun, "RTPathQueryInfoEx/manytree/NOTHING");
1060	PROFILE_MANYTREE_FN(szPath, RTPathQueryInfoEx(szPath, &ObjInfo, RTFSOBJATTRADD_UNIX, RTPATH_F_ON_LINK),
1061	1, g_nsTestRun, "RTPathQueryInfoEx/manytree/UNIX");
1062	}
1063
1064
1065	void fsPerfChmod(void)
1066	{
1067	RTTestISub("chmod");
1068
1069	/* Non-existing files. */
1070	RTTESTI_CHECK_RC(RTPathSetMode(InEmptyDir(RT_STR_TUPLE("no-such-file")), 0665),
1071	VERR_FILE_NOT_FOUND);
1072	RTTESTI_CHECK_RC(RTPathSetMode(InEmptyDir(RT_STR_TUPLE("no-such-dir" RTPATH_SLASH_STR "no-such-file")), 0665),
1073	FSPERF_VERR_PATH_NOT_FOUND);
1074	RTTESTI_CHECK_RC(RTPathSetMode(InDir(RT_STR_TUPLE("known-file" RTPATH_SLASH_STR "no-such-file")), 0665), VERR_PATH_NOT_FOUND);
1075
1076	/* Shallow: */
1077	RTFILE hFile1;
1078	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFile1, InDir(RT_STR_TUPLE("file14")),
1079	RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
1080	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
1081
1082	RTFSOBJINFO ObjInfo;
1083	RTTESTI_CHECK_RC(RTPathQueryInfoEx(g_szDir, &ObjInfo, RTFSOBJATTRADD_NOTHING, RTPATH_F_ON_LINK), VINF_SUCCESS);
1084	RTFMODE const fEvenMode = (ObjInfo.Attr.fMode & ~RTFS_UNIX_ALL_ACCESS_PERMS) \| RTFS_DOS_READONLY \| 0400;
1085	RTFMODE const fOddMode = (ObjInfo.Attr.fMode & ~(RTFS_UNIX_ALL_ACCESS_PERMS \| RTFS_DOS_READONLY)) \| 0640;
1086	PROFILE_FN(RTPathSetMode(g_szDir, iIteration & 1 ? fOddMode : fEvenMode), g_nsTestRun, "RTPathSetMode");
1087	RTPathSetMode(g_szDir, ObjInfo.Attr.fMode);
1088
1089	/* Deep: */
1090	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFile1, InDeepDir(RT_STR_TUPLE("file14")),
1091	RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
1092	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
1093
1094	PROFILE_FN(RTPathSetMode(g_szDeepDir, iIteration & 1 ? fOddMode : fEvenMode), g_nsTestRun, "RTPathSetMode/deep");
1095	RTPathSetMode(g_szDeepDir, ObjInfo.Attr.fMode);
1096
1097	/* Manytree: */
1098	char szPath[FSPERF_MAX_PATH];
1099	PROFILE_MANYTREE_FN(szPath, RTPathSetMode(szPath, iIteration & 1 ? fOddMode : fEvenMode), 1, g_nsTestRun,
1100	"RTPathSetMode/manytree");
1101	DO_MANYTREE_FN(szPath, RTPathSetMode(szPath, ObjInfo.Attr.fMode));
1102	}
1103
1104
1105	void fsPerfUtimes(void)
1106	{
1107	RTTestISub("utimes");
1108
1109	RTTIMESPEC Time1;
1110	RTTimeNow(&Time1);
1111	RTTIMESPEC Time2 = Time1;
1112	RTTimeSpecSubSeconds(&Time2, 3636);
1113
1114	/* Non-existing files. */
1115	RTTESTI_CHECK_RC(RTPathSetTimesEx(InEmptyDir(RT_STR_TUPLE("no-such-file")), NULL, &Time1, NULL, NULL, RTPATH_F_ON_LINK),
1116	VERR_FILE_NOT_FOUND);
1117	RTTESTI_CHECK_RC(RTPathSetTimesEx(InEmptyDir(RT_STR_TUPLE("no-such-dir" RTPATH_SLASH_STR "no-such-file")),
1118	NULL, &Time1, NULL, NULL, RTPATH_F_ON_LINK),
1119	FSPERF_VERR_PATH_NOT_FOUND);
1120	RTTESTI_CHECK_RC(RTPathSetTimesEx(InDir(RT_STR_TUPLE("known-file" RTPATH_SLASH_STR "no-such-file")),
1121	NULL, &Time1, NULL, NULL, RTPATH_F_ON_LINK),
1122	VERR_PATH_NOT_FOUND);
1123
1124	/* Shallow: */
1125	RTFILE hFile1;
1126	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFile1, InDir(RT_STR_TUPLE("file15")),
1127	RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
1128	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
1129
1130	RTFSOBJINFO ObjInfo0 = {0};
1131	RTTESTI_CHECK_RC(RTPathQueryInfoEx(g_szDir, &ObjInfo0, RTFSOBJATTRADD_NOTHING, RTPATH_F_ON_LINK), VINF_SUCCESS);
1132
1133	/* Modify modification time: */
1134	RTTESTI_CHECK_RC(RTPathSetTimesEx(g_szDir, NULL, &Time2, NULL, NULL, RTPATH_F_ON_LINK), VINF_SUCCESS);
1135	RTFSOBJINFO ObjInfo1;
1136	RTTESTI_CHECK_RC(RTPathQueryInfoEx(g_szDir, &ObjInfo1, RTFSOBJATTRADD_NOTHING, RTPATH_F_ON_LINK), VINF_SUCCESS);
1137	RTTESTI_CHECK((RTTimeSpecGetSeconds(&ObjInfo1.ModificationTime) >> 2) == (RTTimeSpecGetSeconds(&Time2) >> 2));
1138	RTTESTI_CHECK(RTTimeSpecGetNano(&ObjInfo1.AccessTime) / 1000 == RTTimeSpecGetNano(&ObjInfo0.AccessTime) / 1000 /* posix timeval */);
1139
1140	/* Modify access time: */
1141	RTTESTI_CHECK_RC(RTPathSetTimesEx(g_szDir, &Time1, NULL, NULL, NULL, RTPATH_F_ON_LINK), VINF_SUCCESS);
1142	RTFSOBJINFO ObjInfo2 = {0};
1143	RTTESTI_CHECK_RC(RTPathQueryInfoEx(g_szDir, &ObjInfo2, RTFSOBJATTRADD_NOTHING, RTPATH_F_ON_LINK), VINF_SUCCESS);
1144	RTTESTI_CHECK((RTTimeSpecGetSeconds(&ObjInfo2.AccessTime) >> 2) == (RTTimeSpecGetSeconds(&Time1) >> 2));
1145	RTTESTI_CHECK(RTTimeSpecGetNano(&ObjInfo2.ModificationTime) / 1000 == RTTimeSpecGetNano(&ObjInfo1.ModificationTime) / 1000 /* posix timeval */);
1146
1147	/* Profile shallow: */
1148	PROFILE_FN(RTPathSetTimesEx(g_szDir, iIteration & 1 ? &Time1 : &Time2, iIteration & 1 ? &Time2 : &Time1,
1149	NULL, NULL, RTPATH_F_ON_LINK),
1150	g_nsTestRun, "RTPathSetTimesEx");
1151
1152	/* Deep: */
1153	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFile1, InDeepDir(RT_STR_TUPLE("file15")),
1154	RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
1155	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
1156
1157	PROFILE_FN(RTPathSetTimesEx(g_szDeepDir, iIteration & 1 ? &Time1 : &Time2, iIteration & 1 ? &Time2 : &Time1,
1158	NULL, NULL, RTPATH_F_ON_LINK),
1159	g_nsTestRun, "RTPathSetTimesEx/deep");
1160
1161	/* Manytree: */
1162	char szPath[FSPERF_MAX_PATH];
1163	PROFILE_MANYTREE_FN(szPath, RTPathSetTimesEx(szPath, iIteration & 1 ? &Time1 : &Time2, iIteration & 1 ? &Time2 : &Time1,
1164	NULL, NULL, RTPATH_F_ON_LINK),
1165	1, g_nsTestRun, "RTPathSetTimesEx/manytree");
1166	}
1167
1168
1169	DECL_FORCE_INLINE(int) fsPerfRenameMany(const char *pszFile, uint32_t iIteration)
1170	{
1171	char szRenamed[FSPERF_MAX_PATH];
1172	strcat(strcpy(szRenamed, pszFile), "-renamed");
1173	if (!(iIteration & 1))
1174	return RTPathRename(pszFile, szRenamed, 0);
1175	return RTPathRename(szRenamed, pszFile, 0);
1176	}
1177
1178
1179	void fsPerfRename(void)
1180	{
1181	RTTestISub("rename");
1182	char szPath[FSPERF_MAX_PATH];
1183
1184	/** @todo rename directories too! */
1185	/** @todo check overwriting files and directoris (empty ones should work on
1186	* unix). */
1187
1188	/* Non-existing files. */
1189	strcpy(szPath, InEmptyDir(RT_STR_TUPLE("other-no-such-file")));
1190	RTTESTI_CHECK_RC(RTPathRename(InEmptyDir(RT_STR_TUPLE("no-such-file")), szPath, 0), VERR_FILE_NOT_FOUND);
1191	strcpy(szPath, InEmptyDir(RT_STR_TUPLE("no-such-dir" RTPATH_SLASH_STR "other-no-such-file")));
1192	RTTESTI_CHECK_RC(RTPathRename(InEmptyDir(RT_STR_TUPLE("no-such-dir" RTPATH_SLASH_STR "no-such-file")), szPath, 0),
1193	FSPERF_VERR_PATH_NOT_FOUND);
1194	strcpy(szPath, InEmptyDir(RT_STR_TUPLE("other-no-such-file")));
1195	RTTESTI_CHECK_RC(RTPathRename(InDir(RT_STR_TUPLE("known-file" RTPATH_SLASH_STR "no-such-file")), szPath, 0), VERR_PATH_NOT_FOUND);
1196
1197	RTFILE hFile1;
1198	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFile1, InDir(RT_STR_TUPLE("file16")),
1199	RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
1200	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
1201	strcat(strcpy(szPath, g_szDir), "-no-such-dir" RTPATH_SLASH_STR "file16");
1202	RTTESTI_CHECK_RC(RTPathRename(szPath, g_szDir, 0), FSPERF_VERR_PATH_NOT_FOUND);
1203	RTTESTI_CHECK_RC(RTPathRename(g_szDir, szPath, 0), FSPERF_VERR_PATH_NOT_FOUND);
1204
1205	/* Shallow: */
1206	strcat(strcpy(szPath, g_szDir), "-other");
1207	PROFILE_FN(RTPathRename(iIteration & 1 ? szPath : g_szDir, iIteration & 1 ? g_szDir : szPath, 0), g_nsTestRun, "RTPathRename");
1208
1209	/* Deep: */
1210	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFile1, InDeepDir(RT_STR_TUPLE("file15")),
1211	RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
1212	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
1213
1214	strcat(strcpy(szPath, g_szDeepDir), "-other");
1215	PROFILE_FN(RTPathRename(iIteration & 1 ? szPath : g_szDeepDir, iIteration & 1 ? g_szDeepDir : szPath, 0),
1216	g_nsTestRun, "RTPathRename/deep");
1217
1218	/* Manytree: */
1219	PROFILE_MANYTREE_FN(szPath, fsPerfRenameMany(szPath, iIteration), 2, g_nsTestRun, "RTPathRename/manytree");
1220	}
1221
1222
1223	DECL_FORCE_INLINE(int) fsPerfOpenClose(const char *pszDir)
1224	{
1225	RTDIR hDir;
1226	RTTESTI_CHECK_RC_RET(RTDirOpen(&hDir, pszDir), VINF_SUCCESS, rcCheck);
1227	RTTESTI_CHECK_RC(RTDirClose(hDir), VINF_SUCCESS);
1228	return VINF_SUCCESS;
1229	}
1230
1231
1232	void vsPerfDirOpen(void)
1233	{
1234	RTTestISub("dir open");
1235	RTDIR hDir;
1236
1237	/*
1238	* Non-existing files.
1239	*/
1240	RTTESTI_CHECK_RC(RTDirOpen(&hDir, InEmptyDir(RT_STR_TUPLE("no-such-file"))), VERR_FILE_NOT_FOUND);
1241	RTTESTI_CHECK_RC(RTDirOpen(&hDir, InEmptyDir(RT_STR_TUPLE("no-such-dir" RTPATH_SLASH_STR "no-such-file"))), FSPERF_VERR_PATH_NOT_FOUND);
1242	RTTESTI_CHECK_RC(RTDirOpen(&hDir, InDir(RT_STR_TUPLE("known-file" RTPATH_SLASH_STR "no-such-file"))), VERR_PATH_NOT_FOUND);
1243
1244	/*
1245	* Check that open + close works.
1246	*/
1247	g_szEmptyDir[g_cchEmptyDir] = '\0';
1248	RTTESTI_CHECK_RC_RETV(RTDirOpen(&hDir, g_szEmptyDir), VINF_SUCCESS);
1249	RTTESTI_CHECK_RC(RTDirClose(hDir), VINF_SUCCESS);
1250
1251
1252	/*
1253	* Profile empty dir and dir with many files.
1254	*/
1255	g_szEmptyDir[g_cchEmptyDir] = '\0';
1256	PROFILE_FN(fsPerfOpenClose(g_szEmptyDir), g_nsTestRun, "RTDirOpen/Close empty");
1257	if (g_fManyFiles)
1258	{
1259	InDir(RT_STR_TUPLE("manyfiles"));
1260	PROFILE_FN(fsPerfOpenClose(g_szDir), g_nsTestRun, "RTDirOpen/Close manyfiles");
1261	}
1262	}
1263
1264
1265	DECL_FORCE_INLINE(int) fsPerfEnumEmpty(void)
1266	{
1267	RTDIR hDir;
1268	g_szEmptyDir[g_cchEmptyDir] = '\0';
1269	RTTESTI_CHECK_RC_RET(RTDirOpen(&hDir, g_szEmptyDir), VINF_SUCCESS, rcCheck);
1270
1271	RTDIRENTRY Entry;
1272	RTTESTI_CHECK_RC(RTDirRead(hDir, &Entry, NULL), VINF_SUCCESS);
1273	RTTESTI_CHECK_RC(RTDirRead(hDir, &Entry, NULL), VINF_SUCCESS);
1274	RTTESTI_CHECK_RC(RTDirRead(hDir, &Entry, NULL), VERR_NO_MORE_FILES);
1275
1276	RTTESTI_CHECK_RC(RTDirClose(hDir), VINF_SUCCESS);
1277	return VINF_SUCCESS;
1278	}
1279
1280
1281	DECL_FORCE_INLINE(int) fsPerfEnumManyFiles(void)
1282	{
1283	RTDIR hDir;
1284	RTTESTI_CHECK_RC_RET(RTDirOpen(&hDir, InDir(RT_STR_TUPLE("manyfiles"))), VINF_SUCCESS, rcCheck);
1285	uint32_t cLeft = g_cManyFiles + 2;
1286	for (;;)
1287	{
1288	RTDIRENTRY Entry;
1289	if (cLeft > 0)
1290	RTTESTI_CHECK_RC_BREAK(RTDirRead(hDir, &Entry, NULL), VINF_SUCCESS);
1291	else
1292	{
1293	RTTESTI_CHECK_RC(RTDirRead(hDir, &Entry, NULL), VERR_NO_MORE_FILES);
1294	break;
1295	}
1296	cLeft--;
1297	}
1298	RTTESTI_CHECK_RC(RTDirClose(hDir), VINF_SUCCESS);
1299	return VINF_SUCCESS;
1300	}
1301
1302
1303	void vsPerfDirEnum(void)
1304	{
1305	RTTestISub("dir enum");
1306	RTDIR hDir;
1307
1308	/*
1309	* The empty directory.
1310	*/
1311	g_szEmptyDir[g_cchEmptyDir] = '\0';
1312	RTTESTI_CHECK_RC_RETV(RTDirOpen(&hDir, g_szEmptyDir), VINF_SUCCESS);
1313
1314	uint32_t fDots = 0;
1315	RTDIRENTRY Entry;
1316	RTTESTI_CHECK_RC(RTDirRead(hDir, &Entry, NULL), VINF_SUCCESS);
1317	RTTESTI_CHECK(RTDirEntryIsStdDotLink(&Entry));
1318	fDots \|= RT_BIT_32(Entry.cbName - 1);
1319
1320	RTTESTI_CHECK_RC(RTDirRead(hDir, &Entry, NULL), VINF_SUCCESS);
1321	RTTESTI_CHECK(RTDirEntryIsStdDotLink(&Entry));
1322	fDots \|= RT_BIT_32(Entry.cbName - 1);
1323	RTTESTI_CHECK(fDots == 3);
1324
1325	RTTESTI_CHECK_RC(RTDirRead(hDir, &Entry, NULL), VERR_NO_MORE_FILES);
1326
1327	RTTESTI_CHECK_RC(RTDirClose(hDir), VINF_SUCCESS);
1328
1329	/*
1330	* The directory with many files in it.
1331	*/
1332	if (g_fManyFiles)
1333	{
1334	fDots = 0;
1335	uint32_t const cBitmap = RT_ALIGN_32(g_cManyFiles, 64);
1336	void *pvBitmap = alloca(cBitmap / 8);
1337	RT_BZERO(pvBitmap, cBitmap / 8);
1338	for (uint32_t i = g_cManyFiles; i < cBitmap; i++)
1339	ASMBitSet(pvBitmap, i);
1340
1341	uint32_t cFiles = 0;
1342	RTTESTI_CHECK_RC_RETV(RTDirOpen(&hDir, InDir(RT_STR_TUPLE("manyfiles"))), VINF_SUCCESS);
1343	for (;;)
1344	{
1345	int rc = RTDirRead(hDir, &Entry, NULL);
1346	if (rc == VINF_SUCCESS)
1347	{
1348	if (Entry.szName[0] == '.')
1349	{
1350	if (Entry.szName[1] == '.')
1351	{
1352	RTTESTI_CHECK(!(fDots & 2));
1353	fDots \|= 2;
1354	}
1355	else
1356	{
1357	RTTESTI_CHECK(Entry.szName[1] == '\0');
1358	RTTESTI_CHECK(!(fDots & 1));
1359	fDots \|= 1;
1360	}
1361	}
1362	else
1363	{
1364	uint32_t iFile = UINT32_MAX;
1365	RTTESTI_CHECK_RC(RTStrToUInt32Full(Entry.szName, 10, &iFile), VINF_SUCCESS);
1366	if ( iFile < g_cManyFiles
1367	&& !ASMBitTest(pvBitmap, iFile))
1368	{
1369	ASMBitSet(pvBitmap, iFile);
1370	cFiles++;
1371	}
1372	else
1373	RTTestFailed(g_hTest, "line %u: iFile=%u g_cManyFiles=%u\n", __LINE__, iFile, g_cManyFiles);
1374	}
1375	}
1376	else if (rc == VERR_NO_MORE_FILES)
1377	break;
1378	else
1379	{
1380	RTTestFailed(g_hTest, "RTDirRead failed enumerating manyfiles: %Rrc\n", rc);
1381	RTDirClose(hDir);
1382	return;
1383	}
1384	}
1385	RTTESTI_CHECK_RC(RTDirClose(hDir), VINF_SUCCESS);
1386	RTTESTI_CHECK(fDots == 3);
1387	RTTESTI_CHECK(cFiles == g_cManyFiles);
1388	RTTESTI_CHECK(ASMMemIsAllU8(pvBitmap, cBitmap / 8, 0xff));
1389	}
1390
1391	/*
1392	* Profile.
1393	*/
1394	PROFILE_FN(fsPerfEnumEmpty(),g_nsTestRun, "RTDirOpen/Read/Close empty");
1395	if (g_fManyFiles)
1396	PROFILE_FN(fsPerfEnumManyFiles(), g_nsTestRun, "RTDirOpen/Read/Close manyfiles");
1397	}
1398
1399
1400	void fsPerfMkRmDir(void)
1401	{
1402	RTTestISub("mkdir/rmdir");
1403
1404	/* Non-existing directories: */
1405	RTTESTI_CHECK_RC(RTDirRemove(InEmptyDir(RT_STR_TUPLE("no-such-dir"))), VERR_FILE_NOT_FOUND);
1406	RTTESTI_CHECK_RC(RTDirRemove(InEmptyDir(RT_STR_TUPLE("no-such-dir" RTPATH_SLASH_STR "no-such-file"))), FSPERF_VERR_PATH_NOT_FOUND);
1407	RTTESTI_CHECK_RC(RTDirRemove(InDir(RT_STR_TUPLE("known-file" RTPATH_SLASH_STR "no-such-file"))), VERR_PATH_NOT_FOUND);
1408	RTTESTI_CHECK_RC(RTDirCreate(InEmptyDir(RT_STR_TUPLE("no-such-dir" RTPATH_SLASH_STR "no-such-file")), 0755, 0), FSPERF_VERR_PATH_NOT_FOUND);
1409	RTTESTI_CHECK_RC(RTDirCreate(InDir(RT_STR_TUPLE("known-file" RTPATH_SLASH_STR "no-such-file")), 0755, 0), VERR_PATH_NOT_FOUND);
1410
1411	/** @todo check what happens if non-final path component isn't a directory. unix
1412	* should return ENOTDIR and IPRT translates that to VERR_PATH_NOT_FOUND.
1413	* Curious what happens on windows. */
1414
1415	/* Already existing directories and files: */
1416	RTTESTI_CHECK_RC(RTDirCreate(InEmptyDir(RT_STR_TUPLE(".")), 0755, 0), VERR_ALREADY_EXISTS);
1417	RTTESTI_CHECK_RC(RTDirCreate(InEmptyDir(RT_STR_TUPLE("..")), 0755, 0), VERR_ALREADY_EXISTS);
1418
1419	/* Remove directory with subdirectories: */
1420	#if defined(RT_OS_WINDOWS) \|\| defined(RT_OS_OS2)
1421	RTTESTI_CHECK_RC(RTDirRemove(InDir(RT_STR_TUPLE("."))), VERR_DIR_NOT_EMPTY);
1422	#else
1423	RTTESTI_CHECK_RC(RTDirRemove(InDir(RT_STR_TUPLE("."))), VERR_INVALID_PARAMETER); /* EINVAL for '.' */
1424	#endif
1425	#if defined(RT_OS_WINDOWS) \|\| defined(RT_OS_OS2)
1426	int rc = RTDirRemove(InDir(RT_STR_TUPLE("..")));
1427	# ifdef RT_OS_WINDOWS
1428	if (rc != VERR_DIR_NOT_EMPTY /ntfs root/ && rc != VERR_SHARING_VIOLATION /ntfs weird/)
1429	RTTestIFailed("RTDirRemove(%s) -> %Rrc, expected VERR_DIR_NOT_EMPTY or VERR_SHARING_VIOLATION", g_szDir, rc);
1430	# else
1431	if (rc != VERR_DIR_NOT_EMPTY && rc != VERR_RESOURCE_BUSY /IPRT/kLIBC fun/)
1432	RTTestIFailed("RTDirRemove(%s) -> %Rrc, expected VERR_DIR_NOT_EMPTY or VERR_RESOURCE_BUSY", g_szDir, rc);
1433
1434	APIRET orc;
1435	RTTESTI_CHECK_MSG((orc = DosDelete((PCSZ)InEmptyDir(RT_STR_TUPLE(".")))) == ERROR_ACCESS_DENIED,
1436	("DosDelete(%s) -> %u, expected %u\n", g_szEmptyDir, orc, ERROR_ACCESS_DENIED));
1437	RTTESTI_CHECK_MSG((orc = DosDelete((PCSZ)InEmptyDir(RT_STR_TUPLE("..")))) == ERROR_ACCESS_DENIED,
1438	("DosDelete(%s) -> %u, expected %u\n", g_szEmptyDir, orc, ERROR_ACCESS_DENIED));
1439	RTTESTI_CHECK_MSG((orc = DosDelete((PCSZ)InEmptyDir(RT_STR_TUPLE("")))) == ERROR_PATH_NOT_FOUND, /* a little weird (fsrouter) */
1440	("DosDelete(%s) -> %u, expected %u\n", g_szEmptyDir, orc, ERROR_PATH_NOT_FOUND));
1441
1442	# endif
1443	#else
1444	RTTESTI_CHECK_RC(RTDirRemove(InDir(RT_STR_TUPLE(".."))), VERR_DIR_NOT_EMPTY);
1445	#endif
1446	RTTESTI_CHECK_RC(RTDirRemove(InDir(RT_STR_TUPLE(""))), VERR_DIR_NOT_EMPTY);
1447
1448	/* Create a directory and remove it: */
1449	RTTESTI_CHECK_RC(RTDirCreate(InDir(RT_STR_TUPLE("subdir-1")), 0755, 0), VINF_SUCCESS);
1450	RTTESTI_CHECK_RC(RTDirRemove(g_szDir), VINF_SUCCESS);
1451
1452	/* Create a file and try remove it or create a directory with the same name: */
1453	RTFILE hFile1;
1454	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFile1, InDir(RT_STR_TUPLE("file18")),
1455	RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
1456	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
1457	RTTESTI_CHECK_RC(RTDirRemove(g_szDir), VERR_NOT_A_DIRECTORY);
1458	RTTESTI_CHECK_RC(RTDirCreate(g_szDir, 0755, 0), VERR_ALREADY_EXISTS);
1459	RTTESTI_CHECK_RC(RTDirCreate(InDir(RT_STR_TUPLE("file18" RTPATH_SLASH_STR "subdir")), 0755, 0), VERR_PATH_NOT_FOUND);
1460
1461	/*
1462	* Profile alternately creating and removing a bunch of directories.
