FsPerf.cpp@ 77831

Last change on this file since 77831 was 77831, checked in by vboxsync, 6 years ago
FsPerf: Added file copy tests and benchmark. bugref:9172
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1	/* $Id: FsPerf.cpp 77831 2019-03-21 18:08:12Z 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	#include <iprt/process.h>
50	#include <iprt/rand.h>
51	#include <iprt/string.h>
52	#include <iprt/stream.h>
53	#include <iprt/test.h>
54	#include <iprt/time.h>
55	#include <iprt/thread.h>
56	#include <iprt/zero.h>
57
58	#ifdef RT_OS_WINDOWS
59	# include <iprt/nt/nt-and-windows.h>
60	#else
61	# include <errno.h>
62	# include <unistd.h>
63	# include <sys/types.h>
64	# include <sys/fcntl.h>
65	# ifndef RT_OS_OS2
66	# include <sys/mman.h>
67	# include <sys/uio.h>
68	# endif
69	#endif
70
71
72	/*********************************************************************************************************************************
73	* Defined Constants And Macros *
74	*********************************************************************************************************************************/
75	/**
76	* Macro for profiling @a a_fnCall (typically forced inline) for about @a a_cNsTarget ns.
77	*
78	* Always does an even number of iterations.
79	*/
80	#define PROFILE_FN(a_fnCall, a_cNsTarget, a_szDesc) \
81	do { \
82	/* Estimate how many iterations we need to fill up the given timeslot: */ \
83	fsPerfYield(); \
84	uint64_t nsStart = RTTimeNanoTS(); \
85	uint64_t nsPrf; \
86	do \
87	nsPrf = RTTimeNanoTS(); \
88	while (nsPrf == nsStart); \
89	nsStart = nsPrf; \
90	\
91	uint64_t iIteration = 0; \
92	do \
93	{ \
94	RTTESTI_CHECK_RC(a_fnCall, VINF_SUCCESS); \
95	iIteration++; \
96	nsPrf = RTTimeNanoTS() - nsStart; \
97	} while (nsPrf < RT_NS_10MS \|\| (iIteration & 1)); \
98	nsPrf /= iIteration; \
99	if (nsPrf > g_nsPerNanoTSCall + 32) \
100	nsPrf -= g_nsPerNanoTSCall; \
101	\
102	uint64_t cIterations = (a_cNsTarget) / nsPrf; \
103	if (cIterations <= 1) \
104	cIterations = 2; \
105	else if (cIterations & 1) \
106	cIterations++; \
107	\
108	/* Do the actual profiling: */ \
109	fsPerfYield(); \
110	iIteration = 0; \
111	nsStart = RTTimeNanoTS(); \
112	for (; iIteration < cIterations; iIteration++) \
113	RTTESTI_CHECK_RC(a_fnCall, VINF_SUCCESS); \
114	nsPrf = RTTimeNanoTS() - nsStart; \
115	RTTestIValue(a_szDesc, nsPrf / cIterations, RTTESTUNIT_NS_PER_OCCURRENCE); \
116	if (g_fShowDuration) \
117	RTTestIValueF(nsPrf, RTTESTUNIT_NS, "%s duration", a_szDesc); \
118	if (g_fShowIterations) \
119	RTTestIValueF(iIteration, RTTESTUNIT_OCCURRENCES, "%s iterations", a_szDesc); \
120	} while (0)
121
122
123	/**
124	* Macro for profiling an operation on each file in the manytree directory tree.
125	*
126	* Always does an even number of tree iterations.