1463	*/
1464	RTTESTI_CHECK_RC_RETV(RTDirCreate(InDir(RT_STR_TUPLE("subdir-2")), 0755, 0), VINF_SUCCESS);
1465	size_t cchDir = strlen(g_szDir);
1466	g_szDir[cchDir++] = RTPATH_SLASH;
1467	g_szDir[cchDir++] = 's';
1468
1469	uint32_t cCreated = 0;
1470	uint64_t nsCreate = 0;
1471	uint64_t nsRemove = 0;
1472	for (;;)
1473	{
1474	/* Create a bunch: */
1475	uint64_t nsStart = RTTimeNanoTS();
1476	for (uint32_t i = 0; i < 998; i++)
1477	{
1478	RTStrFormatU32(&g_szDir[cchDir], sizeof(g_szDir) - cchDir, i, 10, 3, 3, RTSTR_F_ZEROPAD);
1479	RTTESTI_CHECK_RC_RETV(RTDirCreate(g_szDir, 0755, 0), VINF_SUCCESS);
1480	}
1481	nsCreate += RTTimeNanoTS() - nsStart;
1482	cCreated += 998;
1483
1484	/* Remove the bunch: */
1485	nsStart = RTTimeNanoTS();
1486	for (uint32_t i = 0; i < 998; i++)
1487	{
1488	RTStrFormatU32(&g_szDir[cchDir], sizeof(g_szDir) - cchDir, i, 10, 3, 3, RTSTR_F_ZEROPAD);
1489	RTTESTI_CHECK_RC_RETV(RTDirRemove(g_szDir), VINF_SUCCESS);
1490	}
1491	nsRemove = RTTimeNanoTS() - nsStart;
1492
1493	/* Check if we got time for another round: */
1494	if ( ( nsRemove >= g_nsTestRun
1495	&& nsCreate >= g_nsTestRun)
1496	\|\| nsCreate + nsRemove >= g_nsTestRun * 3)
1497	break;
1498	}
1499	RTTestIValue("RTDirCreate", nsCreate / cCreated, RTTESTUNIT_NS_PER_OCCURRENCE);
1500	RTTestIValue("RTDirRemove", nsRemove / cCreated, RTTESTUNIT_NS_PER_OCCURRENCE);
1501	}
1502
1503
1504	void fsPerfStatVfs(void)
1505	{
1506	RTTestISub("statvfs");
1507
1508	g_szEmptyDir[g_cchEmptyDir] = '\0';
1509	RTFOFF cbTotal;
1510	RTFOFF cbFree;
1511	uint32_t cbBlock;
1512	uint32_t cbSector;
1513	RTTESTI_CHECK_RC(RTFsQuerySizes(g_szEmptyDir, &cbTotal, &cbFree, &cbBlock, &cbSector), VINF_SUCCESS);
1514
1515	uint32_t uSerial;
1516	RTTESTI_CHECK_RC(RTFsQuerySerial(g_szEmptyDir, &uSerial), VINF_SUCCESS);
1517
1518	RTFSPROPERTIES Props;
1519	RTTESTI_CHECK_RC(RTFsQueryProperties(g_szEmptyDir, &Props), VINF_SUCCESS);
1520
1521	RTFSTYPE enmType;
1522	RTTESTI_CHECK_RC(RTFsQueryType(g_szEmptyDir, &enmType), VINF_SUCCESS);
1523
1524	g_szDeepDir[g_cchDeepDir] = '\0';
1525	PROFILE_FN(RTFsQuerySizes(g_szEmptyDir, &cbTotal, &cbFree, &cbBlock, &cbSector), g_nsTestRun, "RTFsQuerySize/empty");
1526	PROFILE_FN(RTFsQuerySizes(g_szDeepDir, &cbTotal, &cbFree, &cbBlock, &cbSector), g_nsTestRun, "RTFsQuerySize/deep");
1527	}
1528
1529
1530	void fsPerfRm(void)
1531	{
1532	RTTestISub("rm");
1533
1534	/* Non-existing files. */
1535	RTTESTI_CHECK_RC(RTFileDelete(InEmptyDir(RT_STR_TUPLE("no-such-file"))), VERR_FILE_NOT_FOUND);
1536	RTTESTI_CHECK_RC(RTFileDelete(InEmptyDir(RT_STR_TUPLE("no-such-dir" RTPATH_SLASH_STR "no-such-file"))), FSPERF_VERR_PATH_NOT_FOUND);
1537	RTTESTI_CHECK_RC(RTFileDelete(InDir(RT_STR_TUPLE("known-file" RTPATH_SLASH_STR "no-such-file"))), VERR_PATH_NOT_FOUND);
1538
1539	/* Directories: */
1540	#if defined(RT_OS_WINDOWS)
1541	RTTESTI_CHECK_RC(RTFileDelete(InEmptyDir(RT_STR_TUPLE("."))), VERR_ACCESS_DENIED);
1542	RTTESTI_CHECK_RC(RTFileDelete(InEmptyDir(RT_STR_TUPLE(".."))), VERR_ACCESS_DENIED);
1543	RTTESTI_CHECK_RC(RTFileDelete(InEmptyDir(RT_STR_TUPLE(""))), VERR_ACCESS_DENIED);
1544	#elif defined(RT_OS_DARWIN) /* unlink() on xnu 16.7.0 is behaviour totally werid: */
1545	RTTESTI_CHECK_RC(RTFileDelete(InEmptyDir(RT_STR_TUPLE("."))), VERR_INVALID_PARAMETER);
1546	RTTESTI_CHECK_RC(RTFileDelete(InEmptyDir(RT_STR_TUPLE(".."))), VINF_SUCCESS /WTF?!?/);
1547	RTTESTI_CHECK_RC(RTFileDelete(InEmptyDir(RT_STR_TUPLE(""))), VERR_ACCESS_DENIED);
1548	#elif defined(RT_OS_OS2) /* OS/2 has a busted unlink, it think it should remove directories too. */
1549	RTTESTI_CHECK_RC(RTFileDelete(InDir(RT_STR_TUPLE("."))), VERR_DIR_NOT_EMPTY);
1550	int rc = RTFileDelete(InDir(RT_STR_TUPLE("..")));
1551	if (rc != VERR_DIR_NOT_EMPTY && rc != VERR_FILE_NOT_FOUND && rc != VERR_RESOURCE_BUSY)
1552	RTTestIFailed("RTFileDelete(%s) -> %Rrc, expected VERR_DIR_NOT_EMPTY or VERR_FILE_NOT_FOUND or VERR_RESOURCE_BUSY", g_szDir, rc);
1553	RTTESTI_CHECK_RC(RTFileDelete(InDir(RT_STR_TUPLE(""))), VERR_DIR_NOT_EMPTY);
1554	APIRET orc;
1555	RTTESTI_CHECK_MSG((orc = DosDelete((PCSZ)InEmptyDir(RT_STR_TUPLE(".")))) == ERROR_ACCESS_DENIED,
1556	("DosDelete(%s) -> %u, expected %u\n", g_szEmptyDir, orc, ERROR_ACCESS_DENIED));
1557	RTTESTI_CHECK_MSG((orc = DosDelete((PCSZ)InEmptyDir(RT_STR_TUPLE("..")))) == ERROR_ACCESS_DENIED,
1558	("DosDelete(%s) -> %u, expected %u\n", g_szEmptyDir, orc, ERROR_ACCESS_DENIED));
1559	RTTESTI_CHECK_MSG((orc = DosDelete((PCSZ)InEmptyDir(RT_STR_TUPLE("")))) == ERROR_PATH_NOT_FOUND,
1560	("DosDelete(%s) -> %u, expected %u\n", g_szEmptyDir, orc, ERROR_PATH_NOT_FOUND)); /* hpfs+jfs; weird. */
1561
1562	#else
1563	RTTESTI_CHECK_RC(RTFileDelete(InEmptyDir(RT_STR_TUPLE("."))), VERR_IS_A_DIRECTORY);
1564	RTTESTI_CHECK_RC(RTFileDelete(InEmptyDir(RT_STR_TUPLE(".."))), VERR_IS_A_DIRECTORY);
1565	RTTESTI_CHECK_RC(RTFileDelete(InEmptyDir(RT_STR_TUPLE(""))), VERR_IS_A_DIRECTORY);
1566	#endif
1567
1568	/* Shallow: */
1569	RTFILE hFile1;
1570	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFile1, InDir(RT_STR_TUPLE("file19")),
1571	RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
1572	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
1573	RTTESTI_CHECK_RC(RTFileDelete(g_szDir), VINF_SUCCESS);
1574	RTTESTI_CHECK_RC(RTFileDelete(g_szDir), VERR_FILE_NOT_FOUND);
1575
1576	if (g_fManyFiles)
1577	{
1578	/*
1579	* Profile the deletion of the manyfiles content.
1580	*/
1581	{
1582	InDir(RT_STR_TUPLE("manyfiles" RTPATH_SLASH_STR));
1583	size_t const offFilename = strlen(g_szDir);
1584	fsPerfYield();
1585	uint64_t const nsStart = RTTimeNanoTS();
1586	for (uint32_t i = 0; i < g_cManyFiles; i++)
1587	{
1588	RTStrFormatU32(&g_szDir[offFilename], sizeof(g_szDir) - offFilename, i, 10, 5, 5, RTSTR_F_ZEROPAD);
1589	RTTESTI_CHECK_RC_RETV(RTFileDelete(g_szDir), VINF_SUCCESS);
1590	}
1591	uint64_t const cNsElapsed = RTTimeNanoTS() - nsStart;
1592	RTTestIValueF(cNsElapsed, RTTESTUNIT_NS, "Deleted %u empty files from a single directory", g_cManyFiles);
1593	RTTestIValueF(cNsElapsed / g_cManyFiles, RTTESTUNIT_NS_PER_OCCURRENCE, "Delete file (single dir)");
1594	}
1595
1596	/*
1597	* Ditto for the manytree.
1598	*/
1599	{
1600	char szPath[FSPERF_MAX_PATH];
1601	uint64_t const nsStart = RTTimeNanoTS();
1602	DO_MANYTREE_FN(szPath, RTTESTI_CHECK_RC_RETV(RTFileDelete(szPath), VINF_SUCCESS));
1603	uint64_t const cNsElapsed = RTTimeNanoTS() - nsStart;
1604	RTTestIValueF(cNsElapsed, RTTESTUNIT_NS, "Deleted %u empty files in tree", g_cManyTreeFiles);
1605	RTTestIValueF(cNsElapsed / g_cManyTreeFiles, RTTESTUNIT_NS_PER_OCCURRENCE, "Delete file (tree)");
1606	}
1607	}
1608	}
1609
1610
1611	void fsPerfChSize(void)
1612	{
1613	RTTestISub("chsize");
1614
1615	/*
1616	* We need some free space to perform this test.
1617	*/
1618	g_szDir[g_cchDir] = '\0';
1619	RTFOFF cbFree = 0;
1620	RTTESTI_CHECK_RC_RETV(RTFsQuerySizes(g_szDir, NULL, &cbFree, NULL, NULL), VINF_SUCCESS);
1621	if (cbFree < _1M)
1622	{
1623	RTTestSkipped(g_hTest, "Insufficent free space: %'RU64 bytes, requires >= 1MB", cbFree);
1624	return;
1625	}
1626
1627	/*
1628	* Create a file and play around with it's size.
1629	* We let the current file position follow the end position as we make changes.
1630	*/
1631	RTFILE hFile1;
1632	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFile1, InDir(RT_STR_TUPLE("file20")),
1633	RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_READWRITE), VINF_SUCCESS);
1634	uint64_t cbFile = UINT64_MAX;
1635	RTTESTI_CHECK_RC(RTFileGetSize(hFile1, &cbFile), VINF_SUCCESS);
1636	RTTESTI_CHECK(cbFile == 0);
1637
1638	uint8_t abBuf[4096];
1639	static uint64_t const s_acbChanges[] =
1640	{
1641	1023, 1024, 1024, 1025, 8192, 11111, _1M, _8M, _8M,
1642	_4M, _2M + 1, _1M - 1, 65537, 65536, 32768, 8000, 7999, 7998, 1024, 1, 0
1643	};
1644	uint64_t cbOld = 0;
1645	for (unsigned i = 0; i < RT_ELEMENTS(s_acbChanges); i++)
1646	{
1647	uint64_t cbNew = s_acbChanges[i];
1648	if (cbNew + _64K >= (uint64_t)cbFree)
1649	continue;
1650
1651	RTTESTI_CHECK_RC(RTFileSetSize(hFile1, cbNew), VINF_SUCCESS);
1652	RTTESTI_CHECK_RC(RTFileGetSize(hFile1, &cbFile), VINF_SUCCESS);
1653	RTTESTI_CHECK_MSG(cbFile == cbNew, ("cbFile=%#RX64 cbNew=%#RX64\n", cbFile, cbNew));
1654
1655	if (cbNew > cbOld)
1656	{
1657	/* Check that the extension is all zeroed: */
1658	uint64_t cbLeft = cbNew - cbOld;
1659	while (cbLeft > 0)
1660	{
1661	memset(abBuf, 0xff, sizeof(abBuf));
1662	size_t cbToRead = sizeof(abBuf);
1663	if (cbToRead > cbLeft)
1664	cbToRead = (size_t)cbLeft;
1665	RTTESTI_CHECK_RC(RTFileRead(hFile1, abBuf, cbToRead, NULL), VINF_SUCCESS);
1666	RTTESTI_CHECK(ASMMemIsZero(abBuf, cbToRead));
1667	cbLeft -= cbToRead;
1668	}
1669	}
1670	else
1671	{
1672	/* Check that reading fails with EOF because current position is now beyond the end: */
1673	RTTESTI_CHECK_RC(RTFileRead(hFile1, abBuf, 1, NULL), VERR_EOF);
1674
1675	/* Keep current position at the end of the file: */
1676	RTTESTI_CHECK_RC(RTFileSeek(hFile1, cbNew, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS);
1677	}
1678	cbOld = cbNew;
1679	}
1680
1681	/*
1682	* Profile just the file setting operation itself, keeping the changes within
1683	* an allocation unit to avoid needing to adjust the actual (host) FS allocation.
1684	* ASSUMES allocation unit >= 512 and power of two.
1685	*/
1686	RTTESTI_CHECK_RC(RTFileSetSize(hFile1, _64K), VINF_SUCCESS);
1687	PROFILE_FN(RTFileSetSize(hFile1, _64K - (iIteration & 255) - 128), g_nsTestRun, "RTFileSetSize/noalloc");
1688
1689	RTTESTI_CHECK_RC(RTFileSetSize(hFile1, 0), VINF_SUCCESS);
1690	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
1691	RTTESTI_CHECK_RC(RTFileDelete(g_szDir), VINF_SUCCESS);
1692	}
1693
1694
1695	int fsPerfIoPrepFile(RTFILE hFile1, uint64_t cbFile, uint8_t **ppbFree)
1696	{
1697	/*
1698	* Seek to the end - 4K and write the last 4K.
1699	* This should have the effect of filling the whole file with zeros.
1700	*/
1701	RTTESTI_CHECK_RC_RET(RTFileSeek(hFile1, cbFile - _4K, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS, rcCheck);
1702	RTTESTI_CHECK_RC_RET(RTFileWrite(hFile1, g_abRTZero4K, _4K, NULL), VINF_SUCCESS, rcCheck);
1703
1704	/*
1705	* Check that the space we searched across actually is zero filled.
1706	*/
1707	RTTESTI_CHECK_RC_RET(RTFileSeek(hFile1, 0, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS, rcCheck);
1708	size_t cbBuf = _1M;
1709	uint8_t pbBuf = ppbFree = (uint8_t *)RTMemAlloc(cbBuf);
1710	RTTESTI_CHECK_RET(pbBuf != NULL, VERR_NO_MEMORY);
1711	uint64_t cbLeft = cbFile;
1712	while (cbLeft > 0)
1713	{
1714	size_t cbToRead = cbBuf;
1715	if (cbToRead > cbLeft)
1716	cbToRead = (size_t)cbLeft;
1717	pbBuf[cbToRead] = 0xff;
1718
1719	RTTESTI_CHECK_RC_RET(RTFileRead(hFile1, pbBuf, cbToRead, NULL), VINF_SUCCESS, rcCheck);
1720	RTTESTI_CHECK_RET(ASMMemIsZero(pbBuf, cbToRead), VERR_MISMATCH);
1721
1722	cbLeft -= cbToRead;
1723	}
1724
1725	/*
1726	* Fill the file with 0xf6 and insert offset markers with 1KB intervals.
1727	*/
1728	RTTESTI_CHECK_RC_RET(RTFileSeek(hFile1, 0, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS, rcCheck);
1729	memset(pbBuf, 0xf6, cbBuf);
1730	cbLeft = cbFile;
1731	uint64_t off = 0;
1732	while (cbLeft > 0)
1733	{
1734	Assert(!(off & (_1K - 1)));
1735	Assert(!(cbBuf & (_1K - 1)));
1736	for (size_t offBuf = 0; offBuf < cbBuf; offBuf += _1K, off += _1K)
1737	(uint64_t )&pbBuf[offBuf] = off;
1738
1739	size_t cbToWrite = cbBuf;
1740	if (cbToWrite > cbLeft)
1741	cbToWrite = (size_t)cbLeft;
1742
1743	RTTESTI_CHECK_RC_RET(RTFileWrite(hFile1, pbBuf, cbToWrite, NULL), VINF_SUCCESS, rcCheck);
1744
1745	cbLeft -= cbToWrite;
1746	}
1747
1748	return VINF_SUCCESS;
1749	}
1750
1751
1752	/**
1753	* Checks the content read from the file fsPerfIoPrepFile() prepared.
1754	*/
1755	bool fsPerfCheckReadBuf(unsigned uLineNo, uint64_t off, uint8_t const *pbBuf, size_t cbBuf, uint8_t bFiller = 0xf6)
1756	{
1757	uint32_t cMismatches = 0;
1758	size_t offBuf = 0;
1759	uint32_t offBlock = (uint32_t)(off & (_1K - 1));
1760	while (offBuf < cbBuf)
1761	{
1762	/*
1763	* Check the offset marker:
1764	*/
1765	if (offBlock < sizeof(uint64_t))
1766	{
1767	RTUINT64U uMarker;
1768	uMarker.u = off + offBuf - offBlock;
1769	unsigned offMarker = offBlock & (sizeof(uint64_t) - 1);
1770	while (offMarker < sizeof(uint64_t) && offBuf < cbBuf)
1771	{
1772	if (uMarker.au8[offMarker] != pbBuf[offBuf])
1773	{
1774	RTTestIFailed("%u: Mismatch at buffer/file offset %#zx/%#RX64: %#x, expected %#x",
1775	uLineNo, offBuf, off + offBuf, pbBuf[offBuf], uMarker.au8[offMarker]);
1776	if (cMismatches++ > 32)
1777	return false;
1778	}
1779	offMarker++;
1780	offBuf++;
1781	}
1782	offBlock = sizeof(uint64_t);
1783	}
1784
1785	/*
1786	* Check the filling:
1787	*/
1788	size_t cbFilling = RT_MIN(_1K - offBlock, cbBuf - offBuf);
1789	if ( cbFilling == 0
1790	\|\| ASMMemIsAllU8(&pbBuf[offBuf], cbFilling, bFiller))
1791	offBuf += cbFilling;
1792	else
1793	{
1794	/* Some mismatch, locate it/them: */
1795	while (cbFilling > 0 && offBuf < cbBuf)
1796	{
1797	if (pbBuf[offBuf] != bFiller)
1798	{
1799	RTTestIFailed("%u: Mismatch at buffer/file offset %#zx/%#RX64: %#x, expected %#04x",
1800	uLineNo, offBuf, off + offBuf, pbBuf[offBuf], bFiller);
1801	if (cMismatches++ > 32)
1802	return false;
1803	}
1804	offBuf++;
1805	cbFilling--;
1806	}
1807	}
1808	offBlock = 0;
1809	}
1810	return cMismatches == 0;
1811	}
1812
1813
1814	/**
1815	* Sets up write buffer with offset markers and fillers.
1816	*/
1817	void fsPerfFillWriteBuf(uint64_t off, uint8_t *pbBuf, size_t cbBuf, uint8_t bFiller = 0xf6)
1818	{
1819	uint32_t offBlock = (uint32_t)(off & (_1K - 1));
1820	while (cbBuf > 0)
1821	{
1822	/* The marker. */
1823	if (offBlock < sizeof(uint64_t))
1824	{
1825	RTUINT64U uMarker;
1826	uMarker.u = off + offBlock;
1827	if (cbBuf > sizeof(uMarker) - offBlock)
1828	{
1829	memcpy(pbBuf, &uMarker.au8[offBlock], sizeof(uMarker) - offBlock);
1830	pbBuf += sizeof(uMarker) - offBlock;
1831	cbBuf -= sizeof(uMarker) - offBlock;
1832	off += sizeof(uMarker) - offBlock;
1833	}
1834	else
1835	{
1836	memcpy(pbBuf, &uMarker.au8[offBlock], cbBuf);
1837	return;
1838	}
1839	offBlock = sizeof(uint64_t);
1840	}
1841
1842	/* Do the filling. */
1843	size_t cbFilling = RT_MIN(_1K - offBlock, cbBuf);
1844	memset(pbBuf, bFiller, cbFilling);
1845	pbBuf += cbFilling;
1846	cbBuf -= cbFilling;
1847	off += cbFilling;
1848
1849	offBlock = 0;
1850	}
1851	}
1852
1853
1854
1855	void fsPerfIoSeek(RTFILE hFile1, uint64_t cbFile)
1856	{
1857	/*
1858	* Do a bunch of search tests, most which are random.
1859	*/
1860	struct
1861	{
1862	int rc;
1863	uint32_t uMethod;
1864	int64_t offSeek;
1865	uint64_t offActual;
1866
1867	} aSeeks[9 + 64] =
1868	{
1869	{ VINF_SUCCESS, RTFILE_SEEK_BEGIN, 0, 0 },
1870	{ VINF_SUCCESS, RTFILE_SEEK_CURRENT, 0, 0 },
1871	{ VINF_SUCCESS, RTFILE_SEEK_END, 0, cbFile },
1872	{ VINF_SUCCESS, RTFILE_SEEK_CURRENT, -4096, cbFile - 4096 },
1873	{ VINF_SUCCESS, RTFILE_SEEK_CURRENT, 4096 - (int64_t)cbFile, 0 },
1874	{ VINF_SUCCESS, RTFILE_SEEK_END, -(int64_t)cbFile/2, cbFile / 2 + (cbFile & 1) },
1875	{ VINF_SUCCESS, RTFILE_SEEK_CURRENT, -(int64_t)cbFile/2, 0 },
1876	#if defined(RT_OS_WINDOWS)
1877	{ VERR_NEGATIVE_SEEK, RTFILE_SEEK_CURRENT, -1, 0 },
1878	#else
1879	{ VERR_INVALID_PARAMETER, RTFILE_SEEK_CURRENT, -1, 0 },
1880	#endif
1881	{ VINF_SUCCESS, RTFILE_SEEK_CURRENT, 0, 0 },
1882	};
1883
1884	uint64_t offActual = 0;
1885	for (unsigned i = 9; i < RT_ELEMENTS(aSeeks); i++)
1886	{
1887	switch (RTRandU32Ex(RTFILE_SEEK_BEGIN, RTFILE_SEEK_END))
1888	{
1889	default: AssertFailedBreak();
1890	case RTFILE_SEEK_BEGIN:
1891	aSeeks[i].uMethod = RTFILE_SEEK_BEGIN;
1892	aSeeks[i].rc = VINF_SUCCESS;
1893	aSeeks[i].offSeek = RTRandU64Ex(0, cbFile + cbFile / 8);
1894	aSeeks[i].offActual = offActual = aSeeks[i].offSeek;
1895	break;
1896
1897	case RTFILE_SEEK_CURRENT:
1898	aSeeks[i].uMethod = RTFILE_SEEK_CURRENT;
1899	aSeeks[i].rc = VINF_SUCCESS;
1900	aSeeks[i].offSeek = (int64_t)RTRandU64Ex(0, cbFile + cbFile / 8) - (int64_t)offActual;
1901	aSeeks[i].offActual = offActual += aSeeks[i].offSeek;
1902	break;
1903
1904	case RTFILE_SEEK_END:
1905	aSeeks[i].uMethod = RTFILE_SEEK_END;
1906	aSeeks[i].rc = VINF_SUCCESS;
1907	aSeeks[i].offSeek = -(int64_t)RTRandU64Ex(0, cbFile);
1908	aSeeks[i].offActual = offActual = cbFile + aSeeks[i].offSeek;
1909	break;
1910	}
1911	}
1912
1913	for (unsigned iDoReadCheck = 0; iDoReadCheck < 2; iDoReadCheck++)
1914	{
1915	for (uint32_t i = 0; i < RT_ELEMENTS(aSeeks); i++)
1916	{
1917	offActual = UINT64_MAX;
1918	int rc = RTFileSeek(hFile1, aSeeks[i].offSeek, aSeeks[i].uMethod, &offActual);
1919	if (rc != aSeeks[i].rc)
1920	RTTestIFailed("Seek #%u: Expected %Rrc, got %Rrc", i, aSeeks[i].rc, rc);
1921	if (RT_SUCCESS(rc) && offActual != aSeeks[i].offActual)
1922	RTTestIFailed("Seek #%u: offActual %#RX64, expected %#RX64", i, offActual, aSeeks[i].offActual);
1923	if (RT_SUCCESS(rc))
1924	{
1925	uint64_t offTell = RTFileTell(hFile1);
1926	if (offTell != offActual)
1927	RTTestIFailed("Seek #%u: offActual %#RX64, RTFileTell %#RX64", i, offActual, offTell);
1928	}
1929
1930	if (RT_SUCCESS(rc) && offActual + _2K <= cbFile && iDoReadCheck)
1931	{
1932	uint8_t abBuf[_2K];
1933	RTTESTI_CHECK_RC(rc = RTFileRead(hFile1, abBuf, sizeof(abBuf), NULL), VINF_SUCCESS);
1934	if (RT_SUCCESS(rc))
1935	{
1936	size_t offMarker = (size_t)(RT_ALIGN_64(offActual, _1K) - offActual);
1937	uint64_t uMarker = (uint64_t )&abBuf[offMarker]; /** @todo potentially unaligned access */
1938	if (uMarker != offActual + offMarker)
1939	RTTestIFailed("Seek #%u: Invalid marker value (@ %#RX64): %#RX64, expected %#RX64",
1940	i, offActual, uMarker, offActual + offMarker);
1941
1942	RTTESTI_CHECK_RC(RTFileSeek(hFile1, -(int64_t)sizeof(abBuf), RTFILE_SEEK_CURRENT, NULL), VINF_SUCCESS);
1943	}
1944	}
1945	}
1946	}
1947
1948
1949	/*
1950	* Profile seeking relative to the beginning of the file and relative
1951	* to the end. The latter might be more expensive in a SF context.
1952	*/
1953	PROFILE_FN(RTFileSeek(hFile1, iIteration < cbFile ? iIteration : iIteration % cbFile, RTFILE_SEEK_BEGIN, NULL),
1954	g_nsTestRun, "RTFileSeek/BEGIN");
1955	PROFILE_FN(RTFileSeek(hFile1, iIteration < cbFile ? -(int64_t)iIteration : -(int64_t)(iIteration % cbFile), RTFILE_SEEK_END, NULL),
1956	g_nsTestRun, "RTFileSeek/END");
1957
1958	}
1959
1960	#ifdef FSPERF_TEST_SENDFILE
1961
1962	/**
1963	* Send file thread arguments.
1964	*/
1965	typedef struct FSPERFSENDFILEARGS
1966	{
1967	uint64_t offFile;
1968	size_t cbSend;
1969	uint64_t cbSent;
1970	size_t cbBuf;
1971	uint8_t *pbBuf;
1972	uint8_t bFiller;
1973	bool fCheckBuf;
1974	RTSOCKET hSocket;
1975	uint64_t volatile tsThreadDone;
1976	} FSPERFSENDFILEARGS;
1977
1978	/** Thread receiving the bytes from a sendfile() call. */
1979	static DECLCALLBACK(int) fsPerfSendFileThread(RTTHREAD hSelf, void *pvUser)
1980	{
1981	FSPERFSENDFILEARGS pArgs = (FSPERFSENDFILEARGS )pvUser;
1982	int rc = VINF_SUCCESS;
1983
1984	if (pArgs->fCheckBuf)
1985	RTTestSetDefault(g_hTest, NULL);
1986
1987	uint64_t cbReceived = 0;
1988	while (cbReceived < pArgs->cbSent)
1989	{
1990	size_t const cbToRead = RT_MIN(pArgs->cbBuf, pArgs->cbSent - cbReceived);
1991	size_t cbActual = 0;
1992	RTTEST_CHECK_RC_BREAK(g_hTest, rc = RTTcpRead(pArgs->hSocket, pArgs->pbBuf, cbToRead, &cbActual), VINF_SUCCESS);
1993	RTTEST_CHECK_BREAK(g_hTest, cbActual != 0);
1994	RTTEST_CHECK(g_hTest, cbActual <= cbToRead);
1995	if (pArgs->fCheckBuf)
1996	fsPerfCheckReadBuf(__LINE__, pArgs->offFile + cbReceived, pArgs->pbBuf, cbActual, pArgs->bFiller);
1997	cbReceived += cbActual;
1998	}
1999
2000	pArgs->tsThreadDone = RTTimeNanoTS();
2001
2002	if (cbReceived == pArgs->cbSent && RT_SUCCESS(rc))
2003	{
2004	size_t cbActual = 0;
2005	rc = RTSocketReadNB(pArgs->hSocket, pArgs->pbBuf, 1, &cbActual);
2006	if (rc != VINF_SUCCESS && rc != VINF_TRY_AGAIN)
2007	RTTestFailed(g_hTest, "RTSocketReadNB(sendfile client socket) -> %Rrc; expected VINF_SUCCESS or VINF_TRY_AGAIN\n", rc);
2008	else if (cbActual != 0)
2009	RTTestFailed(g_hTest, "sendfile client socket still contains data when done!\n");
2010	}
2011
2012	RTTEST_CHECK_RC(g_hTest, RTSocketClose(pArgs->hSocket), VINF_SUCCESS);
2013	pArgs->hSocket = NIL_RTSOCKET;
2014
2015	RT_NOREF(hSelf);
2016	return rc;
2017	}
2018
2019
2020	static uint64_t fsPerfSendFileOne(FSPERFSENDFILEARGS *pArgs, RTFILE hFile1, uint64_t offFile,
2021	size_t cbSend, uint64_t cbSent, uint8_t bFiller, bool fCheckBuf, unsigned iLine)
2022	{
2023	/* Copy parameters to the argument structure: */
2024	pArgs->offFile = offFile;
2025	pArgs->cbSend = cbSend;
2026	pArgs->cbSent = cbSent;
2027	pArgs->bFiller = bFiller;
2028	pArgs->fCheckBuf = fCheckBuf;
2029
2030	/* Create a socket pair. */
2031	pArgs->hSocket = NIL_RTSOCKET;
2032	RTSOCKET hServer = NIL_RTSOCKET;
2033	RTTESTI_CHECK_RC_RET(RTTcpCreatePair(&hServer, &pArgs->hSocket, 0), VINF_SUCCESS, 0);
2034
2035	/* Create the receiving thread: */
2036	int rc;
2037	RTTHREAD hThread = NIL_RTTHREAD;
2038	RTTESTI_CHECK_RC(rc = RTThreadCreate(&hThread, fsPerfSendFileThread, pArgs, 0,
2039	RTTHREADTYPE_DEFAULT, RTTHREADFLAGS_WAITABLE, "sendfile"), VINF_SUCCESS);
2040	if (RT_SUCCESS(rc))
2041	{
2042	uint64_t const tsStart = RTTimeNanoTS();
2043
2044	# if defined(RT_OS_LINUX) \|\| defined(RT_OS_SOLARIS)
2045	/* SystemV sendfile: */
2046	loff_t offFileSf = pArgs->offFile;
2047	ssize_t cbActual = sendfile((int)RTSocketToNative(hServer), (int)RTFileToNative(hFile1), &offFileSf, pArgs->cbSend);
2048	int const iErr = errno;
2049	if (cbActual < 0)
2050	RTTestIFailed("%u: sendfile(socket, file, &%#X64, %#zx) failed (%zd): %d (%Rrc), offFileSf=%#RX64\n",
2051	iLine, pArgs->offFile, pArgs->cbSend, cbActual, iErr, RTErrConvertFromErrno(iErr), (uint64_t)offFileSf);
2052	else if ((uint64_t)cbActual != pArgs->cbSent)
2053	RTTestIFailed("%u: sendfile(socket, file, &%#RX64, %#zx): %#zx, expected %#RX64 (offFileSf=%#RX64)\n",
2054	iLine, pArgs->offFile, pArgs->cbSend, cbActual, pArgs->cbSent, (uint64_t)offFileSf);
2055	else if ((uint64_t)offFileSf != pArgs->offFile + pArgs->cbSent)
2056	RTTestIFailed("%u: sendfile(socket, file, &%#RX64, %#zx): %#zx; offFileSf=%#RX64, expected %#RX64\n",
2057	iLine, pArgs->offFile, pArgs->cbSend, cbActual, (uint64_t)offFileSf, pArgs->offFile + pArgs->cbSent);
2058	#else
2059	/* BSD sendfile: */
2060	# ifdef SF_SYNC
2061	int fSfFlags = SF_SYNC;
2062	# else
2063	int fSfFlags = 0;
2064	# endif
2065	off_t cbActual = pArgs->cbSend;
2066	rc = sendfile((int)RTFileToNative(hFile1), (int)RTSocketToNative(hServer),
2067	# ifdef RT_OS_DARWIN
2068	pArgs->offFile, &cbActual, NULL, fSfFlags);
2069	# else
2070	pArgs->offFile, cbActual, NULL, &cbActual, fSfFlags);
2071	# endif
2072	int const iErr = errno;
2073	if (rc != 0)
2074	RTTestIFailed("%u: sendfile(file, socket, %#RX64, %#zx, NULL,, %#x) failed (%d): %d (%Rrc), cbActual=%#RX64\n",
2075	iLine, pArgs->offFile, (size_t)pArgs->cbSend, rc, iErr, RTErrConvertFromErrno(iErr), (uint64_t)cbActual);
2076	if ((uint64_t)cbActual != pArgs->cbSent)
2077	RTTestIFailed("%u: sendfile(file, socket, %#RX64, %#zx, NULL,, %#x): cbActual=%#RX64, expected %#RX64 (rc=%d, errno=%d)\n",
2078	iLine, pArgs->offFile, (size_t)pArgs->cbSend, (uint64_t)cbActual, pArgs->cbSent, rc, iErr);
2079	# endif
2080	RTTESTI_CHECK_RC(RTSocketClose(hServer), VINF_SUCCESS);
2081	RTTESTI_CHECK_RC(RTThreadWait(hThread, 30 * RT_NS_1SEC, NULL), VINF_SUCCESS);
2082
2083	if (pArgs->tsThreadDone >= tsStart)
2084	return RT_MAX(pArgs->tsThreadDone - tsStart, 1);
2085	}
2086	return 0;
2087	}
2088
2089
2090	static void fsPerfSendFile(RTFILE hFile1, uint64_t cbFile)
2091	{
2092	RTTestISub("sendfile");
2093	# ifdef RT_OS_LINUX
2094	uint64_t const cbFileMax = RT_MIN(cbFile, UINT32_MAX - PAGE_OFFSET_MASK);
2095	# else
2096	uint64_t const cbFileMax = RT_MIN(cbFile, SSIZE_MAX - PAGE_OFFSET_MASK);
2097	# endif
2098	signal(SIGPIPE, SIG_IGN);
2099
2100	/*
2101	* Allocate a buffer.
2102	*/
2103	FSPERFSENDFILEARGS Args;
2104	Args.cbBuf = RT_MIN(cbFileMax, _16M);
2105	Args.pbBuf = (uint8_t *)RTMemAlloc(Args.cbBuf);
2106	while (!Args.pbBuf)
2107	{
2108	Args.cbBuf /= 8;
2109	RTTESTI_CHECK_RETV(Args.cbBuf >= _64K);
2110	Args.pbBuf = (uint8_t *)RTMemAlloc(Args.cbBuf);
2111	}
2112
2113	/*
2114	* First iteration with default buffer content.
2115	*/
2116	fsPerfSendFileOne(&Args, hFile1, 0, cbFileMax, cbFileMax, 0xf6, true /fCheckBuf/, __LINE__);
2117	if (cbFileMax == cbFile)
2118	fsPerfSendFileOne(&Args, hFile1, 63, cbFileMax, cbFileMax - 63, 0xf6, true /fCheckBuf/, __LINE__);
2119	else
2120	fsPerfSendFileOne(&Args, hFile1, 63, cbFileMax - 63, cbFileMax - 63, 0xf6, true /fCheckBuf/, __LINE__);
2121
2122	/*
2123	* Write a block using the regular API and then send it, checking that
2124	* the any caching that sendfile does is correctly updated.
2125	*/
2126	uint8_t bFiller = 0xf6;
2127	size_t cbToSend = RT_MIN(cbFileMax, Args.cbBuf);
2128	do
2129	{
2130	fsPerfSendFileOne(&Args, hFile1, 0, cbToSend, cbToSend, bFiller, true /fCheckBuf/, __LINE__); /* prime cache */
2131
2132	bFiller += 1;
2133	fsPerfFillWriteBuf(0, Args.pbBuf, cbToSend, bFiller);
2134	RTTESTI_CHECK_RC(RTFileWriteAt(hFile1, 0, Args.pbBuf, cbToSend, NULL), VINF_SUCCESS);
2135
2136	fsPerfSendFileOne(&Args, hFile1, 0, cbToSend, cbToSend, bFiller, true /fCheckBuf/, __LINE__);
2137
2138	cbToSend /= 2;
2139	} while (cbToSend >= PAGE_SIZE && ((unsigned)bFiller - 0xf7U) < 64);
2140
2141	/*
2142	* Restore buffer content
2143	*/
2144	bFiller = 0xf6;
2145	fsPerfFillWriteBuf(0, Args.pbBuf, Args.cbBuf, bFiller);
2146	RTTESTI_CHECK_RC(RTFileWriteAt(hFile1, 0, Args.pbBuf, Args.cbBuf, NULL), VINF_SUCCESS);
2147
2148	/*
2149	* Do 128 random sends.
2150	*/
2151	uint64_t const cbSmall = RT_MIN(_256K, cbFileMax / 16);
2152	for (uint32_t iTest = 0; iTest < 128; iTest++)
2153	{
2154	cbToSend = (size_t)RTRandU64Ex(1, iTest < 64 ? cbSmall : cbFileMax);
2155	uint64_t const offToSendFrom = RTRandU64Ex(0, cbFile - 1);
2156	uint64_t const cbSent = offToSendFrom + cbToSend <= cbFile ? cbToSend : cbFile - offToSendFrom;
2157
2158	fsPerfSendFileOne(&Args, hFile1, offToSendFrom, cbToSend, cbSent, bFiller, true /fCheckBuf/, __LINE__);
2159	}
2160
2161	/*
2162	* Benchmark it.
2163	*/
2164	uint32_t cIterations = 0;
2165	uint64_t nsElapsed = 0;
2166	for (;;)
2167	{
2168	uint64_t cNsThis = fsPerfSendFileOne(&Args, hFile1, 0, cbFileMax, cbFileMax, 0xf6, false /fCheckBuf/, __LINE__);
2169	nsElapsed += cNsThis;
2170	cIterations++;
2171	if (!cNsThis \|\| nsElapsed >= g_nsTestRun)
2172	break;
2173	}
2174	uint64_t cbTotal = cbFileMax * cIterations;
2175	RTTestIValue("latency", nsElapsed / cIterations, RTTESTUNIT_NS_PER_CALL);
2176	RTTestIValue("throughput", (uint64_t)(cbTotal / ((double)nsElapsed / RT_NS_1SEC)), RTTESTUNIT_BYTES_PER_SEC);
2177	RTTestIValue("calls", cIterations, RTTESTUNIT_CALLS);
2178	RTTestIValue("bytes", cbTotal, RTTESTUNIT_BYTES);
2179	if (g_fShowDuration)
2180	RTTestIValue("duration", nsElapsed, RTTESTUNIT_NS);
2181
2182	/*
2183	* Cleanup.
2184	*/
2185	RTMemFree(Args.pbBuf);
2186	}
2187
2188	#endif /* FSPERF_TEST_SENDFILE */
2189	#ifdef RT_OS_LINUX
2190
2191	#ifndef __NR_splice
2192	# if defined(RT_ARCH_AMD64)
2193	# define __NR_splice 275
2194	# elif defined(RT_ARCH_X86)
2195	# define __NR_splice 313
2196	# else
2197	# error "fix me"
2198	# endif
2199	#endif
2200
2201	/** FsPerf is built against ancient glibc, so make the splice syscall ourselves. */
2202	DECLINLINE(ssize_t) syscall_splice(int fdIn, loff_t poffIn, int fdOut, loff_t poffOut, size_t cbChunk, unsigned fFlags)
2203	{
2204	return syscall(__NR_splice, fdIn, poffIn, fdOut, poffOut, cbChunk, fFlags);
2205	}
2206
2207
2208	/**
2209	* Send file thread arguments.
2210	*/
2211	typedef struct FSPERFSPLICEARGS
2212	{
2213	uint64_t offFile;
2214	size_t cbSend;
2215	uint64_t cbSent;
2216	size_t cbBuf;
2217	uint8_t *pbBuf;
2218	uint8_t bFiller;
2219	bool fCheckBuf;
2220	uint32_t cCalls;
2221	RTPIPE hPipe;
2222	uint64_t volatile tsThreadDone;
2223	} FSPERFSPLICEARGS;
2224
2225
2226	/** Thread receiving the bytes from a splice() call. */
2227	static DECLCALLBACK(int) fsPerfSpliceToPipeThread(RTTHREAD hSelf, void *pvUser)
2228	{
2229	FSPERFSPLICEARGS pArgs = (FSPERFSPLICEARGS )pvUser;
2230	int rc = VINF_SUCCESS;
2231
2232	if (pArgs->fCheckBuf)
2233	RTTestSetDefault(g_hTest, NULL);
2234
2235	uint64_t cbReceived = 0;
2236	while (cbReceived < pArgs->cbSent)
2237	{
2238	size_t const cbToRead = RT_MIN(pArgs->cbBuf, pArgs->cbSent - cbReceived);
2239	size_t cbActual = 0;
2240	RTTEST_CHECK_RC_BREAK(g_hTest, rc = RTPipeReadBlocking(pArgs->hPipe, pArgs->pbBuf, cbToRead, &cbActual), VINF_SUCCESS);
2241	RTTEST_CHECK_BREAK(g_hTest, cbActual != 0);
2242	RTTEST_CHECK(g_hTest, cbActual <= cbToRead);
2243	if (pArgs->fCheckBuf)
2244	fsPerfCheckReadBuf(__LINE__, pArgs->offFile + cbReceived, pArgs->pbBuf, cbActual, pArgs->bFiller);
2245	cbReceived += cbActual;
2246	}
2247
2248	pArgs->tsThreadDone = RTTimeNanoTS();
2249
2250	if (cbReceived == pArgs->cbSent && RT_SUCCESS(rc))
2251	{
2252	size_t cbActual = 0;
2253	rc = RTPipeRead(pArgs->hPipe, pArgs->pbBuf, 1, &cbActual);
2254	if (rc != VINF_SUCCESS && rc != VINF_TRY_AGAIN && rc != VERR_BROKEN_PIPE)
2255	RTTestFailed(g_hTest, "RTPipeReadBlocking() -> %Rrc; expected VINF_SUCCESS or VINF_TRY_AGAIN\n", rc);
2256	else if (cbActual != 0)
2257	RTTestFailed(g_hTest, "splice read pipe still contains data when done!\n");
2258	}
2259
2260	RTTEST_CHECK_RC(g_hTest, RTPipeClose(pArgs->hPipe), VINF_SUCCESS);
2261	pArgs->hPipe = NIL_RTPIPE;
2262
2263	RT_NOREF(hSelf);
2264	return rc;
2265	}
2266
2267
2268	/** Sends hFile1 to a pipe via the Linux-specific splice() syscall. */
2269	static uint64_t fsPerfSpliceToPipeOne(FSPERFSPLICEARGS *pArgs, RTFILE hFile1, uint64_t offFile,
2270	size_t cbSend, uint64_t cbSent, uint8_t bFiller, bool fCheckBuf, unsigned iLine)
2271	{
2272	/* Copy parameters to the argument structure: */
2273	pArgs->offFile = offFile;
2274	pArgs->cbSend = cbSend;
2275	pArgs->cbSent = cbSent;
2276	pArgs->bFiller = bFiller;
2277	pArgs->fCheckBuf = fCheckBuf;
2278
2279	/* Create a socket pair. */
2280	pArgs->hPipe = NIL_RTPIPE;
2281	RTPIPE hPipeW = NIL_RTPIPE;
2282	RTTESTI_CHECK_RC_RET(RTPipeCreate(&pArgs->hPipe, &hPipeW, 0 /fFlags/), VINF_SUCCESS, 0);
2283
2284	/* Create the receiving thread: */
2285	int rc;
2286	RTTHREAD hThread = NIL_RTTHREAD;
2287	RTTESTI_CHECK_RC(rc = RTThreadCreate(&hThread, fsPerfSpliceToPipeThread, pArgs, 0,
2288	RTTHREADTYPE_DEFAULT, RTTHREADFLAGS_WAITABLE, "splicerecv"), VINF_SUCCESS);
2289	if (RT_SUCCESS(rc))
2290	{
2291	uint64_t const tsStart = RTTimeNanoTS();
2292	size_t cbLeft = cbSend;
2293	size_t cbTotal = 0;
2294	do
2295	{
2296	loff_t offFileIn = offFile;
2297	ssize_t cbActual = syscall_splice((int)RTFileToNative(hFile1), &offFileIn, (int)RTPipeToNative(hPipeW), NULL,
2298	cbLeft, 0 /fFlags/);
2299	int const iErr = errno;
2300	if (RT_UNLIKELY(cbActual < 0))
2301	{
2302	if (iErr == EPIPE && cbTotal == pArgs->cbSent)
2303	break;
2304	RTTestIFailed("%u: splice(file, &%#RX64, pipe, NULL, %#zx, 0) failed (%zd): %d (%Rrc), offFileIn=%#RX64\n",
2305	iLine, offFile, cbLeft, cbActual, iErr, RTErrConvertFromErrno(iErr), (uint64_t)offFileIn);
2306	break;
2307	}
2308	RTTESTI_CHECK_BREAK((uint64_t)cbActual <= cbLeft);
2309	if ((uint64_t)offFileIn != offFile + (uint64_t)cbActual)
2310	{
2311	RTTestIFailed("%u: splice(file, &%#RX64, pipe, NULL, %#zx, 0): %#zx; offFileIn=%#RX64, expected %#RX64\n",
2312	iLine, offFile, cbLeft, cbActual, (uint64_t)offFileIn, offFile + (uint64_t)cbActual);
2313	break;
2314	}
2315	if (cbActual > 0)
2316	{
2317	pArgs->cCalls++;
2318	offFile += (size_t)cbActual;
2319	cbTotal += (size_t)cbActual;
2320	cbLeft -= (size_t)cbActual;
2321	}
2322	else
2323	break;
2324	} while (cbLeft > 0);
2325
2326	if (cbTotal != pArgs->cbSent)
2327	RTTestIFailed("%u: spliced a total of %#zx bytes, expected %#zx!\n", iLine, cbTotal, pArgs->cbSent);
2328
2329	RTTESTI_CHECK_RC(RTPipeClose(hPipeW), VINF_SUCCESS);
2330	RTTESTI_CHECK_RC(RTThreadWait(hThread, 30 * RT_NS_1SEC, NULL), VINF_SUCCESS);
2331
2332	if (pArgs->tsThreadDone >= tsStart)
2333	return RT_MAX(pArgs->tsThreadDone - tsStart, 1);
2334	}
2335	return 0;
2336	}
2337
2338
2339	static void fsPerfSpliceToPipe(RTFILE hFile1, uint64_t cbFile)
2340	{
2341	RTTestISub("splice/to-pipe");
2342
2343	/*
2344	* splice was introduced in 2.6.17 according to the man-page.
2345	*/
2346	char szRelease[64];
2347	RTSystemQueryOSInfo(RTSYSOSINFO_RELEASE, szRelease, sizeof(szRelease));
2348	if (RTStrVersionCompare(szRelease, "2.6.17") < 0)
2349	{
2350	RTTestPassed(g_hTest, "too old kernel (%s)", szRelease);
2351	return;
2352	}
2353
2354	uint64_t const cbFileMax = RT_MIN(cbFile, UINT32_MAX - PAGE_OFFSET_MASK);
2355	signal(SIGPIPE, SIG_IGN);
2356
2357	/*
2358	* Allocate a buffer.
2359	*/
2360	FSPERFSPLICEARGS Args;
2361	Args.cbBuf = RT_MIN(cbFileMax, _16M);
2362	Args.pbBuf = (uint8_t *)RTMemAlloc(Args.cbBuf);
2363	while (!Args.pbBuf)
2364	{
2365	Args.cbBuf /= 8;
2366	RTTESTI_CHECK_RETV(Args.cbBuf >= _64K);
2367	Args.pbBuf = (uint8_t *)RTMemAlloc(Args.cbBuf);
2368	}
2369
2370	/*
2371	* First iteration with default buffer content.