127	*/
128	#define PROFILE_MANYTREE_FN(a_szPath, a_fnCall, a_cEstimationIterations, a_cNsTarget, a_szDesc) \
129	do { \
130	if (!g_fManyFiles) \
131	break; \
132	\
133	/* Estimate how many iterations we need to fill up the given timeslot: */ \
134	fsPerfYield(); \
135	uint64_t nsStart = RTTimeNanoTS(); \
136	uint64_t ns; \
137	do \
138	ns = RTTimeNanoTS(); \
139	while (ns == nsStart); \
140	nsStart = ns; \
141	\
142	PFSPERFNAMEENTRY pCur; \
143	uint64_t iIteration = 0; \
144	do \
145	{ \
146	RTListForEach(&g_ManyTreeHead, pCur, FSPERFNAMEENTRY, Entry) \
147	{ \
148	memcpy(a_szPath, pCur->szName, pCur->cchName); \
149	for (uint32_t i = 0; i < g_cManyTreeFilesPerDir; i++) \
150	{ \
151	RTStrFormatU32(&a_szPath[pCur->cchName], sizeof(a_szPath) - pCur->cchName, i, 10, 5, 5, RTSTR_F_ZEROPAD); \
152	RTTESTI_CHECK_RC(a_fnCall, VINF_SUCCESS); \
153	} \
154	} \
155	iIteration++; \
156	ns = RTTimeNanoTS() - nsStart; \
157	} while (ns < RT_NS_10MS \|\| (iIteration & 1)); \
158	ns /= iIteration; \
159	if (ns > g_nsPerNanoTSCall + 32) \
160	ns -= g_nsPerNanoTSCall; \
161	\
162	uint32_t cIterations = (a_cNsTarget) / ns; \
163	if (cIterations <= 1) \
164	cIterations = 2; \
165	else if (cIterations & 1) \
166	cIterations++; \
167	\
168	/* Do the actual profiling: */ \
169	fsPerfYield(); \
170	uint32_t cCalls = 0; \
171	nsStart = RTTimeNanoTS(); \
172	for (iIteration = 0; iIteration < cIterations; iIteration++) \
173	{ \
174	RTListForEach(&g_ManyTreeHead, pCur, FSPERFNAMEENTRY, Entry) \
175	{ \
176	memcpy(a_szPath, pCur->szName, pCur->cchName); \
177	for (uint32_t i = 0; i < g_cManyTreeFilesPerDir; i++) \
178	{ \
179	RTStrFormatU32(&a_szPath[pCur->cchName], sizeof(a_szPath) - pCur->cchName, i, 10, 5, 5, RTSTR_F_ZEROPAD); \
180	RTTESTI_CHECK_RC(a_fnCall, VINF_SUCCESS); \
181	cCalls++; \
182	} \
183	} \
184	} \
185	ns = RTTimeNanoTS() - nsStart; \
186	RTTestIValueF(ns / cCalls, RTTESTUNIT_NS_PER_OCCURRENCE, a_szDesc); \
187	if (g_fShowDuration) \
188	RTTestIValueF(ns, RTTESTUNIT_NS, "%s duration", a_szDesc); \
189	if (g_fShowIterations) \
190	RTTestIValueF(iIteration, RTTESTUNIT_OCCURRENCES, "%s iterations", a_szDesc); \
191	} while (0)
192
193
194	/**
195	* Execute a_fnCall for each file in the manytree.
196	*/
197	#define DO_MANYTREE_FN(a_szPath, a_fnCall) \
198	do { \
199	PFSPERFNAMEENTRY pCur; \
200	RTListForEach(&g_ManyTreeHead, pCur, FSPERFNAMEENTRY, Entry) \
201	{ \
202	memcpy(a_szPath, pCur->szName, pCur->cchName); \
203	for (uint32_t i = 0; i < g_cManyTreeFilesPerDir; i++) \
204	{ \
205	RTStrFormatU32(&a_szPath[pCur->cchName], sizeof(a_szPath) - pCur->cchName, i, 10, 5, 5, RTSTR_F_ZEROPAD); \
206	a_fnCall; \
207	} \
208	} \
209	} while (0)
210
211
212	/** @def FSPERF_VERR_PATH_NOT_FOUND
213	* Hides the fact that we only get VERR_PATH_NOT_FOUND on non-unix systems. */
214	#if defined(RT_OS_WINDOWS) //\|\| defined(RT_OS_OS2) - using posix APIs IIRC, so lost in translation.