2372	*/
2373	fsPerfSpliceToPipeOne(&Args, hFile1, 0, cbFileMax, cbFileMax, 0xf6, true /fCheckBuf/, __LINE__);
2374	if (cbFileMax == cbFile)
2375	fsPerfSpliceToPipeOne(&Args, hFile1, 63, cbFileMax, cbFileMax - 63, 0xf6, true /fCheckBuf/, __LINE__);
2376	else
2377	fsPerfSpliceToPipeOne(&Args, hFile1, 63, cbFileMax - 63, cbFileMax - 63, 0xf6, true /fCheckBuf/, __LINE__);
2378
2379	/*
2380	* Write a block using the regular API and then send it, checking that
2381	* the any caching that sendfile does is correctly updated.
2382	*/
2383	uint8_t bFiller = 0xf6;
2384	size_t cbToSend = RT_MIN(cbFileMax, Args.cbBuf);
2385	do
2386	{
2387	fsPerfSpliceToPipeOne(&Args, hFile1, 0, cbToSend, cbToSend, bFiller, true /fCheckBuf/, __LINE__); /* prime cache */
2388
2389	bFiller += 1;
2390	fsPerfFillWriteBuf(0, Args.pbBuf, cbToSend, bFiller);
2391	RTTESTI_CHECK_RC(RTFileWriteAt(hFile1, 0, Args.pbBuf, cbToSend, NULL), VINF_SUCCESS);
2392
2393	fsPerfSpliceToPipeOne(&Args, hFile1, 0, cbToSend, cbToSend, bFiller, true /fCheckBuf/, __LINE__);
2394
2395	cbToSend /= 2;
2396	} while (cbToSend >= PAGE_SIZE && ((unsigned)bFiller - 0xf7U) < 64);
2397
2398	/*
2399	* Restore buffer content
2400	*/
2401	bFiller = 0xf6;
2402	fsPerfFillWriteBuf(0, Args.pbBuf, Args.cbBuf, bFiller);
2403	RTTESTI_CHECK_RC(RTFileWriteAt(hFile1, 0, Args.pbBuf, Args.cbBuf, NULL), VINF_SUCCESS);
2404
2405	/*
2406	* Do 128 random sends.
2407	*/
2408	uint64_t const cbSmall = RT_MIN(_256K, cbFileMax / 16);
2409	for (uint32_t iTest = 0; iTest < 128; iTest++)
2410	{
2411	cbToSend = (size_t)RTRandU64Ex(1, iTest < 64 ? cbSmall : cbFileMax);
2412	uint64_t const offToSendFrom = RTRandU64Ex(0, cbFile - 1);
2413	uint64_t const cbSent = offToSendFrom + cbToSend <= cbFile ? cbToSend : cbFile - offToSendFrom;
2414
2415	fsPerfSpliceToPipeOne(&Args, hFile1, offToSendFrom, cbToSend, cbSent, bFiller, true /fCheckBuf/, __LINE__);
2416	}
2417
2418	/*
2419	* Benchmark it.
2420	*/
2421	Args.cCalls = 0;
2422	uint32_t cIterations = 0;
2423	uint64_t nsElapsed = 0;
2424	for (;;)
2425	{
2426	uint64_t cNsThis = fsPerfSpliceToPipeOne(&Args, hFile1, 0, cbFileMax, cbFileMax, 0xf6, false /fCheckBuf/, __LINE__);
2427	nsElapsed += cNsThis;
2428	cIterations++;
2429	if (!cNsThis \|\| nsElapsed >= g_nsTestRun)
2430	break;
2431	}
2432	uint64_t cbTotal = cbFileMax * cIterations;
2433	RTTestIValue("latency", nsElapsed / Args.cCalls, RTTESTUNIT_NS_PER_CALL);
2434	RTTestIValue("throughput", (uint64_t)(cbTotal / ((double)nsElapsed / RT_NS_1SEC)), RTTESTUNIT_BYTES_PER_SEC);
2435	RTTestIValue("calls", Args.cCalls, RTTESTUNIT_CALLS);
2436	RTTestIValue("bytes/call", cbTotal / Args.cCalls, RTTESTUNIT_BYTES);
2437	RTTestIValue("iterations", cIterations, RTTESTUNIT_NONE);
2438	RTTestIValue("bytes", cbTotal, RTTESTUNIT_BYTES);
2439	if (g_fShowDuration)
2440	RTTestIValue("duration", nsElapsed, RTTESTUNIT_NS);
2441
2442	/*
2443	* Cleanup.
2444	*/
2445	RTMemFree(Args.pbBuf);
2446	}
2447
2448
2449	/** Thread sending the bytes to a splice() call. */
2450	static DECLCALLBACK(int) fsPerfSpliceToFileThread(RTTHREAD hSelf, void *pvUser)
2451	{
2452	FSPERFSPLICEARGS pArgs = (FSPERFSPLICEARGS )pvUser;
2453	int rc = VINF_SUCCESS;
2454
2455	uint64_t offFile = pArgs->offFile;
2456	uint64_t cbTotalSent = 0;
2457	while (cbTotalSent < pArgs->cbSent)
2458	{
2459	size_t const cbToSend = RT_MIN(pArgs->cbBuf, pArgs->cbSent - cbTotalSent);
2460	fsPerfFillWriteBuf(offFile, pArgs->pbBuf, cbToSend, pArgs->bFiller);
2461	RTTEST_CHECK_RC_BREAK(g_hTest, rc = RTPipeWriteBlocking(pArgs->hPipe, pArgs->pbBuf, cbToSend, NULL), VINF_SUCCESS);
2462	offFile += cbToSend;
2463	cbTotalSent += cbToSend;
2464	}
2465
2466	pArgs->tsThreadDone = RTTimeNanoTS();
2467
2468	RTTEST_CHECK_RC(g_hTest, RTPipeClose(pArgs->hPipe), VINF_SUCCESS);
2469	pArgs->hPipe = NIL_RTPIPE;
2470
2471	RT_NOREF(hSelf);
2472	return rc;
2473	}
2474
2475
2476	/** Fill hFile1 via a pipe and the Linux-specific splice() syscall. */
2477	static uint64_t fsPerfSpliceToFileOne(FSPERFSPLICEARGS *pArgs, RTFILE hFile1, uint64_t offFile,
2478	size_t cbSend, uint64_t cbSent, uint8_t bFiller, bool fCheckFile, unsigned iLine)
2479	{
2480	/* Copy parameters to the argument structure: */
2481	pArgs->offFile = offFile;
2482	pArgs->cbSend = cbSend;
2483	pArgs->cbSent = cbSent;
2484	pArgs->bFiller = bFiller;
2485	pArgs->fCheckBuf = false;
2486
2487	/* Create a socket pair. */
2488	pArgs->hPipe = NIL_RTPIPE;
2489	RTPIPE hPipeR = NIL_RTPIPE;
2490	RTTESTI_CHECK_RC_RET(RTPipeCreate(&hPipeR, &pArgs->hPipe, 0 /fFlags/), VINF_SUCCESS, 0);
2491
2492	/* Create the receiving thread: */
2493	int rc;
2494	RTTHREAD hThread = NIL_RTTHREAD;
2495	RTTESTI_CHECK_RC(rc = RTThreadCreate(&hThread, fsPerfSpliceToFileThread, pArgs, 0,
2496	RTTHREADTYPE_DEFAULT, RTTHREADFLAGS_WAITABLE, "splicerecv"), VINF_SUCCESS);
2497	if (RT_SUCCESS(rc))
2498	{
2499	/*
2500	* Do the splicing.
2501	*/
2502	uint64_t const tsStart = RTTimeNanoTS();
2503	size_t cbLeft = cbSend;
2504	size_t cbTotal = 0;
2505	do
2506	{
2507	loff_t offFileOut = offFile;
2508	ssize_t cbActual = syscall_splice((int)RTPipeToNative(hPipeR), NULL, (int)RTFileToNative(hFile1), &offFileOut,
2509	cbLeft, 0 /fFlags/);
2510	int const iErr = errno;
2511	if (RT_UNLIKELY(cbActual < 0))
2512	{
2513	RTTestIFailed("%u: splice(pipe, NULL, file, &%#RX64, %#zx, 0) failed (%zd): %d (%Rrc), offFileOut=%#RX64\n",
2514	iLine, offFile, cbLeft, cbActual, iErr, RTErrConvertFromErrno(iErr), (uint64_t)offFileOut);
2515	break;
2516	}
2517	RTTESTI_CHECK_BREAK((uint64_t)cbActual <= cbLeft);
2518	if ((uint64_t)offFileOut != offFile + (uint64_t)cbActual)
2519	{
2520	RTTestIFailed("%u: splice(pipe, NULL, file, &%#RX64, %#zx, 0): %#zx; offFileOut=%#RX64, expected %#RX64\n",
2521	iLine, offFile, cbLeft, cbActual, (uint64_t)offFileOut, offFile + (uint64_t)cbActual);
2522	break;
2523	}
2524	if (cbActual > 0)
2525	{
2526	pArgs->cCalls++;
2527	offFile += (size_t)cbActual;
2528	cbTotal += (size_t)cbActual;
2529	cbLeft -= (size_t)cbActual;
2530	}
2531	else
2532	break;
2533	} while (cbLeft > 0);
2534	uint64_t const nsElapsed = RTTimeNanoTS() - tsStart;
2535
2536	if (cbTotal != pArgs->cbSent)
2537	RTTestIFailed("%u: spliced a total of %#zx bytes, expected %#zx!\n", iLine, cbTotal, pArgs->cbSent);
2538
2539	RTTESTI_CHECK_RC(RTPipeClose(hPipeR), VINF_SUCCESS);
2540	RTTESTI_CHECK_RC(RTThreadWait(hThread, 30 * RT_NS_1SEC, NULL), VINF_SUCCESS);
2541
2542	/* Check the file content. */
2543	if (fCheckFile && cbTotal == pArgs->cbSent)
2544	{
2545	offFile = pArgs->offFile;
2546	cbLeft = cbSent;
2547	while (cbLeft > 0)
2548	{
2549	size_t cbToRead = RT_MIN(cbLeft, pArgs->cbBuf);
2550	RTTESTI_CHECK_RC_BREAK(RTFileReadAt(hFile1, offFile, pArgs->pbBuf, cbToRead, NULL), VINF_SUCCESS);
2551	if (!fsPerfCheckReadBuf(iLine, offFile, pArgs->pbBuf, cbToRead, pArgs->bFiller))
2552	break;
2553	offFile += cbToRead;
2554	cbLeft -= cbToRead;
2555	}
2556	}
2557	return nsElapsed;
2558	}
2559	return 0;
2560	}
2561
2562
2563	static void fsPerfSpliceToFile(RTFILE hFile1, uint64_t cbFile)
2564	{
2565	RTTestISub("splice/to-file");
2566
2567	/*
2568	* splice was introduced in 2.6.17 according to the man-page.
2569	*/
2570	char szRelease[64];
2571	RTSystemQueryOSInfo(RTSYSOSINFO_RELEASE, szRelease, sizeof(szRelease));
2572	if (RTStrVersionCompare(szRelease, "2.6.17") < 0)
2573	{
2574	RTTestPassed(g_hTest, "too old kernel (%s)", szRelease);
2575	return;
2576	}
2577
2578	uint64_t const cbFileMax = RT_MIN(cbFile, UINT32_MAX - PAGE_OFFSET_MASK);
2579	signal(SIGPIPE, SIG_IGN);
2580
2581	/*
2582	* Allocate a buffer.
2583	*/
2584	FSPERFSPLICEARGS Args;
2585	Args.cbBuf = RT_MIN(cbFileMax, _16M);
2586	Args.pbBuf = (uint8_t *)RTMemAlloc(Args.cbBuf);
2587	while (!Args.pbBuf)
2588	{
2589	Args.cbBuf /= 8;
2590	RTTESTI_CHECK_RETV(Args.cbBuf >= _64K);
2591	Args.pbBuf = (uint8_t *)RTMemAlloc(Args.cbBuf);
2592	}
2593
2594	/*
2595	* Do the whole file.
2596	*/
2597	uint8_t bFiller = 0x76;
2598	fsPerfSpliceToFileOne(&Args, hFile1, 0, cbFileMax, cbFileMax, bFiller, true /fCheckFile/, __LINE__);
2599
2600	/*
2601	* Do 64 random chunks (this is slower).
2602	*/
2603	uint64_t const cbSmall = RT_MIN(_256K, cbFileMax / 16);
2604	for (uint32_t iTest = 0; iTest < 64; iTest++)
2605	{
2606	size_t const cbToWrite = (size_t)RTRandU64Ex(1, iTest < 24 ? cbSmall : cbFileMax);
2607	uint64_t const offToWriteAt = RTRandU64Ex(0, cbFile - cbToWrite);
2608	uint64_t const cbTryRead = cbToWrite + (iTest & 1 ? RTRandU32Ex(0, _64K) : 0);
2609
2610	bFiller++;
2611	fsPerfSpliceToFileOne(&Args, hFile1, offToWriteAt, cbTryRead, cbToWrite, bFiller, true /fCheckFile/, __LINE__);
2612	}
2613
2614	/*
2615	* Benchmark it.
2616	*/
2617	Args.cCalls = 0;
2618	uint32_t cIterations = 0;
2619	uint64_t nsElapsed = 0;
2620	for (;;)
2621	{
2622	uint64_t cNsThis = fsPerfSpliceToFileOne(&Args, hFile1, 0, cbFileMax, cbFileMax, 0xf6, false /fCheckBuf/, __LINE__);
2623	nsElapsed += cNsThis;
2624	cIterations++;
2625	if (!cNsThis \|\| nsElapsed >= g_nsTestRun)
2626	break;
2627	}
2628	uint64_t cbTotal = cbFileMax * cIterations;
2629	RTTestIValue("latency", nsElapsed / Args.cCalls, RTTESTUNIT_NS_PER_CALL);
2630	RTTestIValue("throughput", (uint64_t)(cbTotal / ((double)nsElapsed / RT_NS_1SEC)), RTTESTUNIT_BYTES_PER_SEC);
2631	RTTestIValue("calls", Args.cCalls, RTTESTUNIT_CALLS);
2632	RTTestIValue("bytes/call", cbTotal / Args.cCalls, RTTESTUNIT_BYTES);
2633	RTTestIValue("iterations", cIterations, RTTESTUNIT_NONE);
2634	RTTestIValue("bytes", cbTotal, RTTESTUNIT_BYTES);
2635	if (g_fShowDuration)
2636	RTTestIValue("duration", nsElapsed, RTTESTUNIT_NS);
2637
2638	/*
2639	* Cleanup.
2640	*/
2641	RTMemFree(Args.pbBuf);
2642	}
2643
2644	#endif /* RT_OS_LINUX */
2645
2646	/** For fsPerfIoRead and fsPerfIoWrite. */
2647	#define PROFILE_IO_FN(a_szOperation, a_fnCall) \
2648	do \
2649	{ \
2650	RTTESTI_CHECK_RC_RETV(RTFileSeek(hFile1, 0, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS); \
2651	uint64_t offActual = 0; \
2652	uint32_t cSeeks = 0; \
2653	\
2654	/* Estimate how many iterations we need to fill up the given timeslot: */ \
2655	fsPerfYield(); \
2656	uint64_t nsStart = RTTimeNanoTS(); \
2657	uint64_t ns; \
2658	do \
2659	ns = RTTimeNanoTS(); \
2660	while (ns == nsStart); \
2661	nsStart = ns; \
2662	\
2663	uint64_t iIteration = 0; \
2664	do \
2665	{ \
2666	RTTESTI_CHECK_RC(a_fnCall, VINF_SUCCESS); \
2667	iIteration++; \
2668	ns = RTTimeNanoTS() - nsStart; \
2669	} while (ns < RT_NS_10MS); \
2670	ns /= iIteration; \
2671	if (ns > g_nsPerNanoTSCall + 32) \
2672	ns -= g_nsPerNanoTSCall; \
2673	uint64_t cIterations = g_nsTestRun / ns; \
2674	if (cIterations < 2) \
2675	cIterations = 2; \
2676	else if (cIterations & 1) \
2677	cIterations++; \
2678	\
2679	/* Do the actual profiling: */ \
2680	cSeeks = 0; \
2681	iIteration = 0; \
2682	fsPerfYield(); \
2683	nsStart = RTTimeNanoTS(); \
2684	for (uint32_t iAdjust = 0; iAdjust < 4; iAdjust++) \
2685	{ \
2686	for (; iIteration < cIterations; iIteration++)\
2687	RTTESTI_CHECK_RC(a_fnCall, VINF_SUCCESS); \
2688	ns = RTTimeNanoTS() - nsStart;\
2689	if (ns >= g_nsTestRun - (g_nsTestRun / 10)) \
2690	break; \
2691	cIterations += cIterations / 4; \
2692	if (cIterations & 1) \
2693	cIterations++; \
2694	nsStart += g_nsPerNanoTSCall; \
2695	} \
2696	RTTestIValueF(ns / iIteration, \
2697	RTTESTUNIT_NS_PER_OCCURRENCE, a_szOperation "/seq/%RU32 latency", cbBlock); \
2698	RTTestIValueF((uint64_t)((uint64_t)iIteration * cbBlock / ((double)ns / RT_NS_1SEC)), \
2699	RTTESTUNIT_BYTES_PER_SEC, a_szOperation "/seq/%RU32 throughput", cbBlock); \
2700	RTTestIValueF(iIteration, \
2701	RTTESTUNIT_CALLS, a_szOperation "/seq/%RU32 calls", cbBlock); \
2702	RTTestIValueF((uint64_t)iIteration * cbBlock, \
2703	RTTESTUNIT_BYTES, a_szOperation "/seq/%RU32 bytes", cbBlock); \
2704	RTTestIValueF(cSeeks, \
2705	RTTESTUNIT_OCCURRENCES, a_szOperation "/seq/%RU32 seeks", cbBlock); \
2706	if (g_fShowDuration) \
2707	RTTestIValueF(ns, RTTESTUNIT_NS, a_szOperation "/seq/%RU32 duration", cbBlock); \
2708	} while (0)
2709
2710
2711	/**
2712	* One RTFileRead profiling iteration.
2713	*/
2714	DECL_FORCE_INLINE(int) fsPerfIoReadWorker(RTFILE hFile1, uint64_t cbFile, uint32_t cbBlock, uint8_t *pbBlock,
2715	uint64_t poffActual, uint32_t pcSeeks)
2716	{
2717	/* Do we need to seek back to the start? */
2718	if (*poffActual + cbBlock <= cbFile)
2719	{ /* likely */ }
2720	else
2721	{
2722	RTTESTI_CHECK_RC_RET(RTFileSeek(hFile1, 0, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS, rcCheck);
2723	*pcSeeks += 1;
2724	*poffActual = 0;
2725	}
2726
2727	size_t cbActuallyRead = 0;
2728	RTTESTI_CHECK_RC_RET(RTFileRead(hFile1, pbBlock, cbBlock, &cbActuallyRead), VINF_SUCCESS, rcCheck);
2729	if (cbActuallyRead == cbBlock)
2730	{
2731	*poffActual += cbActuallyRead;
2732	return VINF_SUCCESS;
2733	}
2734	RTTestIFailed("RTFileRead at %#RX64 returned just %#x bytes, expected %#x", *poffActual, cbActuallyRead, cbBlock);
2735	*poffActual += cbActuallyRead;
2736	return VERR_READ_ERROR;
2737	}
2738
2739
2740	void fsPerfIoReadBlockSize(RTFILE hFile1, uint64_t cbFile, uint32_t cbBlock)
2741	{
2742	RTTestISubF("IO - Sequential read %RU32", cbBlock);
2743	if (cbBlock <= cbFile)
2744	{
2745
2746	uint8_t pbBuf = (uint8_t )RTMemPageAlloc(cbBlock);
2747	if (pbBuf)
2748	{
2749	memset(pbBuf, 0xf7, cbBlock);
2750	PROFILE_IO_FN("RTFileRead", fsPerfIoReadWorker(hFile1, cbFile, cbBlock, pbBuf, &offActual, &cSeeks));
2751	RTMemPageFree(pbBuf, cbBlock);
2752	}
2753	else
2754	RTTestSkipped(g_hTest, "insufficient (virtual) memory available");
2755	}
2756	else
2757	RTTestSkipped(g_hTest, "test file too small");
2758	}
2759
2760
2761	/** preadv is too new to be useful, so we use the readv api via this wrapper. */
2762	DECLINLINE(int) myFileSgReadAt(RTFILE hFile, RTFOFF off, PRTSGBUF pSgBuf, size_t cbToRead, size_t *pcbRead)
2763	{
2764	int rc = RTFileSeek(hFile, off, RTFILE_SEEK_BEGIN, NULL);
2765	if (RT_SUCCESS(rc))
2766	rc = RTFileSgRead(hFile, pSgBuf, cbToRead, pcbRead);
2767	return rc;
2768	}
2769
2770
2771	void fsPerfRead(RTFILE hFile1, RTFILE hFileNoCache, uint64_t cbFile)
2772	{
2773	RTTestISubF("IO - RTFileRead");
2774
2775	/*
2776	* Allocate a big buffer we can play around with. Min size is 1MB.
2777	*/
2778	size_t cbBuf = cbFile < _64M ? (size_t)cbFile : _64M;
2779	uint8_t pbBuf = (uint8_t )RTMemPageAlloc(cbBuf);
2780	while (!pbBuf)
2781	{
2782	cbBuf /= 2;
2783	RTTESTI_CHECK_RETV(cbBuf >= _1M);
2784	pbBuf = (uint8_t *)RTMemPageAlloc(_32M);
2785	}
2786
2787	#if 1
2788	/*
2789	* Start at the beginning and read the full buffer in random small chunks, thereby
2790	* checking that unaligned buffer addresses, size and file offsets work fine.
2791	*/
2792	struct
2793	{
2794	uint64_t offFile;
2795	uint32_t cbMax;
2796	} aRuns[] = { { 0, 127 }, { cbFile - cbBuf, UINT32_MAX }, { 0, UINT32_MAX -1 }};
2797	for (uint32_t i = 0; i < RT_ELEMENTS(aRuns); i++)
2798	{
2799	memset(pbBuf, 0x55, cbBuf);
2800	RTTESTI_CHECK_RC(RTFileSeek(hFile1, aRuns[i].offFile, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS);
2801	for (size_t offBuf = 0; offBuf < cbBuf; )
2802	{
2803	uint32_t const cbLeft = (uint32_t)(cbBuf - offBuf);
2804	uint32_t const cbToRead = aRuns[i].cbMax < UINT32_MAX / 2 ? RTRandU32Ex(1, RT_MIN(aRuns[i].cbMax, cbLeft))
2805	: aRuns[i].cbMax == UINT32_MAX ? RTRandU32Ex(RT_MAX(cbLeft / 4, 1), cbLeft)
2806	: RTRandU32Ex(cbLeft >= _8K ? _8K : 1, RT_MIN(_1M, cbLeft));
2807	size_t cbActual = 0;
2808	RTTESTI_CHECK_RC(RTFileRead(hFile1, &pbBuf[offBuf], cbToRead, &cbActual), VINF_SUCCESS);
2809	if (cbActual == cbToRead)
2810	{
2811	offBuf += cbActual;
2812	RTTESTI_CHECK_MSG(RTFileTell(hFile1) == aRuns[i].offFile + offBuf,
2813	("%#RX64, expected %#RX64\n", RTFileTell(hFile1), aRuns[i].offFile + offBuf));
2814	}
2815	else
2816	{
2817	RTTestIFailed("Attempting to read %#x bytes at %#zx, only got %#x bytes back! (cbLeft=%#x cbBuf=%#zx)\n",
2818	cbToRead, offBuf, cbActual, cbLeft, cbBuf);
2819	if (cbActual)
2820	offBuf += cbActual;
2821	else
2822	pbBuf[offBuf++] = 0x11;
2823	}
2824	}
2825	fsPerfCheckReadBuf(__LINE__, aRuns[i].offFile, pbBuf, cbBuf);
2826	}
2827
2828	/*
2829	* Test reading beyond the end of the file.
2830	*/
2831	size_t const acbMax[] = { cbBuf, _64K, _16K, _4K, 256 };
2832	uint32_t const aoffFromEos[] =
2833	{ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 32, 63, 64, 127, 128, 255, 254, 256, 1023, 1024, 2048,
2834	4092, 4093, 4094, 4095, 4096, 4097, 4098, 4099, 4100, 8192, 16384, 32767, 32768, 32769, 65535, 65536, _1M - 1
2835	};
2836	for (unsigned iMax = 0; iMax < RT_ELEMENTS(acbMax); iMax++)
2837	{
2838	size_t const cbMaxRead = acbMax[iMax];
2839	for (uint32_t iOffFromEos = 0; iOffFromEos < RT_ELEMENTS(aoffFromEos); iOffFromEos++)
2840	{
2841	uint32_t off = aoffFromEos[iOffFromEos];
2842	if (off >= cbMaxRead)
2843	continue;
2844	RTTESTI_CHECK_RC(RTFileSeek(hFile1, cbFile - off, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS);
2845	size_t cbActual = ~(size_t)0;
2846	RTTESTI_CHECK_RC(RTFileRead(hFile1, pbBuf, cbMaxRead, &cbActual), VINF_SUCCESS);
2847	RTTESTI_CHECK(cbActual == off);
2848
2849	RTTESTI_CHECK_RC(RTFileSeek(hFile1, cbFile - off, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS);
2850	cbActual = ~(size_t)0;
2851	RTTESTI_CHECK_RC(RTFileRead(hFile1, pbBuf, off, &cbActual), VINF_SUCCESS);
2852	RTTESTI_CHECK_MSG(cbActual == off, ("%#zx vs %#zx\n", cbActual, off));
2853
2854	cbActual = ~(size_t)0;
2855	RTTESTI_CHECK_RC(RTFileRead(hFile1, pbBuf, 1, &cbActual), VINF_SUCCESS);
2856	RTTESTI_CHECK_MSG(cbActual == 0, ("cbActual=%zu\n", cbActual));
2857
2858	RTTESTI_CHECK_RC(RTFileRead(hFile1, pbBuf, cbMaxRead, NULL), VERR_EOF);
2859
2860	/* Repeat using native APIs in case IPRT or other layers hid status codes: */
2861	#if defined(RT_OS_OS2) \|\| defined(RT_OS_WINDOWS)
2862	RTTESTI_CHECK_RC(RTFileSeek(hFile1, cbFile - off, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS);
2863	# ifdef RT_OS_OS2
2864	ULONG cbActual2 = ~(ULONG)0;
2865	APIRET orc = DosRead((HFILE)RTFileToNative(hFile1), pbBuf, cbMaxRead, &cbActual2);
2866	RTTESTI_CHECK_MSG(orc == NO_ERROR, ("orc=%u, expected 0\n", orc));
2867	RTTESTI_CHECK_MSG(cbActual2 == off, ("%#x vs %#x\n", cbActual2, off));
2868	# else
2869	IO_STATUS_BLOCK Ios = RTNT_IO_STATUS_BLOCK_INITIALIZER;
2870	NTSTATUS rcNt = NtReadFile((HANDLE)RTFileToNative(hFile1), NULL /hEvent/, NULL /ApcRoutine/, NULL /ApcContext/,
2871	&Ios, pbBuf, (ULONG)cbMaxRead, NULL /poffFile/, NULL /Key/);
2872	if (off == 0)
2873	RTTESTI_CHECK_MSG(rcNt == STATUS_END_OF_FILE, ("rcNt=%#x, expected %#x\n", rcNt, STATUS_END_OF_FILE));
2874	else
2875	RTTESTI_CHECK_MSG(rcNt == STATUS_SUCCESS, ("rcNt=%#x, expected 0 (off=%#x cbMaxRead=%#zx)\n", rcNt, off, cbMaxRead));
2876	RTTESTI_CHECK_MSG(Ios.Information == off, ("%#zx vs %#x\n", Ios.Information, off));
2877	# endif
2878
2879	# ifdef RT_OS_OS2
2880	cbActual2 = ~(ULONG)0;
2881	orc = DosRead((HFILE)RTFileToNative(hFile1), pbBuf, 1, &cbActual2);
2882	RTTESTI_CHECK_MSG(orc == NO_ERROR, ("orc=%u, expected 0\n", orc));
2883	RTTESTI_CHECK_MSG(cbActual2 == 0, ("cbActual2=%u\n", cbActual2));
2884	# else
2885	RTNT_IO_STATUS_BLOCK_REINIT(&Ios);
2886	rcNt = NtReadFile((HANDLE)RTFileToNative(hFile1), NULL /hEvent/, NULL /ApcRoutine/, NULL /ApcContext/,
2887	&Ios, pbBuf, 1, NULL /poffFile/, NULL /Key/);
2888	RTTESTI_CHECK_MSG(rcNt == STATUS_END_OF_FILE, ("rcNt=%#x, expected %#x\n", rcNt, STATUS_END_OF_FILE));
2889	# endif
2890
2891	#endif
2892	}
2893	}
2894
2895	/*
2896	* Test reading beyond end of the file.
2897	*/
2898	for (unsigned iMax = 0; iMax < RT_ELEMENTS(acbMax); iMax++)
2899	{
2900	size_t const cbMaxRead = acbMax[iMax];
2901	for (uint32_t off = 0; off < 256; off++)
2902	{
2903	RTTESTI_CHECK_RC(RTFileSeek(hFile1, cbFile + off, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS);
2904	size_t cbActual = ~(size_t)0;
2905	RTTESTI_CHECK_RC(RTFileRead(hFile1, pbBuf, cbMaxRead, &cbActual), VINF_SUCCESS);
2906	RTTESTI_CHECK(cbActual == 0);
2907
2908	RTTESTI_CHECK_RC(RTFileRead(hFile1, pbBuf, cbMaxRead, NULL), VERR_EOF);
2909
2910	/* Repeat using native APIs in case IPRT or other layers hid status codes: */
2911	#if defined(RT_OS_OS2) \|\| defined(RT_OS_WINDOWS)
2912	RTTESTI_CHECK_RC(RTFileSeek(hFile1, cbFile + off, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS);
2913	# ifdef RT_OS_OS2
2914	ULONG cbActual2 = ~(ULONG)0;
2915	APIRET orc = DosRead((HFILE)RTFileToNative(hFile1), pbBuf, cbMaxRead, &cbActual2);
2916	RTTESTI_CHECK_MSG(orc == NO_ERROR, ("orc=%u, expected 0\n", orc));
2917	RTTESTI_CHECK_MSG(cbActual2 == 0, ("%#x vs %#x\n", cbActual2, off));
2918	# else
2919	IO_STATUS_BLOCK Ios = RTNT_IO_STATUS_BLOCK_INITIALIZER;
2920	NTSTATUS rcNt = NtReadFile((HANDLE)RTFileToNative(hFile1), NULL /hEvent/, NULL /ApcRoutine/, NULL /ApcContext/,
2921	&Ios, pbBuf, (ULONG)cbMaxRead, NULL /poffFile/, NULL /Key/);
2922	RTTESTI_CHECK_MSG(rcNt == STATUS_END_OF_FILE, ("rcNt=%#x, expected %#x\n", rcNt, STATUS_END_OF_FILE));
2923	# endif
2924	#endif
2925	}
2926	}
2927
2928	/*
2929	* Do uncached access, must be page aligned.
2930	*/
2931	uint32_t cbPage = PAGE_SIZE;
2932	memset(pbBuf, 0x66, cbBuf);
2933	if (!g_fIgnoreNoCache \|\| hFileNoCache != NIL_RTFILE)
2934	{
2935	RTTESTI_CHECK_RC(RTFileSeek(hFileNoCache, 0, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS);
2936	for (size_t offBuf = 0; offBuf < cbBuf; )
2937	{
2938	uint32_t const cPagesLeft = (uint32_t)((cbBuf - offBuf) / cbPage);
2939	uint32_t const cPagesToRead = RTRandU32Ex(1, cPagesLeft);
2940	size_t const cbToRead = cPagesToRead * (size_t)cbPage;
2941	size_t cbActual = 0;
2942	RTTESTI_CHECK_RC(RTFileRead(hFileNoCache, &pbBuf[offBuf], cbToRead, &cbActual), VINF_SUCCESS);
2943	if (cbActual == cbToRead)
2944	offBuf += cbActual;
2945	else
2946	{
2947	RTTestIFailed("Attempting to read %#zx bytes at %#zx, only got %#x bytes back!\n", cbToRead, offBuf, cbActual);
2948	if (cbActual)
2949	offBuf += cbActual;
2950	else
2951	{
2952	memset(&pbBuf[offBuf], 0x11, cbPage);
2953	offBuf += cbPage;
2954	}
2955	}
2956	}
2957	fsPerfCheckReadBuf(__LINE__, 0, pbBuf, cbBuf);
2958	}
2959
2960	/*
2961	* Check reading zero bytes at the end of the file.
2962	* Requires native call because RTFileWrite doesn't call kernel on zero byte reads.
2963	*/
2964	RTTESTI_CHECK_RC(RTFileSeek(hFile1, 0, RTFILE_SEEK_END, NULL), VINF_SUCCESS);
2965	# ifdef RT_OS_WINDOWS
2966	IO_STATUS_BLOCK Ios = RTNT_IO_STATUS_BLOCK_INITIALIZER;
2967	NTSTATUS rcNt = NtReadFile((HANDLE)RTFileToNative(hFile1), NULL, NULL, NULL, &Ios, pbBuf, 0, NULL, NULL);
2968	RTTESTI_CHECK_MSG(rcNt == STATUS_SUCCESS, ("rcNt=%#x", rcNt));
2969	RTTESTI_CHECK(Ios.Status == STATUS_SUCCESS);
2970	RTTESTI_CHECK(Ios.Information == 0);
2971
2972	RTNT_IO_STATUS_BLOCK_REINIT(&Ios);
2973	rcNt = NtReadFile((HANDLE)RTFileToNative(hFile1), NULL, NULL, NULL, &Ios, pbBuf, 1, NULL, NULL);
2974	RTTESTI_CHECK_MSG(rcNt == STATUS_END_OF_FILE, ("rcNt=%#x", rcNt));
2975	RTTESTI_CHECK(Ios.Status == STATUS_END_OF_FILE);
2976	RTTESTI_CHECK(Ios.Information == 0);
2977	# else
2978	ssize_t cbRead = read((int)RTFileToNative(hFile1), pbBuf, 0);
2979	RTTESTI_CHECK(cbRead == 0);
2980	# endif
2981
2982	#else
2983	RT_NOREF(hFileNoCache);
2984	#endif
2985
2986	/*
2987	* Scatter read function operation.
2988	*/
2989	#ifdef RT_OS_WINDOWS
2990	/** @todo RTFileSgReadAt is just a RTFileReadAt loop for windows NT. Need
2991	* to use ReadFileScatter (nocache + page aligned). */
2992	#elif !defined(RT_OS_OS2) /** @todo implement RTFileSg using list i/o */
2993
2994	# ifdef UIO_MAXIOV
2995	RTSGSEG aSegs[UIO_MAXIOV];
2996	# else
2997	RTSGSEG aSegs[512];
2998	# endif
2999	RTSGBUF SgBuf;
3000	uint32_t cIncr = 1;
3001	for (uint32_t cSegs = 1; cSegs <= RT_ELEMENTS(aSegs); cSegs += cIncr)
3002	{
3003	size_t const cbSeg = cbBuf / cSegs;
3004	size_t const cbToRead = cbSeg * cSegs;
3005	for (uint32_t iSeg = 0; iSeg < cSegs; iSeg++)
3006	{
3007	aSegs[iSeg].cbSeg = cbSeg;
3008	aSegs[iSeg].pvSeg = &pbBuf[cbToRead - (iSeg + 1) * cbSeg];
3009	}
3010	RTSgBufInit(&SgBuf, &aSegs[0], cSegs);
3011	int rc = myFileSgReadAt(hFile1, 0, &SgBuf, cbToRead, NULL);
3012	if (RT_SUCCESS(rc))
3013	for (uint32_t iSeg = 0; iSeg < cSegs; iSeg++)
3014	{
3015	if (!fsPerfCheckReadBuf(__LINE__, iSeg * cbSeg, &pbBuf[cbToRead - (iSeg + 1) * cbSeg], cbSeg))
3016	{
3017	cSegs = RT_ELEMENTS(aSegs);
3018	break;
3019	}
3020	}
3021	else
3022	{
3023	RTTestIFailed("myFileSgReadAt failed: %Rrc - cSegs=%u cbSegs=%#zx cbToRead=%#zx", rc, cSegs, cbSeg, cbToRead);
3024	break;
3025	}
3026	if (cSegs == 16)
3027	cIncr = 7;
3028	else if (cSegs == 16 * 7 + 16 /= 128/)
3029	cIncr = 64;
3030	}
3031
3032	for (uint32_t iTest = 0; iTest < 128; iTest++)
3033	{
3034	uint32_t cSegs = RTRandU32Ex(1, RT_ELEMENTS(aSegs));
3035	uint32_t iZeroSeg = cSegs > 10 ? RTRandU32Ex(0, cSegs - 1) : UINT32_MAX / 2;
3036	uint32_t cZeroSegs = cSegs > 10 ? RTRandU32Ex(1, RT_MIN(cSegs - iZeroSeg, 25)) : 0;
3037	size_t cbToRead = 0;
3038	size_t cbLeft = cbBuf;
3039	uint8_t *pbCur = &pbBuf[cbBuf];
3040	for (uint32_t iSeg = 0; iSeg < cSegs; iSeg++)
3041	{
3042	uint32_t iAlign = RTRandU32Ex(0, 3);
3043	if (iAlign & 2) /* end is page aligned */
3044	{
3045	cbLeft -= (uintptr_t)pbCur & PAGE_OFFSET_MASK;
3046	pbCur -= (uintptr_t)pbCur & PAGE_OFFSET_MASK;
3047	}
3048
3049	size_t cbSegOthers = (cSegs - iSeg) * _8K;
3050	size_t cbSegMax = cbLeft > cbSegOthers ? cbLeft - cbSegOthers
3051	: cbLeft > cSegs ? cbLeft - cSegs
3052	: cbLeft;
3053	size_t cbSeg = cbLeft != 0 ? RTRandU32Ex(0, cbSegMax) : 0;
3054	if (iAlign & 1) /* start is page aligned */
3055	cbSeg += ((uintptr_t)pbCur - cbSeg) & PAGE_OFFSET_MASK;
3056
3057	if (iSeg - iZeroSeg < cZeroSegs)
3058	cbSeg = 0;
3059
3060	cbToRead += cbSeg;
3061	cbLeft -= cbSeg;
3062	pbCur -= cbSeg;
3063	aSegs[iSeg].cbSeg = cbSeg;
3064	aSegs[iSeg].pvSeg = pbCur;
3065	}
3066
3067	uint64_t offFile = cbToRead < cbFile ? RTRandU64Ex(0, cbFile - cbToRead) : 0;
3068	RTSgBufInit(&SgBuf, &aSegs[0], cSegs);
3069	int rc = myFileSgReadAt(hFile1, offFile, &SgBuf, cbToRead, NULL);
3070	if (RT_SUCCESS(rc))
3071	for (uint32_t iSeg = 0; iSeg < cSegs; iSeg++)
3072	{
3073	if (!fsPerfCheckReadBuf(__LINE__, offFile, (uint8_t *)aSegs[iSeg].pvSeg, aSegs[iSeg].cbSeg))
3074	{
3075	RTTestIFailureDetails("iSeg=%#x cSegs=%#x cbSeg=%#zx cbToRead=%#zx\n", iSeg, cSegs, aSegs[iSeg].cbSeg, cbToRead);
3076	iTest = _16K;
3077	break;
3078	}
3079	offFile += aSegs[iSeg].cbSeg;
3080	}
3081	else
3082	{
3083	RTTestIFailed("myFileSgReadAt failed: %Rrc - cSegs=%#x cbToRead=%#zx", rc, cSegs, cbToRead);
3084	for (uint32_t iSeg = 0; iSeg < cSegs; iSeg++)
3085	RTTestIFailureDetails("aSeg[%u] = %p LB %#zx (last %p)\n", iSeg, aSegs[iSeg].pvSeg, aSegs[iSeg].cbSeg,
3086	(uint8_t *)aSegs[iSeg].pvSeg + aSegs[iSeg].cbSeg - 1);
3087	break;
3088	}
3089	}
3090
3091	/* reading beyond the end of the file */
3092	for (uint32_t cSegs = 1; cSegs < 6; cSegs++)
3093	for (uint32_t iTest = 0; iTest < 128; iTest++)
3094	{
3095	uint32_t const cbToRead = RTRandU32Ex(0, cbBuf);
3096	uint32_t const cbBeyond = cbToRead ? RTRandU32Ex(0, cbToRead) : 0;
3097	uint32_t const cbSeg = cbToRead / cSegs;
3098	uint32_t cbLeft = cbToRead;
3099	uint8_t *pbCur = &pbBuf[cbToRead];
3100	for (uint32_t iSeg = 0; iSeg < cSegs; iSeg++)
3101	{
3102	aSegs[iSeg].cbSeg = iSeg + 1 < cSegs ? cbSeg : cbLeft;
3103	aSegs[iSeg].pvSeg = pbCur -= aSegs[iSeg].cbSeg;
3104	cbLeft -= aSegs[iSeg].cbSeg;
3105	}
3106	Assert(pbCur == pbBuf);
3107
3108	uint64_t offFile = cbFile + cbBeyond - cbToRead;
3109	RTSgBufInit(&SgBuf, &aSegs[0], cSegs);
3110	int rcExpect = cbBeyond == 0 \|\| cbToRead == 0 ? VINF_SUCCESS : VERR_EOF;
3111	int rc = myFileSgReadAt(hFile1, offFile, &SgBuf, cbToRead, NULL);
3112	if (rc != rcExpect)
3113	{
3114	RTTestIFailed("myFileSgReadAt failed: %Rrc - cSegs=%#x cbToRead=%#zx cbBeyond=%#zx\n", rc, cSegs, cbToRead, cbBeyond);
3115	for (uint32_t iSeg = 0; iSeg < cSegs; iSeg++)
3116	RTTestIFailureDetails("aSeg[%u] = %p LB %#zx (last %p)\n", iSeg, aSegs[iSeg].pvSeg, aSegs[iSeg].cbSeg,
3117	(uint8_t *)aSegs[iSeg].pvSeg + aSegs[iSeg].cbSeg - 1);
3118	}
3119
3120	RTSgBufInit(&SgBuf, &aSegs[0], cSegs);
3121	size_t cbActual = 0;
3122	rc = myFileSgReadAt(hFile1, offFile, &SgBuf, cbToRead, &cbActual);
3123	if (rc != VINF_SUCCESS \|\| cbActual != cbToRead - cbBeyond)
3124	RTTestIFailed("myFileSgReadAt failed: %Rrc cbActual=%#zu - cSegs=%#x cbToRead=%#zx cbBeyond=%#zx expected %#zx\n",
3125	rc, cbActual, cSegs, cbToRead, cbBeyond, cbToRead - cbBeyond);
3126	if (RT_SUCCESS(rc) && cbActual > 0)
3127	for (uint32_t iSeg = 0; iSeg < cSegs; iSeg++)
3128	{
3129	if (!fsPerfCheckReadBuf(__LINE__, offFile, (uint8_t *)aSegs[iSeg].pvSeg, RT_MIN(cbActual, aSegs[iSeg].cbSeg)))
3130	{
3131	RTTestIFailureDetails("iSeg=%#x cSegs=%#x cbSeg=%#zx cbActual%#zx cbToRead=%#zx cbBeyond=%#zx\n",
3132	iSeg, cSegs, aSegs[iSeg].cbSeg, cbActual, cbToRead, cbBeyond);
3133	iTest = _16K;
3134	break;
3135	}
3136	if (cbActual <= aSegs[iSeg].cbSeg)
3137	break;
3138	cbActual -= aSegs[iSeg].cbSeg;
3139	offFile += aSegs[iSeg].cbSeg;
3140	}
3141	}
3142
3143	#endif
3144
3145	/*
3146	* Other OS specific stuff.
3147	*/
3148	#ifdef RT_OS_WINDOWS
3149	/* Check that reading at an offset modifies the position: */
3150	RTTESTI_CHECK_RC(RTFileSeek(hFile1, 0, RTFILE_SEEK_END, NULL), VINF_SUCCESS);
3151	RTTESTI_CHECK(RTFileTell(hFile1) == cbFile);
3152
3153	RTNT_IO_STATUS_BLOCK_REINIT(&Ios);
3154	LARGE_INTEGER offNt;
3155	offNt.QuadPart = cbFile / 2;
3156	rcNt = NtReadFile((HANDLE)RTFileToNative(hFile1), NULL, NULL, NULL, &Ios, pbBuf, _4K, &offNt, NULL);
3157	RTTESTI_CHECK_MSG(rcNt == STATUS_SUCCESS, ("rcNt=%#x", rcNt));
3158	RTTESTI_CHECK(Ios.Status == STATUS_SUCCESS);
3159	RTTESTI_CHECK(Ios.Information == _4K);
3160	RTTESTI_CHECK(RTFileTell(hFile1) == cbFile / 2 + _4K);
3161	fsPerfCheckReadBuf(__LINE__, cbFile / 2, pbBuf, _4K);
3162	#endif
3163
3164
3165	RTMemPageFree(pbBuf, cbBuf);
3166	}
3167
3168
3169	/**
3170	* One RTFileWrite profiling iteration.
3171	*/
3172	DECL_FORCE_INLINE(int) fsPerfIoWriteWorker(RTFILE hFile1, uint64_t cbFile, uint32_t cbBlock, uint8_t *pbBlock,
3173	uint64_t poffActual, uint32_t pcSeeks)
3174	{
3175	/* Do we need to seek back to the start? */
3176	if (*poffActual + cbBlock <= cbFile)
3177	{ /* likely */ }
3178	else
3179	{
3180	RTTESTI_CHECK_RC_RET(RTFileSeek(hFile1, 0, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS, rcCheck);
3181	*pcSeeks += 1;
3182	*poffActual = 0;
3183	}
3184
3185	size_t cbActuallyWritten = 0;
3186	RTTESTI_CHECK_RC_RET(RTFileWrite(hFile1, pbBlock, cbBlock, &cbActuallyWritten), VINF_SUCCESS, rcCheck);
3187	if (cbActuallyWritten == cbBlock)
3188	{
3189	*poffActual += cbActuallyWritten;
3190	return VINF_SUCCESS;
3191	}
3192	RTTestIFailed("RTFileWrite at %#RX64 returned just %#x bytes, expected %#x", *poffActual, cbActuallyWritten, cbBlock);
3193	*poffActual += cbActuallyWritten;
3194	return VERR_WRITE_ERROR;
3195	}
3196
3197
3198	void fsPerfIoWriteBlockSize(RTFILE hFile1, uint64_t cbFile, uint32_t cbBlock)
3199	{
3200	RTTestISubF("IO - Sequential write %RU32", cbBlock);
3201
3202	if (cbBlock <= cbFile)
3203	{
3204	uint8_t pbBuf = (uint8_t )RTMemPageAlloc(cbBlock);
3205	if (pbBuf)
3206	{
3207	memset(pbBuf, 0xf7, cbBlock);
3208	PROFILE_IO_FN("RTFileWrite", fsPerfIoWriteWorker(hFile1, cbFile, cbBlock, pbBuf, &offActual, &cSeeks));
3209	RTMemPageFree(pbBuf, cbBlock);
3210	}
3211	else
3212	RTTestSkipped(g_hTest, "insufficient (virtual) memory available");
3213	}
3214	else
3215	RTTestSkipped(g_hTest, "test file too small");
3216	}
3217
3218
3219	/** pwritev is too new to be useful, so we use the writev api via this wrapper. */
3220	DECLINLINE(int) myFileSgWriteAt(RTFILE hFile, RTFOFF off, PRTSGBUF pSgBuf, size_t cbToWrite, size_t *pcbWritten)
3221	{
3222	int rc = RTFileSeek(hFile, off, RTFILE_SEEK_BEGIN, NULL);
3223	if (RT_SUCCESS(rc))
3224	rc = RTFileSgWrite(hFile, pSgBuf, cbToWrite, pcbWritten);
3225	return rc;
3226	}
3227
3228
3229	void fsPerfWrite(RTFILE hFile1, RTFILE hFileNoCache, RTFILE hFileWriteThru, uint64_t cbFile)
3230	{
3231	RTTestISubF("IO - RTFileWrite");
3232
3233	/*
3234	* Allocate a big buffer we can play around with. Min size is 1MB.
3235	*/
3236	size_t cbBuf = cbFile < _64M ? (size_t)cbFile : _64M;
3237	uint8_t pbBuf = (uint8_t )RTMemPageAlloc(cbBuf);
3238	while (!pbBuf)
3239	{
3240	cbBuf /= 2;
3241	RTTESTI_CHECK_RETV(cbBuf >= _1M);
3242	pbBuf = (uint8_t *)RTMemPageAlloc(_32M);
3243	}
3244
3245	uint8_t bFiller = 0x88;
3246
3247	#if 1
3248	/*
3249	* Start at the beginning and write out the full buffer in random small chunks, thereby
3250	* checking that unaligned buffer addresses, size and file offsets work fine.