215	# define FSPERF_VERR_PATH_NOT_FOUND VERR_PATH_NOT_FOUND
216	#else
217	# define FSPERF_VERR_PATH_NOT_FOUND VERR_FILE_NOT_FOUND
218	#endif
219
220
221	/*********************************************************************************************************************************
222	* Structures and Typedefs *
223	*********************************************************************************************************************************/
224	typedef struct FSPERFNAMEENTRY
225	{
226	RTLISTNODE Entry;
227	uint16_t cchName;
228	char szName[RT_FLEXIBLE_ARRAY];
229	} FSPERFNAMEENTRY;
230	typedef FSPERFNAMEENTRY *PFSPERFNAMEENTRY;
231
232
233	enum
234	{
235	kCmdOpt_First = 128,
236
237	kCmdOpt_ManyFiles = kCmdOpt_First,
238	kCmdOpt_NoManyFiles,
239	kCmdOpt_Open,
240	kCmdOpt_NoOpen,
241	kCmdOpt_FStat,
242	kCmdOpt_NoFStat,
243	kCmdOpt_FChMod,
244	kCmdOpt_NoFChMod,
245	kCmdOpt_FUtimes,
246	kCmdOpt_NoFUtimes,
247	kCmdOpt_Stat,
248	kCmdOpt_NoStat,
249	kCmdOpt_ChMod,
250	kCmdOpt_NoChMod,
251	kCmdOpt_Utimes,
252	kCmdOpt_NoUtimes,
253	kCmdOpt_Rename,
254	kCmdOpt_NoRename,
255	kCmdOpt_DirOpen,
256	kCmdOpt_NoDirOpen,
257	kCmdOpt_DirEnum,
258	kCmdOpt_NoDirEnum,
259	kCmdOpt_MkRmDir,
260	kCmdOpt_NoMkRmDir,
261	kCmdOpt_StatVfs,
262	kCmdOpt_NoStatVfs,
263	kCmdOpt_Rm,
264	kCmdOpt_NoRm,
265	kCmdOpt_ChSize,
266	kCmdOpt_NoChSize,
267	kCmdOpt_ReadPerf,
268	kCmdOpt_NoReadPerf,
269	kCmdOpt_ReadTests,
270	kCmdOpt_NoReadTests,
271	kCmdOpt_WritePerf,
272	kCmdOpt_NoWritePerf,
273	kCmdOpt_WriteTests,
274	kCmdOpt_NoWriteTests,
275	kCmdOpt_Seek,
276	kCmdOpt_NoSeek,
277	kCmdOpt_FSync,
278	kCmdOpt_NoFSync,
279	kCmdOpt_MMap,
280	kCmdOpt_NoMMap,
281	kCmdOpt_IgnoreNoCache,
282	kCmdOpt_NoIgnoreNoCache,
283	kCmdOpt_IoFileSize,
284	kCmdOpt_SetBlockSize,
285	kCmdOpt_AddBlockSize,
286	kCmdOpt_Copy,
287	kCmdOpt_NoCopy,
288
289	kCmdOpt_ShowDuration,
290	kCmdOpt_NoShowDuration,
291	kCmdOpt_ShowIterations,
292	kCmdOpt_NoShowIterations,
293
294	kCmdOpt_ManyTreeFilesPerDir,
295	kCmdOpt_ManyTreeSubdirsPerDir,
296	kCmdOpt_ManyTreeDepth,
297
298	kCmdOpt_End
299	};
300
301
302	/*********************************************************************************************************************************
303	* Global Variables *
304	*********************************************************************************************************************************/
305	/** Command line parameters */
306	static const RTGETOPTDEF g_aCmdOptions[] =
307	{
308	{ "--dir", 'd', RTGETOPT_REQ_STRING },
309	{ "--seconds", 's', RTGETOPT_REQ_UINT32 },
310	{ "--milliseconds", 'm', RTGETOPT_REQ_UINT64 },
311
312	{ "--enable-all", 'e', RTGETOPT_REQ_NOTHING },
313	{ "--disable-all", 'z', RTGETOPT_REQ_NOTHING },
314
315	{ "--many-files", kCmdOpt_ManyFiles, RTGETOPT_REQ_UINT32 },
316	{ "--no-many-files", kCmdOpt_NoManyFiles, RTGETOPT_REQ_NOTHING },