3251	*/
3252	struct
3253	{
3254	uint64_t offFile;
3255	uint32_t cbMax;
3256	} aRuns[] = { { 0, 127 }, { cbFile - cbBuf, UINT32_MAX }, { 0, UINT32_MAX -1 }};
3257	for (uint32_t i = 0; i < RT_ELEMENTS(aRuns); i++, bFiller)
3258	{
3259	fsPerfFillWriteBuf(aRuns[i].offFile, pbBuf, cbBuf, bFiller);
3260	fsPerfCheckReadBuf(__LINE__, aRuns[i].offFile, pbBuf, cbBuf, bFiller);
3261
3262	RTTESTI_CHECK_RC(RTFileSeek(hFile1, aRuns[i].offFile, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS);
3263	for (size_t offBuf = 0; offBuf < cbBuf; )
3264	{
3265	uint32_t const cbLeft = (uint32_t)(cbBuf - offBuf);
3266	uint32_t const cbToWrite = aRuns[i].cbMax < UINT32_MAX / 2 ? RTRandU32Ex(1, RT_MIN(aRuns[i].cbMax, cbLeft))
3267	: aRuns[i].cbMax == UINT32_MAX ? RTRandU32Ex(RT_MAX(cbLeft / 4, 1), cbLeft)
3268	: RTRandU32Ex(cbLeft >= _8K ? _8K : 1, RT_MIN(_1M, cbLeft));
3269	size_t cbActual = 0;
3270	RTTESTI_CHECK_RC(RTFileWrite(hFile1, &pbBuf[offBuf], cbToWrite, &cbActual), VINF_SUCCESS);
3271	if (cbActual == cbToWrite)
3272	{
3273	offBuf += cbActual;
3274	RTTESTI_CHECK_MSG(RTFileTell(hFile1) == aRuns[i].offFile + offBuf,
3275	("%#RX64, expected %#RX64\n", RTFileTell(hFile1), aRuns[i].offFile + offBuf));
3276	}
3277	else
3278	{
3279	RTTestIFailed("Attempting to write %#x bytes at %#zx (%#x left), only got %#x written!\n",
3280	cbToWrite, offBuf, cbLeft, cbActual);
3281	if (cbActual)
3282	offBuf += cbActual;
3283	else
3284	pbBuf[offBuf++] = 0x11;
3285	}
3286	}
3287
3288	RTTESTI_CHECK_RC(RTFileReadAt(hFile1, aRuns[i].offFile, pbBuf, cbBuf, NULL), VINF_SUCCESS);
3289	fsPerfCheckReadBuf(__LINE__, aRuns[i].offFile, pbBuf, cbBuf, bFiller);
3290	}
3291
3292
3293	/*
3294	* Do uncached and write-thru accesses, must be page aligned.
3295	*/
3296	RTFILE ahFiles[2] = { hFileWriteThru, hFileNoCache };
3297	for (unsigned iFile = 0; iFile < RT_ELEMENTS(ahFiles); iFile++, bFiller++)
3298	{
3299	if (g_fIgnoreNoCache && ahFiles[iFile] == NIL_RTFILE)
3300	continue;
3301
3302	fsPerfFillWriteBuf(0, pbBuf, cbBuf, bFiller);
3303	fsPerfCheckReadBuf(__LINE__, 0, pbBuf, cbBuf, bFiller);
3304	RTTESTI_CHECK_RC(RTFileSeek(ahFiles[iFile], 0, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS);
3305
3306	uint32_t cbPage = PAGE_SIZE;
3307	for (size_t offBuf = 0; offBuf < cbBuf; )
3308	{
3309	uint32_t const cPagesLeft = (uint32_t)((cbBuf - offBuf) / cbPage);
3310	uint32_t const cPagesToWrite = RTRandU32Ex(1, cPagesLeft);
3311	size_t const cbToWrite = cPagesToWrite * (size_t)cbPage;
3312	size_t cbActual = 0;
3313	RTTESTI_CHECK_RC(RTFileWrite(ahFiles[iFile], &pbBuf[offBuf], cbToWrite, &cbActual), VINF_SUCCESS);
3314	if (cbActual == cbToWrite)
3315	{
3316	RTTESTI_CHECK_RC(RTFileReadAt(hFile1, offBuf, pbBuf, cbToWrite, NULL), VINF_SUCCESS);
3317	fsPerfCheckReadBuf(__LINE__, offBuf, pbBuf, cbToWrite, bFiller);
3318	offBuf += cbActual;
3319	}
3320	else
3321	{
3322	RTTestIFailed("Attempting to read %#zx bytes at %#zx, only got %#x written!\n", cbToWrite, offBuf, cbActual);
3323	if (cbActual)
3324	offBuf += cbActual;
3325	else
3326	{
3327	memset(&pbBuf[offBuf], 0x11, cbPage);
3328	offBuf += cbPage;
3329	}
3330	}
3331	}
3332
3333	RTTESTI_CHECK_RC(RTFileReadAt(ahFiles[iFile], 0, pbBuf, cbBuf, NULL), VINF_SUCCESS);
3334	fsPerfCheckReadBuf(__LINE__, 0, pbBuf, cbBuf, bFiller);
3335	}
3336
3337	/*
3338	* Check the behavior of writing zero bytes to the file _4K from the end
3339	* using native API. In the olden days zero sized write have been known
3340	* to be used to truncate a file.
3341	*/
3342	RTTESTI_CHECK_RC(RTFileSeek(hFile1, -_4K, RTFILE_SEEK_END, NULL), VINF_SUCCESS);
3343	# ifdef RT_OS_WINDOWS
3344	IO_STATUS_BLOCK Ios = RTNT_IO_STATUS_BLOCK_INITIALIZER;
3345	NTSTATUS rcNt = NtWriteFile((HANDLE)RTFileToNative(hFile1), NULL, NULL, NULL, &Ios, pbBuf, 0, NULL, NULL);
3346	RTTESTI_CHECK_MSG(rcNt == STATUS_SUCCESS, ("rcNt=%#x", rcNt));
3347	RTTESTI_CHECK(Ios.Status == STATUS_SUCCESS);
3348	RTTESTI_CHECK(Ios.Information == 0);
3349	# else
3350	ssize_t cbWritten = write((int)RTFileToNative(hFile1), pbBuf, 0);
3351	RTTESTI_CHECK(cbWritten == 0);
3352	# endif
3353	RTTESTI_CHECK_RC(RTFileRead(hFile1, pbBuf, _4K, NULL), VINF_SUCCESS);
3354	fsPerfCheckReadBuf(__LINE__, cbFile - _4K, pbBuf, _4K, pbBuf[0x8]);
3355
3356	#else
3357	RT_NOREF(hFileNoCache, hFileWriteThru);
3358	#endif
3359
3360	/*
3361	* Gather write function operation.
3362	*/
3363	#ifdef RT_OS_WINDOWS
3364	/** @todo RTFileSgWriteAt is just a RTFileWriteAt loop for windows NT. Need
3365	* to use WriteFileGather (nocache + page aligned). */
3366	#elif !defined(RT_OS_OS2) /** @todo implement RTFileSg using list i/o */
3367
3368	# ifdef UIO_MAXIOV
3369	RTSGSEG aSegs[UIO_MAXIOV];
3370	# else
3371	RTSGSEG aSegs[512];
3372	# endif
3373	RTSGBUF SgBuf;
3374	uint32_t cIncr = 1;
3375	for (uint32_t cSegs = 1; cSegs <= RT_ELEMENTS(aSegs); cSegs += cIncr, bFiller++)
3376	{
3377	size_t const cbSeg = cbBuf / cSegs;
3378	size_t const cbToWrite = cbSeg * cSegs;
3379	for (uint32_t iSeg = 0; iSeg < cSegs; iSeg++)
3380	{
3381	aSegs[iSeg].cbSeg = cbSeg;
3382	aSegs[iSeg].pvSeg = &pbBuf[cbToWrite - (iSeg + 1) * cbSeg];
3383	fsPerfFillWriteBuf(iSeg * cbSeg, (uint8_t *)aSegs[iSeg].pvSeg, cbSeg, bFiller);
3384	}
3385	RTSgBufInit(&SgBuf, &aSegs[0], cSegs);
3386	int rc = myFileSgWriteAt(hFile1, 0, &SgBuf, cbToWrite, NULL);
3387	if (RT_SUCCESS(rc))
3388	{
3389	RTTESTI_CHECK_RC(RTFileReadAt(hFile1, 0, pbBuf, cbToWrite, NULL), VINF_SUCCESS);
3390	fsPerfCheckReadBuf(__LINE__, 0, pbBuf, cbToWrite, bFiller);
3391	}
3392	else
3393	{
3394	RTTestIFailed("myFileSgWriteAt failed: %Rrc - cSegs=%u cbSegs=%#zx cbToWrite=%#zx", rc, cSegs, cbSeg, cbToWrite);
3395	break;
3396	}
3397	if (cSegs == 16)
3398	cIncr = 7;
3399	else if (cSegs == 16 * 7 + 16 /= 128/)
3400	cIncr = 64;
3401	}
3402
3403	/* random stuff, including zero segments. */
3404	for (uint32_t iTest = 0; iTest < 128; iTest++, bFiller++)
3405	{
3406	uint32_t cSegs = RTRandU32Ex(1, RT_ELEMENTS(aSegs));
3407	uint32_t iZeroSeg = cSegs > 10 ? RTRandU32Ex(0, cSegs - 1) : UINT32_MAX / 2;
3408	uint32_t cZeroSegs = cSegs > 10 ? RTRandU32Ex(1, RT_MIN(cSegs - iZeroSeg, 25)) : 0;
3409	size_t cbToWrite = 0;
3410	size_t cbLeft = cbBuf;
3411	uint8_t *pbCur = &pbBuf[cbBuf];
3412	for (uint32_t iSeg = 0; iSeg < cSegs; iSeg++)
3413	{
3414	uint32_t iAlign = RTRandU32Ex(0, 3);
3415	if (iAlign & 2) /* end is page aligned */
3416	{
3417	cbLeft -= (uintptr_t)pbCur & PAGE_OFFSET_MASK;
3418	pbCur -= (uintptr_t)pbCur & PAGE_OFFSET_MASK;
3419	}
3420
3421	size_t cbSegOthers = (cSegs - iSeg) * _8K;
3422	size_t cbSegMax = cbLeft > cbSegOthers ? cbLeft - cbSegOthers
3423	: cbLeft > cSegs ? cbLeft - cSegs
3424	: cbLeft;
3425	size_t cbSeg = cbLeft != 0 ? RTRandU32Ex(0, cbSegMax) : 0;
3426	if (iAlign & 1) /* start is page aligned */
3427	cbSeg += ((uintptr_t)pbCur - cbSeg) & PAGE_OFFSET_MASK;
3428
3429	if (iSeg - iZeroSeg < cZeroSegs)
3430	cbSeg = 0;
3431
3432	cbToWrite += cbSeg;
3433	cbLeft -= cbSeg;
3434	pbCur -= cbSeg;
3435	aSegs[iSeg].cbSeg = cbSeg;
3436	aSegs[iSeg].pvSeg = pbCur;
3437	}
3438
3439	uint64_t const offFile = cbToWrite < cbFile ? RTRandU64Ex(0, cbFile - cbToWrite) : 0;
3440	uint64_t offFill = offFile;
3441	for (uint32_t iSeg = 0; iSeg < cSegs; iSeg++)
3442	if (aSegs[iSeg].cbSeg)
3443	{
3444	fsPerfFillWriteBuf(offFill, (uint8_t *)aSegs[iSeg].pvSeg, aSegs[iSeg].cbSeg, bFiller);
3445	offFill += aSegs[iSeg].cbSeg;
3446	}
3447
3448	RTSgBufInit(&SgBuf, &aSegs[0], cSegs);
3449	int rc = myFileSgWriteAt(hFile1, offFile, &SgBuf, cbToWrite, NULL);
3450	if (RT_SUCCESS(rc))
3451	{
3452	RTTESTI_CHECK_RC(RTFileReadAt(hFile1, offFile, pbBuf, cbToWrite, NULL), VINF_SUCCESS);
3453	fsPerfCheckReadBuf(__LINE__, offFile, pbBuf, cbToWrite, bFiller);
3454	}
3455	else
3456	{
3457	RTTestIFailed("myFileSgWriteAt failed: %Rrc - cSegs=%#x cbToWrite=%#zx", rc, cSegs, cbToWrite);
3458	break;
3459	}
3460	}
3461
3462	#endif
3463
3464	/*
3465	* Other OS specific stuff.
3466	*/
3467	#ifdef RT_OS_WINDOWS
3468	/* Check that reading at an offset modifies the position: */
3469	RTTESTI_CHECK_RC(RTFileReadAt(hFile1, cbFile / 2, pbBuf, _4K, NULL), VINF_SUCCESS);
3470	RTTESTI_CHECK_RC(RTFileSeek(hFile1, 0, RTFILE_SEEK_END, NULL), VINF_SUCCESS);
3471	RTTESTI_CHECK(RTFileTell(hFile1) == cbFile);
3472
3473	RTNT_IO_STATUS_BLOCK_REINIT(&Ios);
3474	LARGE_INTEGER offNt;
3475	offNt.QuadPart = cbFile / 2;
3476	rcNt = NtWriteFile((HANDLE)RTFileToNative(hFile1), NULL, NULL, NULL, &Ios, pbBuf, _4K, &offNt, NULL);
3477	RTTESTI_CHECK_MSG(rcNt == STATUS_SUCCESS, ("rcNt=%#x", rcNt));
3478	RTTESTI_CHECK(Ios.Status == STATUS_SUCCESS);
3479	RTTESTI_CHECK(Ios.Information == _4K);
3480	RTTESTI_CHECK(RTFileTell(hFile1) == cbFile / 2 + _4K);
3481	#endif
3482
3483	RTMemPageFree(pbBuf, cbBuf);
3484	}
3485
3486
3487	/**
3488	* Worker for testing RTFileFlush.
3489	*/
3490	DECL_FORCE_INLINE(int) fsPerfFSyncWorker(RTFILE hFile1, uint64_t cbFile, uint8_t pbBuf, size_t cbBuf, uint64_t poffFile)
3491	{
3492	if (*poffFile + cbBuf <= cbFile)
3493	{ /* likely */ }
3494	else
3495	{
3496	RTTESTI_CHECK_RC(RTFileSeek(hFile1, 0, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS);
3497	*poffFile = 0;
3498	}
3499
3500	RTTESTI_CHECK_RC_RET(RTFileWrite(hFile1, pbBuf, cbBuf, NULL), VINF_SUCCESS, rcCheck);
3501	RTTESTI_CHECK_RC_RET(RTFileFlush(hFile1), VINF_SUCCESS, rcCheck);
3502
3503	*poffFile += cbBuf;
3504	return VINF_SUCCESS;
3505	}
3506
3507
3508	void fsPerfFSync(RTFILE hFile1, uint64_t cbFile)
3509	{
3510	RTTestISub("fsync");
3511
3512	RTTESTI_CHECK_RC(RTFileFlush(hFile1), VINF_SUCCESS);
3513
3514	PROFILE_FN(RTFileFlush(hFile1), g_nsTestRun, "RTFileFlush");
3515
3516	size_t cbBuf = PAGE_SIZE;
3517	uint8_t pbBuf = (uint8_t )RTMemPageAlloc(cbBuf);
3518	RTTESTI_CHECK_RETV(pbBuf != NULL);
3519	memset(pbBuf, 0xf4, cbBuf);
3520
3521	RTTESTI_CHECK_RC(RTFileSeek(hFile1, 0, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS);
3522	uint64_t offFile = 0;
3523	PROFILE_FN(fsPerfFSyncWorker(hFile1, cbFile, pbBuf, cbBuf, &offFile), g_nsTestRun, "RTFileWrite[Page]/RTFileFlush");
3524
3525	RTMemPageFree(pbBuf, cbBuf);
3526	}
3527
3528
3529	#ifndef RT_OS_OS2
3530	/**
3531	* Worker for profiling msync.
3532	*/
3533	DECL_FORCE_INLINE(int) fsPerfMSyncWorker(uint8_t pbMapping, size_t offMapping, size_t cbFlush, size_t pcbFlushed)
3534	{
3535	uint8_t *pbCur = &pbMapping[offMapping];
3536	for (size_t offFlush = 0; offFlush < cbFlush; offFlush += PAGE_SIZE)
3537	(size_t volatile )&pbCur[offFlush + 8] = cbFlush;
3538	# ifdef RT_OS_WINDOWS
3539	RTTESTI_CHECK(FlushViewOfFile(pbCur, cbFlush));
3540	# else
3541	RTTESTI_CHECK(msync(pbCur, cbFlush, MS_SYNC) == 0);
3542	# endif
3543	if (*pcbFlushed < offMapping + cbFlush)
3544	*pcbFlushed = offMapping + cbFlush;
3545	return VINF_SUCCESS;
3546	}
3547	#endif /* !RT_OS_OS2 */
3548
3549
3550	void fsPerfMMap(RTFILE hFile1, RTFILE hFileNoCache, uint64_t cbFile)
3551	{
3552	RTTestISub("mmap");
3553	#if !defined(RT_OS_OS2)
3554	static const char * const s_apszStates[] = { "readonly", "writecopy", "readwrite" };
3555	enum { kMMap_ReadOnly = 0, kMMap_WriteCopy, kMMap_ReadWrite, kMMap_End };
3556	for (int enmState = kMMap_ReadOnly; enmState < kMMap_End; enmState++)
3557	{
3558	/*
3559	* Do the mapping.
3560	*/
3561	size_t cbMapping = (size_t)cbFile;
3562	if (cbMapping != cbFile)
3563	cbMapping = _256M;
3564	uint8_t *pbMapping;
3565
3566	# ifdef RT_OS_WINDOWS
3567	HANDLE hSection;
3568	pbMapping = NULL;
3569	for (;; cbMapping /= 2)
3570	{
3571	hSection = CreateFileMapping((HANDLE)RTFileToNative(hFile1), NULL,
3572	enmState == kMMap_ReadOnly ? PAGE_READONLY
3573	: enmState == kMMap_WriteCopy ? PAGE_WRITECOPY : PAGE_READWRITE,
3574	(uint32_t)((uint64_t)cbMapping >> 32), (uint32_t)cbMapping, NULL);
3575	DWORD dwErr1 = GetLastError();
3576	DWORD dwErr2 = 0;
3577	if (hSection != NULL)
3578	{
3579	pbMapping = (uint8_t *)MapViewOfFile(hSection,
3580	enmState == kMMap_ReadOnly ? FILE_MAP_READ
3581	: enmState == kMMap_WriteCopy ? FILE_MAP_COPY
3582	: FILE_MAP_WRITE,
3583	0, 0, cbMapping);
3584	if (pbMapping)
3585	break;
3586	dwErr2 = GetLastError();
3587	CloseHandle(hSection);
3588	}
3589	if (cbMapping <= _2M)
3590	{
3591	RTTestIFailed("%u/%s: CreateFileMapping or MapViewOfFile failed: %u, %u",
3592	enmState, s_apszStates[enmState], dwErr1, dwErr2);
3593	break;
3594	}
3595	}
3596	# else
3597	for (;; cbMapping /= 2)
3598	{
3599	pbMapping = (uint8_t *)mmap(NULL, cbMapping,
3600	enmState == kMMap_ReadOnly ? PROT_READ : PROT_READ \| PROT_WRITE,
3601	enmState == kMMap_WriteCopy ? MAP_PRIVATE : MAP_SHARED,
3602	(int)RTFileToNative(hFile1), 0);
3603	if ((void *)pbMapping != MAP_FAILED)
3604	break;
3605	if (cbMapping <= _2M)
3606	{
3607	RTTestIFailed("%u/%s: mmap failed: %s (%u)", enmState, s_apszStates[enmState], strerror(errno), errno);
3608	break;
3609	}
3610	}
3611	# endif
3612	if (cbMapping <= _2M)
3613	continue;
3614
3615	/*
3616	* Time page-ins just for fun.
3617	*/
3618	size_t const cPages = cbMapping >> PAGE_SHIFT;
3619	size_t uDummy = 0;
3620	uint64_t ns = RTTimeNanoTS();
3621	for (size_t iPage = 0; iPage < cPages; iPage++)
3622	uDummy += ASMAtomicReadU8(&pbMapping[iPage << PAGE_SHIFT]);
3623	ns = RTTimeNanoTS() - ns;
3624	RTTestIValueF(ns / cPages, RTTESTUNIT_NS_PER_OCCURRENCE, "page-in %s", s_apszStates[enmState]);
3625
3626	/* Check the content. */
3627	fsPerfCheckReadBuf(__LINE__, 0, pbMapping, cbMapping);
3628
3629	if (enmState != kMMap_ReadOnly)
3630	{
3631	/* Write stuff to the first two megabytes. In the COW case, we'll detect
3632	corruption of shared data during content checking of the RW iterations. */
3633	fsPerfFillWriteBuf(0, pbMapping, _2M, 0xf7);
3634	if (enmState == kMMap_ReadWrite)
3635	{
3636	/* For RW we can try read back from the file handle and check if we get
3637	a match there first. */
3638	uint8_t abBuf[_4K];
3639	for (uint32_t off = 0; off < _2M; off += sizeof(abBuf))
3640	{
3641	RTTESTI_CHECK_RC(RTFileReadAt(hFile1, off, abBuf, sizeof(abBuf), NULL), VINF_SUCCESS);
3642	fsPerfCheckReadBuf(__LINE__, off, abBuf, sizeof(abBuf), 0xf7);
3643	}
3644	# ifdef RT_OS_WINDOWS
3645	RTTESTI_CHECK(FlushViewOfFile(pbMapping, _2M));
3646	# else
3647	RTTESTI_CHECK(msync(pbMapping, _2M, MS_SYNC) == 0);
3648	# endif
3649
3650	/*
3651	* Time modifying and flushing a few different number of pages.
3652	*/
3653	static size_t const s_acbFlush[] = { PAGE_SIZE, PAGE_SIZE * 2, PAGE_SIZE * 3, PAGE_SIZE * 8, PAGE_SIZE * 16, _2M };
3654	for (unsigned iFlushSize = 0 ; iFlushSize < RT_ELEMENTS(s_acbFlush); iFlushSize++)
3655	{
3656	size_t const cbFlush = s_acbFlush[iFlushSize];
3657	if (cbFlush > cbMapping)
3658	continue;
3659
3660	char szDesc[80];
3661	RTStrPrintf(szDesc, sizeof(szDesc), "touch/flush/%zu", cbFlush);
3662	size_t const cFlushes = cbMapping / cbFlush;
3663	size_t const cbMappingUsed = cFlushes * cbFlush;
3664	size_t cbFlushed = 0;
3665	PROFILE_FN(fsPerfMSyncWorker(pbMapping, (iIteration * cbFlush) % cbMappingUsed, cbFlush, &cbFlushed),
3666	g_nsTestRun, szDesc);
3667
3668	/*
3669	* Check that all the changes made it thru to the file:
3670	*/
3671	if (!g_fIgnoreNoCache \|\| hFileNoCache != NIL_RTFILE)
3672	{
3673	size_t cbBuf = _2M;
3674	uint8_t pbBuf = (uint8_t )RTMemPageAlloc(cbBuf);
3675	if (!pbBuf)
3676	{
3677	cbBuf = _4K;
3678	pbBuf = (uint8_t *)RTMemPageAlloc(cbBuf);
3679	}
3680	RTTESTI_CHECK(pbBuf != NULL);
3681	if (pbBuf)
3682	{
3683	RTTESTI_CHECK_RC(RTFileSeek(hFileNoCache, 0, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS);
3684	size_t const cbToCheck = RT_MIN(cFlushes * cbFlush, cbFlushed);
3685	unsigned cErrors = 0;
3686	for (size_t offBuf = 0; cErrors < 32 && offBuf < cbToCheck; offBuf += cbBuf)
3687	{
3688	size_t cbToRead = RT_MIN(cbBuf, cbToCheck - offBuf);
3689	RTTESTI_CHECK_RC(RTFileRead(hFileNoCache, pbBuf, cbToRead, NULL), VINF_SUCCESS);
3690
3691	for (size_t offFlush = 0; offFlush < cbToRead; offFlush += PAGE_SIZE)
3692	if ((size_t volatile )&pbBuf[offFlush + 8] != cbFlush)
3693	{
3694	RTTestIFailed("Flush issue at offset #%zx: %#zx, expected %#zx (cbFlush=%#zx, %#RX64)",
3695	offBuf + offFlush + 8, (size_t volatile )&pbBuf[offFlush + 8],
3696	cbFlush, cbFlush, (uint64_t volatile )&pbBuf[offFlush]);
3697	if (++cErrors > 32)
3698	break;
3699	}
3700	}
3701	RTMemPageFree(pbBuf, cbBuf);
3702	}
3703	}
3704	}
3705
3706	# if 0 /* not needed, very very slow */
3707	/*
3708	* Restore the file to 0xf6 state for the next test.
3709	*/
3710	RTTestIPrintf(RTTESTLVL_ALWAYS, "Restoring content...\n");
3711	fsPerfFillWriteBuf(0, pbMapping, cbMapping, 0xf6);
3712	# ifdef RT_OS_WINDOWS
3713	RTTESTI_CHECK(FlushViewOfFile(pbMapping, cbMapping));
3714	# else
3715	RTTESTI_CHECK(msync(pbMapping, cbMapping, MS_SYNC) == 0);
3716	# endif
3717	RTTestIPrintf(RTTESTLVL_ALWAYS, "... done\n");
3718	# endif
3719	}
3720	}
3721
3722	/*
3723	* Observe how regular writes affects a read-only or readwrite mapping.
3724	* These should ideally be immediately visible in the mapping, at least
3725	* when not performed thru an no-cache handle.
3726	*/
3727	if (enmState == kMMap_ReadOnly \|\| enmState == kMMap_ReadWrite)
3728	{
3729	size_t cbBuf = RT_MIN(_2M, cbMapping / 2);
3730	uint8_t pbBuf = (uint8_t )RTMemPageAlloc(cbBuf);
3731	if (!pbBuf)
3732	{
3733	cbBuf = _4K;
3734	pbBuf = (uint8_t *)RTMemPageAlloc(cbBuf);
3735	}
3736	RTTESTI_CHECK(pbBuf != NULL);
3737	if (pbBuf)
3738	{
3739	/* Do a number of random writes to the file (using hFile1).
3740	Immediately undoing them. */
3741	for (uint32_t i = 0; i < 128; i++)
3742	{
3743	/* Generate a randomly sized write at a random location, making
3744	sure it differs from whatever is there already before writing. */
3745	uint32_t const cbToWrite = RTRandU32Ex(1, (uint32_t)cbBuf);
3746	uint64_t const offToWrite = RTRandU64Ex(0, cbMapping - cbToWrite);
3747
3748	fsPerfFillWriteBuf(offToWrite, pbBuf, cbToWrite, 0xf8);
3749	pbBuf[0] = ~pbBuf[0];
3750	if (cbToWrite > 1)
3751	pbBuf[cbToWrite - 1] = ~pbBuf[cbToWrite - 1];
3752	RTTESTI_CHECK_RC(RTFileWriteAt(hFile1, offToWrite, pbBuf, cbToWrite, NULL), VINF_SUCCESS);
3753
3754	/* Check the mapping. */
3755	if (memcmp(&pbMapping[(size_t)offToWrite], pbBuf, cbToWrite) != 0)
3756	{
3757	RTTestIFailed("Write #%u @ %#RX64 LB %#x was not reflected in the mapping!\n", i, offToWrite, cbToWrite);
3758	}
3759
3760	/* Restore */
3761	fsPerfFillWriteBuf(offToWrite, pbBuf, cbToWrite, 0xf6);
3762	RTTESTI_CHECK_RC(RTFileWriteAt(hFile1, offToWrite, pbBuf, cbToWrite, NULL), VINF_SUCCESS);
3763	}
3764
3765	RTMemPageFree(pbBuf, cbBuf);
3766	}
3767	}
3768
3769	/*
3770	* Unmap it.
3771	*/
3772	# ifdef RT_OS_WINDOWS
3773	RTTESTI_CHECK(UnmapViewOfFile(pbMapping));
3774	RTTESTI_CHECK(CloseHandle(hSection));
3775	# else
3776	RTTESTI_CHECK(munmap(pbMapping, cbMapping) == 0);
3777	# endif
3778	}
3779
3780	/*
3781	* Memory mappings without open handles (pretty common).
3782	*/
3783	for (uint32_t i = 0; i < 32; i++)
3784	{
3785	/* Create a new file, 256 KB in size, and fill it with random bytes.
3786	Try uncached access if we can to force the page-in to do actual reads. */
3787	char szFile2[FSPERF_MAX_PATH + 32];
3788	memcpy(szFile2, g_szDir, g_cchDir);
3789	RTStrPrintf(&szFile2[g_cchDir], sizeof(szFile2) - g_cchDir, "mmap-%u.noh", i);
3790	RTFILE hFile2 = NIL_RTFILE;
3791	int rc = (i & 3) == 3 ? VERR_TRY_AGAIN
3792	: RTFileOpen(&hFile2, szFile2, RTFILE_O_READWRITE \| RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_NO_CACHE);
3793	if (RT_FAILURE(rc))
3794	{
3795	RTTESTI_CHECK_RC_BREAK(RTFileOpen(&hFile2, szFile2, RTFILE_O_READWRITE \| RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE),
3796	VINF_SUCCESS);
3797	}
3798
3799	static char s_abContentUnaligned[256*1024 + PAGE_SIZE - 1];
3800	char * const pbContent = &s_abContentUnaligned[PAGE_SIZE - ((uintptr_t)&s_abContentUnaligned[0] & PAGE_OFFSET_MASK)];
3801	size_t const cbContent = 256*1024;
3802	RTRandBytes(pbContent, cbContent);
3803	RTTESTI_CHECK_RC(rc = RTFileWrite(hFile2, pbContent, cbContent, NULL), VINF_SUCCESS);
3804	RTTESTI_CHECK_RC(RTFileClose(hFile2), VINF_SUCCESS);
3805	if (RT_SUCCESS(rc))
3806	{
3807	/* Reopen the file with normal caching. Every second time, we also
3808	does a read-only open of it to confuse matters. */
3809	RTFILE hFile3 = NIL_RTFILE;
3810	if ((i & 3) == 3)
3811	RTTESTI_CHECK_RC(RTFileOpen(&hFile3, szFile2, RTFILE_O_READ \| RTFILE_O_OPEN \| RTFILE_O_DENY_NONE), VINF_SUCCESS);
3812	hFile2 = NIL_RTFILE;
3813	RTTESTI_CHECK_RC_BREAK(RTFileOpen(&hFile2, szFile2, RTFILE_O_READWRITE \| RTFILE_O_OPEN \| RTFILE_O_DENY_NONE),
3814	VINF_SUCCESS);
3815	if ((i & 3) == 1)
3816	RTTESTI_CHECK_RC(RTFileOpen(&hFile3, szFile2, RTFILE_O_READ \| RTFILE_O_OPEN \| RTFILE_O_DENY_NONE), VINF_SUCCESS);
3817
3818	/* Memory map it read-write (no COW). */
3819	#ifdef RT_OS_WINDOWS
3820	HANDLE hSection = CreateFileMapping((HANDLE)RTFileToNative(hFile2), NULL, PAGE_READWRITE, 0, cbContent, NULL);
3821	RTTESTI_CHECK_MSG(hSection != NULL, ("last error %u\n", GetLastError));
3822	uint8_t pbMapping = (uint8_t )MapViewOfFile(hSection, FILE_MAP_WRITE, 0, 0, cbContent);
3823	RTTESTI_CHECK_MSG(pbMapping != NULL, ("last error %u\n", GetLastError));
3824	RTTESTI_CHECK_MSG(CloseHandle(hSection), ("last error %u\n", GetLastError));
3825	# else
3826	uint8_t pbMapping = (uint8_t )mmap(NULL, cbContent, PROT_READ \| PROT_WRITE, MAP_SHARED,
3827	(int)RTFileToNative(hFile2), 0);
3828	if ((void *)pbMapping == MAP_FAILED)
3829	pbMapping = NULL;
3830	RTTESTI_CHECK_MSG(pbMapping != NULL, ("errno=%s (%d)\n", strerror(errno), errno));
3831	# endif
3832
3833	/* Close the file handles. */
3834	if ((i & 7) == 7)
3835	{
3836	RTTESTI_CHECK_RC(RTFileClose(hFile3), VINF_SUCCESS);
3837	hFile3 = NIL_RTFILE;
3838	}
3839	RTTESTI_CHECK_RC(RTFileClose(hFile2), VINF_SUCCESS);
3840	if ((i & 7) == 5)
3841	{
3842	RTTESTI_CHECK_RC(RTFileClose(hFile3), VINF_SUCCESS);
3843	hFile3 = NIL_RTFILE;
3844	}
3845	if (pbMapping)
3846	{
3847	RTThreadSleep(2); /* fudge for cleanup/whatever */
3848
3849	/* Page in the mapping by comparing with the content we wrote above. */
3850	RTTESTI_CHECK(memcmp(pbMapping, pbContent, cbContent) == 0);
3851
3852	/* Now dirty everything by inverting everything. */
3853	size_t puCur = (size_t )pbMapping;
3854	size_t cLeft = cbContent / sizeof(*puCur);
3855	while (cLeft-- > 0)
3856	{
3857	puCur = ~puCur;
3858	puCur++;
3859	}
3860
3861	/* Sync it all. */
3862	# ifdef RT_OS_WINDOWS
3863	RTTESTI_CHECK(FlushViewOfFile(pbMapping, cbContent));
3864	# else
3865	RTTESTI_CHECK(msync(pbMapping, cbContent, MS_SYNC) == 0);
3866	# endif
3867
3868	/* Unmap it. */
3869	# ifdef RT_OS_WINDOWS
3870	RTTESTI_CHECK(UnmapViewOfFile(pbMapping));
3871	# else
3872	RTTESTI_CHECK(munmap(pbMapping, cbContent) == 0);
3873	# endif
3874	}
3875
3876	if (hFile3 != NIL_RTFILE)
3877	RTTESTI_CHECK_RC(RTFileClose(hFile3), VINF_SUCCESS);
3878	}
3879	RTTESTI_CHECK_RC(RTFileDelete(szFile2), VINF_SUCCESS);
3880	}
3881
3882
3883	#else
3884	RTTestSkipped(g_hTest, "not supported/implemented");
3885	RT_NOREF(hFile1, hFileNoCache, cbFile);
3886	#endif
3887	}
3888
3889
3890	/**
3891	* This does the read, write and seek tests.
3892	*/
3893	void fsPerfIo(void)
3894	{
3895	RTTestISub("I/O");
3896
3897	/*
3898	* Determin the size of the test file.
3899	*/
3900	g_szDir[g_cchDir] = '\0';
3901	RTFOFF cbFree = 0;
3902	RTTESTI_CHECK_RC_RETV(RTFsQuerySizes(g_szDir, NULL, &cbFree, NULL, NULL), VINF_SUCCESS);
3903	uint64_t cbFile = g_cbIoFile;
3904	if (cbFile + _16M < (uint64_t)cbFree)
3905	cbFile = RT_ALIGN_64(cbFile, _64K);
3906	else if (cbFree < _32M)
3907	{
3908	RTTestSkipped(g_hTest, "Insufficent free space: %'RU64 bytes, requires >= 32MB", cbFree);
3909	return;
3910	}
3911	else
3912	{
3913	cbFile = cbFree - (cbFree > _128M ? _64M : _16M);
3914	cbFile = RT_ALIGN_64(cbFile, _64K);
3915	RTTestIPrintf(RTTESTLVL_ALWAYS, "Adjusted file size to %'RU64 bytes, due to %'RU64 bytes free.\n", cbFile, cbFree);
3916	}
3917	if (cbFile < _64K)
3918	{
3919	RTTestSkipped(g_hTest, "Specified test file size too small: %'RU64 bytes, requires >= 64KB", cbFile);
3920	return;
3921	}
3922
3923	/*
3924	* Create a cbFile sized test file.
3925	*/
3926	RTFILE hFile1;
3927	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFile1, InDir(RT_STR_TUPLE("file21")),
3928	RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_READWRITE), VINF_SUCCESS);
3929	RTFILE hFileNoCache;
3930	if (!g_fIgnoreNoCache)
3931	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFileNoCache, g_szDir,
3932	RTFILE_O_OPEN \| RTFILE_O_DENY_NONE \| RTFILE_O_READWRITE \| RTFILE_O_NO_CACHE),
3933	VINF_SUCCESS);
3934	else
3935	{
3936	int rc = RTFileOpen(&hFileNoCache, g_szDir, RTFILE_O_OPEN \| RTFILE_O_DENY_NONE \| RTFILE_O_READWRITE \| RTFILE_O_NO_CACHE);
3937	if (RT_FAILURE(rc))
3938	{
3939	RTTestIPrintf(RTTESTLVL_ALWAYS, "Unable to open I/O file with non-cache flag (%Rrc), skipping related tests.\n", rc);
3940	hFileNoCache = NIL_RTFILE;
3941	}
3942	}
3943	RTFILE hFileWriteThru;
3944	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFileWriteThru, g_szDir,
3945	RTFILE_O_OPEN \| RTFILE_O_DENY_NONE \| RTFILE_O_READWRITE \| RTFILE_O_WRITE_THROUGH),
3946	VINF_SUCCESS);
3947
3948	uint8_t *pbFree = NULL;
3949	int rc = fsPerfIoPrepFile(hFile1, cbFile, &pbFree);
3950	RTMemFree(pbFree);
3951	if (RT_SUCCESS(rc))
3952	{
3953	/*
3954	* Do the testing & profiling.
3955	*/
3956	if (g_fSeek)
3957	fsPerfIoSeek(hFile1, cbFile);
3958
3959	if (g_fReadTests)
3960	fsPerfRead(hFile1, hFileNoCache, cbFile);
3961	if (g_fReadPerf)
3962	for (unsigned i = 0; i < g_cIoBlocks; i++)
3963	fsPerfIoReadBlockSize(hFile1, cbFile, g_acbIoBlocks[i]);
3964	#ifdef FSPERF_TEST_SENDFILE
3965	if (g_fSendFile)
3966	fsPerfSendFile(hFile1, cbFile);
3967	#endif
3968	#ifdef RT_OS_LINUX
3969	if (g_fSplice)
3970	fsPerfSpliceToPipe(hFile1, cbFile);
3971	#endif
3972	if (g_fMMap)
3973	fsPerfMMap(hFile1, hFileNoCache, cbFile);
3974
3975	/* This is destructive to the file content. */
3976	if (g_fWriteTests)
3977	fsPerfWrite(hFile1, hFileNoCache, hFileWriteThru, cbFile);
3978	if (g_fWritePerf)
3979	for (unsigned i = 0; i < g_cIoBlocks; i++)
3980	fsPerfIoWriteBlockSize(hFile1, cbFile, g_acbIoBlocks[i]);
3981	#ifdef RT_OS_LINUX
3982	if (g_fSplice)
3983	fsPerfSpliceToFile(hFile1, cbFile);
3984	#endif
3985	if (g_fFSync)
3986	fsPerfFSync(hFile1, cbFile);
3987	}
3988
3989	RTTESTI_CHECK_RC(RTFileSetSize(hFile1, 0), VINF_SUCCESS);
3990	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
3991	if (hFileNoCache != NIL_RTFILE \|\| !g_fIgnoreNoCache)
3992	RTTESTI_CHECK_RC(RTFileClose(hFileNoCache), VINF_SUCCESS);
3993	RTTESTI_CHECK_RC(RTFileClose(hFileWriteThru), VINF_SUCCESS);
3994	RTTESTI_CHECK_RC(RTFileDelete(g_szDir), VINF_SUCCESS);
3995	}
3996
3997
3998	DECL_FORCE_INLINE(int) fsPerfCopyWorker1(const char pszSrc, const char pszDst)
3999	{
4000	RTFileDelete(pszDst);
4001	return RTFileCopy(pszSrc, pszDst);
4002	}
4003
4004
4005	#ifdef RT_OS_LINUX
4006	DECL_FORCE_INLINE(int) fsPerfCopyWorkerSendFile(RTFILE hFile1, RTFILE hFile2, size_t cbFile)
4007	{
4008	RTTESTI_CHECK_RC_RET(RTFileSeek(hFile2, 0, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS, rcCheck);
4009
4010	loff_t off = 0;
4011	ssize_t cbSent = sendfile((int)RTFileToNative(hFile2), (int)RTFileToNative(hFile1), &off, cbFile);
4012	if (cbSent > 0 && (size_t)cbSent == cbFile)
4013	return 0;
4014
4015	int rc = VERR_GENERAL_FAILURE;
4016	if (cbSent < 0)
4017	{
4018	rc = RTErrConvertFromErrno(errno);
4019	RTTestIFailed("sendfile(file,file,NULL,%#zx) failed (%zd): %d (%Rrc)", cbFile, cbSent, errno, rc);
4020	}
4021	else
4022	RTTestIFailed("sendfile(file,file,NULL,%#zx) returned %#zx, expected %#zx (diff %zd)",
4023	cbFile, cbSent, cbFile, cbSent - cbFile);
4024	return rc;
4025	}
4026	#endif /* RT_OS_LINUX */
4027
4028
4029	static void fsPerfCopy(void)
4030	{
4031	RTTestISub("copy");
4032
4033	/*
4034	* Non-existing files.
4035	*/
4036	RTTESTI_CHECK_RC(RTFileCopy(InEmptyDir(RT_STR_TUPLE("no-such-file")),
4037	InDir2(RT_STR_TUPLE("whatever"))), VERR_FILE_NOT_FOUND);
4038	RTTESTI_CHECK_RC(RTFileCopy(InEmptyDir(RT_STR_TUPLE("no-such-dir" RTPATH_SLASH_STR "no-such-file")),
4039	InDir2(RT_STR_TUPLE("no-such-file"))), FSPERF_VERR_PATH_NOT_FOUND);
4040	RTTESTI_CHECK_RC(RTFileCopy(InDir(RT_STR_TUPLE("known-file" RTPATH_SLASH_STR "no-such-file")),
4041	InDir2(RT_STR_TUPLE("whatever"))), VERR_PATH_NOT_FOUND);
4042
4043	RTTESTI_CHECK_RC(RTFileCopy(InDir(RT_STR_TUPLE("known-file")),
4044	InEmptyDir(RT_STR_TUPLE("no-such-dir" RTPATH_SLASH_STR "no-such-file"))), FSPERF_VERR_PATH_NOT_FOUND);
4045	RTTESTI_CHECK_RC(RTFileCopy(InDir(RT_STR_TUPLE("known-file")),
4046	InDir2(RT_STR_TUPLE("known-file" RTPATH_SLASH_STR "no-such-file"))), VERR_PATH_NOT_FOUND);
4047
4048	/*
4049	* Determin the size of the test file.
4050	* We want to be able to make 1 copy of it.
4051	*/
4052	g_szDir[g_cchDir] = '\0';
4053	RTFOFF cbFree = 0;
4054	RTTESTI_CHECK_RC_RETV(RTFsQuerySizes(g_szDir, NULL, &cbFree, NULL, NULL), VINF_SUCCESS);
4055	uint64_t cbFile = g_cbIoFile;
4056	if (cbFile + _16M < (uint64_t)cbFree)
4057	cbFile = RT_ALIGN_64(cbFile, _64K);
4058	else if (cbFree < _32M)
4059	{
4060	RTTestSkipped(g_hTest, "Insufficent free space: %'RU64 bytes, requires >= 32MB", cbFree);
4061	return;
4062	}
4063	else
4064	{
4065	cbFile = cbFree - (cbFree > _128M ? _64M : _16M);
4066	cbFile = RT_ALIGN_64(cbFile, _64K);
4067	RTTestIPrintf(RTTESTLVL_ALWAYS, "Adjusted file size to %'RU64 bytes, due to %'RU64 bytes free.\n", cbFile, cbFree);
4068	}
4069	if (cbFile < _512K * 2)
4070	{
4071	RTTestSkipped(g_hTest, "Specified test file size too small: %'RU64 bytes, requires >= 1MB", cbFile);
4072	return;
4073	}
4074	cbFile /= 2;
4075
4076	/*
4077	* Create a cbFile sized test file.
4078	*/
4079	RTFILE hFile1;
4080	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFile1, InDir(RT_STR_TUPLE("file22")),
4081	RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_READWRITE), VINF_SUCCESS);
4082	uint8_t *pbFree = NULL;
4083	int rc = fsPerfIoPrepFile(hFile1, cbFile, &pbFree);
4084	RTMemFree(pbFree);
4085	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
4086	if (RT_SUCCESS(rc))
4087	{
4088	/*
4089	* Make copies.
4090	*/
4091	/* plain */
4092	RTFileDelete(InDir2(RT_STR_TUPLE("file23")));
4093	RTTESTI_CHECK_RC(RTFileCopy(g_szDir, g_szDir2), VINF_SUCCESS);
4094	RTTESTI_CHECK_RC(RTFileCopy(g_szDir, g_szDir2), VERR_ALREADY_EXISTS);
4095	RTTESTI_CHECK_RC(RTFileCompare(g_szDir, g_szDir2), VINF_SUCCESS);
4096
4097	/* by handle */
4098	hFile1 = NIL_RTFILE;
4099	RTTESTI_CHECK_RC(RTFileOpen(&hFile1, g_szDir, RTFILE_O_OPEN \| RTFILE_O_DENY_NONE \| RTFILE_O_READ), VINF_SUCCESS);
4100	RTFILE hFile2 = NIL_RTFILE;
4101	RTTESTI_CHECK_RC(RTFileOpen(&hFile2, g_szDir2, RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
4102	RTTESTI_CHECK_RC(RTFileCopyByHandles(hFile1, hFile2), VINF_SUCCESS);
4103	RTTESTI_CHECK_RC(RTFileClose(hFile2), VINF_SUCCESS);
4104	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
4105	RTTESTI_CHECK_RC(RTFileCompare(g_szDir, g_szDir2), VINF_SUCCESS);
4106
4107	/* copy part */
4108	hFile1 = NIL_RTFILE;
4109	RTTESTI_CHECK_RC(RTFileOpen(&hFile1, g_szDir, RTFILE_O_OPEN \| RTFILE_O_DENY_NONE \| RTFILE_O_READ), VINF_SUCCESS);
4110	hFile2 = NIL_RTFILE;
4111	RTTESTI_CHECK_RC(RTFileOpen(&hFile2, g_szDir2, RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
4112	RTTESTI_CHECK_RC(RTFileCopyPart(hFile1, 0, hFile2, 0, cbFile / 2, 0, NULL), VINF_SUCCESS);
4113	RTTESTI_CHECK_RC(RTFileCopyPart(hFile1, cbFile / 2, hFile2, cbFile / 2, cbFile - cbFile / 2, 0, NULL), VINF_SUCCESS);
4114	RTTESTI_CHECK_RC(RTFileClose(hFile2), VINF_SUCCESS);
4115	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
4116	RTTESTI_CHECK_RC(RTFileCompare(g_szDir, g_szDir2), VINF_SUCCESS);
4117
4118	#ifdef RT_OS_LINUX
4119	/*
4120	* On linux we can also use sendfile between two files, except for 2.5.x to 2.6.33.
4121	*/
4122	uint64_t const cbFileMax = RT_MIN(cbFile, UINT32_C(0x7ffff000));
4123	char szRelease[64];
4124	RTSystemQueryOSInfo(RTSYSOSINFO_RELEASE, szRelease, sizeof(szRelease));
4125	bool const fSendFileBetweenFiles = RTStrVersionCompare(szRelease, "2.5.0") < 0
4126	\|\| RTStrVersionCompare(szRelease, "2.6.33") >= 0;
4127	if (fSendFileBetweenFiles)
4128	{
4129	/* Copy the whole file: */
4130	hFile1 = NIL_RTFILE;
4131	RTTESTI_CHECK_RC(RTFileOpen(&hFile1, g_szDir, RTFILE_O_OPEN \| RTFILE_O_DENY_NONE \| RTFILE_O_READ), VINF_SUCCESS);
4132	RTFileDelete(g_szDir2);
4133	hFile2 = NIL_RTFILE;
4134	RTTESTI_CHECK_RC(RTFileOpen(&hFile2, g_szDir2, RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
4135	ssize_t cbSent = sendfile((int)RTFileToNative(hFile2), (int)RTFileToNative(hFile1), NULL, cbFile);
4136	if (cbSent < 0)
4137	RTTestIFailed("sendfile(file,file,NULL,%#zx) failed (%zd): %d (%Rrc)",
4138	cbFile, cbSent, errno, RTErrConvertFromErrno(errno));
4139	else if ((size_t)cbSent != cbFileMax)
4140	RTTestIFailed("sendfile(file,file,NULL,%#zx) returned %#zx, expected %#zx (diff %zd)",
4141	cbFile, cbSent, cbFileMax, cbSent - cbFileMax);
4142	RTTESTI_CHECK_RC(RTFileClose(hFile2), VINF_SUCCESS);
4143	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
4144	RTTESTI_CHECK_RC(RTFileCompare(g_szDir, g_szDir2), VINF_SUCCESS);
4145
4146	/* Try copy a little bit too much: */
4147	if (cbFile == cbFileMax)
4148	{
4149	hFile1 = NIL_RTFILE;
4150	RTTESTI_CHECK_RC(RTFileOpen(&hFile1, g_szDir, RTFILE_O_OPEN \| RTFILE_O_DENY_NONE \| RTFILE_O_READ), VINF_SUCCESS);
4151	RTFileDelete(g_szDir2);
4152	hFile2 = NIL_RTFILE;
4153	RTTESTI_CHECK_RC(RTFileOpen(&hFile2, g_szDir2, RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
4154	size_t cbToCopy = cbFile + RTRandU32Ex(1, _64M);
4155	cbSent = sendfile((int)RTFileToNative(hFile2), (int)RTFileToNative(hFile1), NULL, cbToCopy);
4156	if (cbSent < 0)
4157	RTTestIFailed("sendfile(file,file,NULL,%#zx) failed (%zd): %d (%Rrc)",
4158	cbToCopy, cbSent, errno, RTErrConvertFromErrno(errno));
4159	else if ((size_t)cbSent != cbFile)
4160	RTTestIFailed("sendfile(file,file,NULL,%#zx) returned %#zx, expected %#zx (diff %zd)",
4161	cbToCopy, cbSent, cbFile, cbSent - cbFile);
4162	RTTESTI_CHECK_RC(RTFileClose(hFile2), VINF_SUCCESS);
4163	RTTESTI_CHECK_RC(RTFileCompare(g_szDir, g_szDir2), VINF_SUCCESS);
4164	}
4165
4166	/* Do partial copy: */
4167	hFile2 = NIL_RTFILE;
4168	RTTESTI_CHECK_RC(RTFileOpen(&hFile2, g_szDir2, RTFILE_O_OPEN \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
4169	for (uint32_t i = 0; i < 64; i++)
4170	{
4171	size_t cbToCopy = RTRandU32Ex(0, cbFileMax - 1);
4172	uint32_t const offFile = RTRandU32Ex(1, (uint64_t)RT_MIN(cbFileMax - cbToCopy, UINT32_MAX));
4173	RTTESTI_CHECK_RC_BREAK(RTFileSeek(hFile2, offFile, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS);
4174	loff_t offFile2 = offFile;
4175	cbSent = sendfile((int)RTFileToNative(hFile2), (int)RTFileToNative(hFile1), &offFile2, cbToCopy);
4176	if (cbSent < 0)
4177	RTTestIFailed("sendfile(file,file,%#x,%#zx) failed (%zd): %d (%Rrc)",
4178	offFile, cbToCopy, cbSent, errno, RTErrConvertFromErrno(errno));
4179	else if ((size_t)cbSent != cbToCopy)
4180	RTTestIFailed("sendfile(file,file,%#x,%#zx) returned %#zx, expected %#zx (diff %zd)",
4181	offFile, cbToCopy, cbSent, cbToCopy, cbSent - cbToCopy);
4182	else if (offFile2 != (loff_t)(offFile + cbToCopy))
4183	RTTestIFailed("sendfile(file,file,%#x,%#zx) returned %#zx + off=%#RX64, expected off %#x",
4184	offFile, cbToCopy, cbSent, offFile2, offFile + cbToCopy);
4185	}
4186	RTTESTI_CHECK_RC(RTFileClose(hFile2), VINF_SUCCESS);
4187	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
4188	RTTESTI_CHECK_RC(RTFileCompare(g_szDir, g_szDir2), VINF_SUCCESS);
4189	}
4190	#endif
4191
4192	/*
4193	* Do some benchmarking.
4194	*/
4195	#define PROFILE_COPY_FN(a_szOperation, a_fnCall) \
4196	do \
4197	{ \
4198	/* Estimate how many iterations we need to fill up the given timeslot: */ \
4199	fsPerfYield(); \
4200	uint64_t nsStart = RTTimeNanoTS(); \
4201	uint64_t ns; \
4202	do \
4203	ns = RTTimeNanoTS(); \
4204	while (ns == nsStart); \
4205	nsStart = ns; \
4206	\
4207	uint64_t iIteration = 0; \
4208	do \
4209	{ \
4210	RTTESTI_CHECK_RC(a_fnCall, VINF_SUCCESS); \
4211	iIteration++; \
4212	ns = RTTimeNanoTS() - nsStart; \
4213	} while (ns < RT_NS_10MS); \
4214	ns /= iIteration; \
4215	if (ns > g_nsPerNanoTSCall + 32) \
4216	ns -= g_nsPerNanoTSCall; \
4217	uint64_t cIterations = g_nsTestRun / ns; \
4218	if (cIterations < 2) \
4219	cIterations = 2; \
4220	else if (cIterations & 1) \
4221	cIterations++; \
4222	\
4223	/* Do the actual profiling: */ \
4224	iIteration = 0; \
4225	fsPerfYield(); \
4226	nsStart = RTTimeNanoTS(); \
4227	for (uint32_t iAdjust = 0; iAdjust < 4; iAdjust++) \
4228	{ \
4229	for (; iIteration < cIterations; iIteration++)\
4230	RTTESTI_CHECK_RC(a_fnCall, VINF_SUCCESS); \
4231	ns = RTTimeNanoTS() - nsStart;\
4232	if (ns >= g_nsTestRun - (g_nsTestRun / 10)) \
4233	break; \
4234	cIterations += cIterations / 4; \
4235	if (cIterations & 1) \
4236	cIterations++; \
4237	nsStart += g_nsPerNanoTSCall; \
4238	} \
4239	RTTestIValueF(ns / iIteration, \
4240	RTTESTUNIT_NS_PER_OCCURRENCE, a_szOperation " latency"); \
4241	RTTestIValueF((uint64_t)((uint64_t)iIteration * cbFile / ((double)ns / RT_NS_1SEC)), \
4242	RTTESTUNIT_BYTES_PER_SEC, a_szOperation " throughput"); \
4243	RTTestIValueF((uint64_t)iIteration * cbFile, \
4244	RTTESTUNIT_BYTES, a_szOperation " bytes"); \
4245	RTTestIValueF(iIteration, \
4246	RTTESTUNIT_OCCURRENCES, a_szOperation " iterations"); \
4247	if (g_fShowDuration) \
4248	RTTestIValueF(ns, RTTESTUNIT_NS, a_szOperation " duration"); \
4249	} while (0)
4250
4251	PROFILE_COPY_FN("RTFileCopy/Replace", fsPerfCopyWorker1(g_szDir, g_szDir2));
4252
4253	hFile1 = NIL_RTFILE;
4254	RTTESTI_CHECK_RC(RTFileOpen(&hFile1, g_szDir, RTFILE_O_OPEN \| RTFILE_O_DENY_NONE \| RTFILE_O_READ), VINF_SUCCESS);
4255	RTFileDelete(g_szDir2);
4256	hFile2 = NIL_RTFILE;
4257	RTTESTI_CHECK_RC(RTFileOpen(&hFile2, g_szDir2, RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
4258	PROFILE_COPY_FN("RTFileCopyByHandles/Overwrite", RTFileCopyByHandles(hFile1, hFile2));
4259	RTTESTI_CHECK_RC(RTFileClose(hFile2), VINF_SUCCESS);
4260	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
4261
4262	/* We could benchmark RTFileCopyPart with various block sizes and whatnot...
4263	But it's currently well covered by the two previous operations. */
4264
4265	#ifdef RT_OS_LINUX
4266	if (fSendFileBetweenFiles)
4267	{
4268	hFile1 = NIL_RTFILE;
4269	RTTESTI_CHECK_RC(RTFileOpen(&hFile1, g_szDir, RTFILE_O_OPEN \| RTFILE_O_DENY_NONE \| RTFILE_O_READ), VINF_SUCCESS);
4270	RTFileDelete(g_szDir2);
4271	hFile2 = NIL_RTFILE;
4272	RTTESTI_CHECK_RC(RTFileOpen(&hFile2, g_szDir2, RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
4273	PROFILE_COPY_FN("sendfile/overwrite", fsPerfCopyWorkerSendFile(hFile1, hFile2, cbFileMax));
4274	RTTESTI_CHECK_RC(RTFileClose(hFile2), VINF_SUCCESS);
4275	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
4276	}
4277	#endif
4278	}
4279
4280	/*
4281	* Clean up.
4282	*/
4283	RTFileDelete(InDir2(RT_STR_TUPLE("file22c1")));
4284	RTFileDelete(InDir2(RT_STR_TUPLE("file22c2")));
4285	RTFileDelete(InDir2(RT_STR_TUPLE("file22c3")));
4286	RTTESTI_CHECK_RC(RTFileDelete(g_szDir), VINF_SUCCESS);
4287	}
4288
4289
4290	/**
4291	* Display the usage to @a pStrm.
4292	*/
4293	static void Usage(PRTSTREAM pStrm)
4294	{
4295	char szExec[FSPERF_MAX_PATH];
4296	RTStrmPrintf(pStrm, "usage: %s <-d <testdir>> [options]\n",
4297	RTPathFilename(RTProcGetExecutablePath(szExec, sizeof(szExec))));
4298	RTStrmPrintf(pStrm, "\n");
4299	RTStrmPrintf(pStrm, "options: \n");
4300
4301	for (unsigned i = 0; i < RT_ELEMENTS(g_aCmdOptions); i++)
4302	{
4303	char szHelp[80];
4304	const char *pszHelp;
4305	switch (g_aCmdOptions[i].iShort)
4306	{
4307	case 'd': pszHelp = "The directory to use for testing. default: CWD/fstestdir"; break;
4308	case 'r': pszHelp = "Don't abspath test dir (good for deep dirs). default: disabled"; break;
4309	case 'e': pszHelp = "Enables all tests. default: -e"; break;
4310	case 'z': pszHelp = "Disables all tests. default: -e"; break;
4311	case 's': pszHelp = "Set benchmark duration in seconds. default: 10 sec"; break;
4312	case 'm': pszHelp = "Set benchmark duration in milliseconds. default: 10000 ms"; break;
4313	case 'v': pszHelp = "More verbose execution."; break;
4314	case 'q': pszHelp = "Quiet execution."; break;
4315	case 'h': pszHelp = "Displays this help and exit"; break;
4316	case 'V': pszHelp = "Displays the program revision"; break;
4317	case kCmdOpt_ShowDuration: pszHelp = "Show duration of profile runs. default: --no-show-duration"; break;
4318	case kCmdOpt_NoShowDuration: pszHelp = "Hide duration of profile runs. default: --no-show-duration"; break;
4319	case kCmdOpt_ShowIterations: pszHelp = "Show iteration count for profile runs. default: --no-show-iterations"; break;
4320	case kCmdOpt_NoShowIterations: pszHelp = "Hide iteration count for profile runs. default: --no-show-iterations"; break;
4321	case kCmdOpt_ManyFiles: pszHelp = "Count of files in big test dir. default: --many-files 10000"; break;
4322	case kCmdOpt_NoManyFiles: pszHelp = "Skip big test dir with many files. default: --many-files 10000"; break;
4323	case kCmdOpt_ManyTreeFilesPerDir: pszHelp = "Count of files per directory in test tree. default: 640"; break;
4324	case kCmdOpt_ManyTreeSubdirsPerDir: pszHelp = "Count of subdirs per directory in test tree. default: 16"; break;
4325	case kCmdOpt_ManyTreeDepth: pszHelp = "Depth of test tree (not counting root). default: 1"; break;
4326	case kCmdOpt_IgnoreNoCache: pszHelp = "Ignore error wrt no-cache handle. default: --no-ignore-no-cache"; break;
4327	case kCmdOpt_NoIgnoreNoCache: pszHelp = "Do not ignore error wrt no-cache handle. default: --no-ignore-no-cache"; break;
4328	case kCmdOpt_IoFileSize: pszHelp = "Size of file used for I/O tests. default: 512 MB"; break;
4329	case kCmdOpt_SetBlockSize: pszHelp = "Sets single I/O block size (in bytes)."; break;
4330	case kCmdOpt_AddBlockSize: pszHelp = "Adds an I/O block size (in bytes)."; break;
4331	default:
4332	if (g_aCmdOptions[i].iShort >= kCmdOpt_First)
4333	{
4334	if (RTStrStartsWith(g_aCmdOptions[i].pszLong, "--no-"))
4335	RTStrPrintf(szHelp, sizeof(szHelp), "Disables the '%s' test.", g_aCmdOptions[i].pszLong + 5);
4336	else
4337	RTStrPrintf(szHelp, sizeof(szHelp), "Enables the '%s' test.", g_aCmdOptions[i].pszLong + 2);
4338	pszHelp = szHelp;
4339	}
4340	else
4341	pszHelp = "Option undocumented";
4342	break;
4343	}
4344	if ((unsigned)g_aCmdOptions[i].iShort < 127U)
4345	{
4346	char szOpt[64];
4347	RTStrPrintf(szOpt, sizeof(szOpt), "%s, -%c", g_aCmdOptions[i].pszLong, g_aCmdOptions[i].iShort);
4348	RTStrmPrintf(pStrm, " %-19s %s\n", szOpt, pszHelp);
4349	}
4350	else
4351	RTStrmPrintf(pStrm, " %-19s %s\n", g_aCmdOptions[i].pszLong, pszHelp);
4352	}
4353	}
4354
4355
4356	static uint32_t fsPerfCalcManyTreeFiles(void)
4357	{
4358	uint32_t cDirs = 1;
4359	for (uint32_t i = 0, cDirsAtLevel = 1; i < g_cManyTreeDepth; i++)
4360	{
4361	cDirs += cDirsAtLevel * g_cManyTreeSubdirsPerDir;
4362	cDirsAtLevel *= g_cManyTreeSubdirsPerDir;
4363	}
4364	return g_cManyTreeFilesPerDir * cDirs;
4365	}
4366
4367
4368	int main(int argc, char *argv[])
4369	{
4370	/*
4371	* Init IPRT and globals.
4372	*/
4373	int rc = RTTestInitAndCreate("FsPerf", &g_hTest);
4374	if (rc)
4375	return rc;
4376	RTListInit(&g_ManyTreeHead);
4377
4378	/*
4379	* Default values.
4380	*/
4381	char szDefaultDir[32];
4382	const char *pszDir = szDefaultDir;
4383	RTStrPrintf(szDefaultDir, sizeof(szDefaultDir), "fstestdir-%u" RTPATH_SLASH_STR, RTProcSelf());
4384
4385	RTGETOPTUNION ValueUnion;
4386	RTGETOPTSTATE GetState;
4387	RTGetOptInit(&GetState, argc, argv, g_aCmdOptions, RT_ELEMENTS(g_aCmdOptions), 1, 0 /* fFlags */);
4388	while ((rc = RTGetOpt(&GetState, &ValueUnion)) != 0)
4389	{
4390	switch (rc)
4391	{
4392	case 'd':
4393	pszDir = ValueUnion.psz;
4394	break;
4395
4396	case 'r':
4397	g_fRelativeDir = true;
4398	break;
4399
4400	case 's':
4401	if (ValueUnion.u32 == 0)
4402	g_nsTestRun = RT_NS_1SEC_64 * 10;
4403	else
4404	g_nsTestRun = ValueUnion.u32 * RT_NS_1SEC_64;
4405	break;
4406
4407	case 'm':
4408	if (ValueUnion.u64 == 0)
4409	g_nsTestRun = RT_NS_1SEC_64 * 10;
4410	else
4411	g_nsTestRun = ValueUnion.u64 * RT_NS_1MS;
4412	break;
4413
4414	case 'e':
4415	g_fManyFiles = true;
4416	g_fOpen = true;
4417	g_fFStat = true;
4418	g_fFChMod = true;
4419	g_fFUtimes = true;
4420	g_fStat = true;
4421	g_fChMod = true;
4422	g_fUtimes = true;
4423	g_fRename = true;
4424	g_fDirOpen = true;
4425	g_fDirEnum = true;
4426	g_fMkRmDir = true;
4427	g_fStatVfs = true;
4428	g_fRm = true;
4429	g_fChSize = true;
4430	g_fReadTests = true;
4431	g_fReadPerf = true;
4432	#ifdef FSPERF_TEST_SENDFILE
4433	g_fSendFile = true;
4434	#endif
4435	#ifdef RT_OS_LINUX
4436	g_fSplice = true;
4437	#endif
4438	g_fWriteTests= true;
4439	g_fWritePerf = true;
4440	g_fSeek = true;
4441	g_fFSync = true;
4442	g_fMMap = true;
4443	g_fCopy = true;
4444	break;
4445
4446	case 'z':
4447	g_fManyFiles = false;
4448	g_fOpen = false;
4449	g_fFStat = false;
4450	g_fFChMod = false;
4451	g_fFUtimes = false;
4452	g_fStat = false;
4453	g_fChMod = false;
4454	g_fUtimes = false;
4455	g_fRename = false;
4456	g_fDirOpen = false;
4457	g_fDirEnum = false;
4458	g_fMkRmDir = false;
4459	g_fStatVfs = false;
4460	g_fRm = false;
4461	g_fChSize = false;
4462	g_fReadTests = false;
4463	g_fReadPerf = false;
4464	#ifdef FSPERF_TEST_SENDFILE
4465	g_fSendFile = false;
4466	#endif
4467	#ifdef RT_OS_LINUX
4468	g_fSplice = false;
4469	#endif
4470	g_fWriteTests= false;
4471	g_fWritePerf = false;
4472	g_fSeek = false;
4473	g_fFSync = false;
4474	g_fMMap = false;
4475	g_fCopy = false;
4476	break;
4477
4478	#define CASE_OPT(a_Stem) \
4479	case RT_CONCAT(kCmdOpt_,a_Stem): RT_CONCAT(g_f,a_Stem) = true; break; \
4480	case RT_CONCAT(kCmdOpt_No,a_Stem): RT_CONCAT(g_f,a_Stem) = false; break
4481	CASE_OPT(Open);
4482	CASE_OPT(FStat);
4483	CASE_OPT(FChMod);
4484	CASE_OPT(FUtimes);
4485	CASE_OPT(Stat);
4486	CASE_OPT(ChMod);
4487	CASE_OPT(Utimes);
4488	CASE_OPT(Rename);
4489	CASE_OPT(DirOpen);
4490	CASE_OPT(DirEnum);
4491	CASE_OPT(MkRmDir);
4492	CASE_OPT(StatVfs);
4493	CASE_OPT(Rm);
4494	CASE_OPT(ChSize);
4495	CASE_OPT(ReadTests);
4496	CASE_OPT(ReadPerf);
4497	#ifdef FSPERF_TEST_SENDFILE
4498	CASE_OPT(SendFile);
4499	#endif
4500	#ifdef RT_OS_LINUX
4501	CASE_OPT(Splice);
4502	#endif
4503	CASE_OPT(WriteTests);
4504	CASE_OPT(WritePerf);
4505	CASE_OPT(Seek);
4506	CASE_OPT(FSync);
4507	CASE_OPT(MMap);
4508	CASE_OPT(IgnoreNoCache);
4509	CASE_OPT(Copy);
4510
4511	CASE_OPT(ShowDuration);
4512	CASE_OPT(ShowIterations);
4513	#undef CASE_OPT
4514
4515	case kCmdOpt_ManyFiles:
4516	g_fManyFiles = ValueUnion.u32 > 0;
4517	g_cManyFiles = ValueUnion.u32;
4518	break;
4519
4520	case kCmdOpt_NoManyFiles:
4521	g_fManyFiles = false;
4522	break;
4523
4524	case kCmdOpt_ManyTreeFilesPerDir:
4525	if (ValueUnion.u32 > 0 && ValueUnion.u32 <= _64M)
4526	{
4527	g_cManyTreeFilesPerDir = ValueUnion.u32;
4528	g_cManyTreeFiles = fsPerfCalcManyTreeFiles();
4529	break;
4530	}
4531	RTTestFailed(g_hTest, "Out of range --files-per-dir value: %u (%#x)\n", ValueUnion.u32, ValueUnion.u32);
4532	return RTTestSummaryAndDestroy(g_hTest);
4533
4534	case kCmdOpt_ManyTreeSubdirsPerDir:
4535	if (ValueUnion.u32 > 0 && ValueUnion.u32 <= 1024)
4536	{
4537	g_cManyTreeSubdirsPerDir = ValueUnion.u32;
4538	g_cManyTreeFiles = fsPerfCalcManyTreeFiles();
4539	break;
4540	}
4541	RTTestFailed(g_hTest, "Out of range --subdirs-per-dir value: %u (%#x)\n", ValueUnion.u32, ValueUnion.u32);
4542	return RTTestSummaryAndDestroy(g_hTest);
4543
4544	case kCmdOpt_ManyTreeDepth:
4545	if (ValueUnion.u32 <= 8)
4546	{
4547	g_cManyTreeDepth = ValueUnion.u32;
4548	g_cManyTreeFiles = fsPerfCalcManyTreeFiles();
4549	break;
4550	}
4551	RTTestFailed(g_hTest, "Out of range --tree-depth value: %u (%#x)\n", ValueUnion.u32, ValueUnion.u32);
4552	return RTTestSummaryAndDestroy(g_hTest);
4553
4554	case kCmdOpt_IoFileSize:
4555	if (ValueUnion.u64 == 0)
4556	g_cbIoFile = _512M;
4557	else
4558	g_cbIoFile = ValueUnion.u64;
4559	break;
4560
4561	case kCmdOpt_SetBlockSize:
4562	if (ValueUnion.u32 > 0)
4563	{
4564	g_cIoBlocks = 1;
4565	g_acbIoBlocks[0] = ValueUnion.u32;
4566	}
4567	else
4568	{
4569	RTTestFailed(g_hTest, "Invalid I/O block size: %u (%#x)\n", ValueUnion.u32, ValueUnion.u32);
4570	return RTTestSummaryAndDestroy(g_hTest);
4571	}
4572	break;
4573
4574	case kCmdOpt_AddBlockSize:
4575	if (g_cIoBlocks >= RT_ELEMENTS(g_acbIoBlocks))
4576	RTTestFailed(g_hTest, "Too many I/O block sizes: max %u\n", RT_ELEMENTS(g_acbIoBlocks));
4577	else if (ValueUnion.u32 == 0)
4578	RTTestFailed(g_hTest, "Invalid I/O block size: %u (%#x)\n", ValueUnion.u32, ValueUnion.u32);
4579	else
4580	{
4581	g_acbIoBlocks[g_cIoBlocks++] = ValueUnion.u32;
4582	break;
4583	}
4584	return RTTestSummaryAndDestroy(g_hTest);
4585
4586	case 'q':
4587	g_uVerbosity = 0;
4588	break;
4589
4590	case 'v':
4591	g_uVerbosity++;
4592	break;
4593
4594	case 'h':
4595	Usage(g_pStdOut);
4596	return RTEXITCODE_SUCCESS;
4597
4598	case 'V':
4599	{
4600	char szRev[] = "$Revision: 78180 $";
4601	szRev[RT_ELEMENTS(szRev) - 2] = '\0';
4602	RTPrintf(RTStrStrip(strchr(szRev, ':') + 1));
4603	return RTEXITCODE_SUCCESS;
4604	}
4605
4606	default:
4607	return RTGetOptPrintError(rc, &ValueUnion);
4608	}
4609	}
4610
4611	/*
4612	* Populate g_szDir.
4613	*/
4614	if (!g_fRelativeDir)
4615	rc = RTPathAbs(pszDir, g_szDir, sizeof(g_szDir) - FSPERF_MAX_NEEDED_PATH);
4616	else
4617	rc = RTStrCopy(g_szDir, sizeof(g_szDir) - FSPERF_MAX_NEEDED_PATH, pszDir);
4618	if (RT_FAILURE(rc))
4619	{
4620	RTTestFailed(g_hTest, "%s(%s) failed: %Rrc\n", g_fRelativeDir ? "RTStrCopy" : "RTAbsPath", pszDir, rc);
4621	return RTTestSummaryAndDestroy(g_hTest);
4622	}
4623	RTPathEnsureTrailingSeparator(g_szDir, sizeof(g_szDir));
4624	g_cchDir = strlen(g_szDir);
4625
4626	/*
4627	* Create the test directory with an 'empty' subdirectory under it,
4628	* execute the tests, and remove directory when done.
4629	*/
4630	RTTestBanner(g_hTest);
4631	if (!RTPathExists(g_szDir))
4632	{
4633	/* The base dir: */
4634	rc = RTDirCreate(g_szDir, 0755,
4635	RTDIRCREATE_FLAGS_NOT_CONTENT_INDEXED_DONT_SET \| RTDIRCREATE_FLAGS_NOT_CONTENT_INDEXED_NOT_CRITICAL);
4636	if (RT_SUCCESS(rc))
4637	{
4638	RTTestIPrintf(RTTESTLVL_ALWAYS, "Test dir: %s\n", g_szDir);
4639	rc = fsPrepTestArea();
4640	if (RT_SUCCESS(rc))
4641	{
4642	/* Profile RTTimeNanoTS(). */
4643	fsPerfNanoTS();
4644
4645	/* Do tests: */
4646	if (g_fManyFiles)
4647	fsPerfManyFiles();
4648	if (g_fOpen)
4649	fsPerfOpen();
4650	if (g_fFStat)
4651	fsPerfFStat();
4652	if (g_fFChMod)
4653	fsPerfFChMod();
4654	if (g_fFUtimes)
4655	fsPerfFUtimes();
4656	if (g_fStat)
4657	fsPerfStat();
4658	if (g_fChMod)
4659	fsPerfChmod();
4660	if (g_fUtimes)
4661	fsPerfUtimes();
4662	if (g_fRename)
4663	fsPerfRename();
4664	if (g_fDirOpen)
4665	vsPerfDirOpen();
4666	if (g_fDirEnum)
4667	vsPerfDirEnum();
4668	if (g_fMkRmDir)
4669	fsPerfMkRmDir();
4670	if (g_fStatVfs)
4671	fsPerfStatVfs();
4672	if (g_fRm \|\| g_fManyFiles)
4673	fsPerfRm(); /* deletes manyfiles and manytree */
4674	if (g_fChSize)
4675	fsPerfChSize();
4676	if ( g_fReadPerf \|\| g_fReadTests \|\| g_fWritePerf \|\| g_fWriteTests
4677	#ifdef FSPERF_TEST_SENDFILE
4678	\|\| g_fSendFile
4679	#endif
4680	#ifdef RT_OS_LINUX
4681	\|\| g_fSplice
4682	#endif
4683	\|\| g_fSeek \|\| g_fFSync \|\| g_fMMap)
4684	fsPerfIo();
4685	if (g_fCopy)
4686	fsPerfCopy();
4687	}
4688
4689	/* Cleanup: */
4690	g_szDir[g_cchDir] = '\0';
4691	rc = RTDirRemoveRecursive(g_szDir, RTDIRRMREC_F_CONTENT_AND_DIR);
4692	if (RT_FAILURE(rc))
4693	RTTestFailed(g_hTest, "RTDirRemoveRecursive(%s,) -> %Rrc\n", g_szDir, rc);
4694	}
4695	else
4696	RTTestFailed(g_hTest, "RTDirCreate(%s) -> %Rrc\n", g_szDir, rc);
4697	}
4698	else
4699	RTTestFailed(g_hTest, "Test directory already exists: %s\n", g_szDir);
4700
4701	return RTTestSummaryAndDestroy(g_hTest);
4702	}
4703

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source: vbox/trunk/src/VBox/ValidationKit/utils/fs/FsPerf.cpp@ 78180

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