317	{ "--files-per-dir", kCmdOpt_ManyTreeFilesPerDir, RTGETOPT_REQ_UINT32 },
318	{ "--subdirs-per-dir", kCmdOpt_ManyTreeSubdirsPerDir, RTGETOPT_REQ_UINT32 },
319	{ "--tree-depth", kCmdOpt_ManyTreeDepth, RTGETOPT_REQ_UINT32 },
320
321	{ "--open", kCmdOpt_Open, RTGETOPT_REQ_NOTHING },
322	{ "--no-open", kCmdOpt_NoOpen, RTGETOPT_REQ_NOTHING },
323	{ "--fstat", kCmdOpt_FStat, RTGETOPT_REQ_NOTHING },
324	{ "--no-fstat", kCmdOpt_NoFStat, RTGETOPT_REQ_NOTHING },
325	{ "--fchmod", kCmdOpt_FChMod, RTGETOPT_REQ_NOTHING },
326	{ "--no-fchmod", kCmdOpt_NoFChMod, RTGETOPT_REQ_NOTHING },
327	{ "--futimes", kCmdOpt_FUtimes, RTGETOPT_REQ_NOTHING },
328	{ "--no-futimes", kCmdOpt_NoFUtimes, RTGETOPT_REQ_NOTHING },
329	{ "--stat", kCmdOpt_Stat, RTGETOPT_REQ_NOTHING },
330	{ "--no-stat", kCmdOpt_NoStat, RTGETOPT_REQ_NOTHING },
331	{ "--chmod", kCmdOpt_ChMod, RTGETOPT_REQ_NOTHING },
332	{ "--no-chmod", kCmdOpt_NoChMod, RTGETOPT_REQ_NOTHING },
333	{ "--utimes", kCmdOpt_Utimes, RTGETOPT_REQ_NOTHING },
334	{ "--no-utimes", kCmdOpt_NoUtimes, RTGETOPT_REQ_NOTHING },
335	{ "--rename", kCmdOpt_Rename, RTGETOPT_REQ_NOTHING },
336	{ "--no-rename", kCmdOpt_NoRename, RTGETOPT_REQ_NOTHING },
337	{ "--dir-open", kCmdOpt_DirOpen, RTGETOPT_REQ_NOTHING },
338	{ "--no-dir-open", kCmdOpt_NoDirOpen, RTGETOPT_REQ_NOTHING },
339	{ "--dir-enum", kCmdOpt_DirEnum, RTGETOPT_REQ_NOTHING },
340	{ "--no-dir-enum", kCmdOpt_NoDirEnum, RTGETOPT_REQ_NOTHING },
341	{ "--mk-rm-dir", kCmdOpt_MkRmDir, RTGETOPT_REQ_NOTHING },
342	{ "--no-mk-rm-dir", kCmdOpt_NoMkRmDir, RTGETOPT_REQ_NOTHING },
343	{ "--stat-vfs", kCmdOpt_StatVfs, RTGETOPT_REQ_NOTHING },
344	{ "--no-stat-vfs", kCmdOpt_NoStatVfs, RTGETOPT_REQ_NOTHING },
345	{ "--rm", kCmdOpt_Rm, RTGETOPT_REQ_NOTHING },
346	{ "--no-rm", kCmdOpt_NoRm, RTGETOPT_REQ_NOTHING },
347	{ "--chsize", kCmdOpt_ChSize, RTGETOPT_REQ_NOTHING },
348	{ "--no-chsize", kCmdOpt_NoChSize, RTGETOPT_REQ_NOTHING },
349	{ "--read-tests", kCmdOpt_ReadTests, RTGETOPT_REQ_NOTHING },
350	{ "--no-read-tests", kCmdOpt_NoReadTests, RTGETOPT_REQ_NOTHING },
351	{ "--read-perf", kCmdOpt_ReadPerf, RTGETOPT_REQ_NOTHING },
352	{ "--no-read-perf", kCmdOpt_NoReadPerf, RTGETOPT_REQ_NOTHING },
353	{ "--write-tests", kCmdOpt_WriteTests, RTGETOPT_REQ_NOTHING },
354	{ "--no-write-tests", kCmdOpt_NoWriteTests, RTGETOPT_REQ_NOTHING },
355	{ "--write-perf", kCmdOpt_WritePerf, RTGETOPT_REQ_NOTHING },
356	{ "--no-write-perf", kCmdOpt_NoWritePerf, RTGETOPT_REQ_NOTHING },
357	{ "--seek", kCmdOpt_Seek, RTGETOPT_REQ_NOTHING },
358	{ "--no-seek", kCmdOpt_NoSeek, RTGETOPT_REQ_NOTHING },
359	{ "--fsync", kCmdOpt_FSync, RTGETOPT_REQ_NOTHING },
360	{ "--no-fsync", kCmdOpt_NoFSync, RTGETOPT_REQ_NOTHING },
361	{ "--mmap", kCmdOpt_MMap, RTGETOPT_REQ_NOTHING },
362	{ "--no-mmap", kCmdOpt_NoMMap, RTGETOPT_REQ_NOTHING },
363	{ "--ignore-no-cache", kCmdOpt_IgnoreNoCache, RTGETOPT_REQ_NOTHING },
364	{ "--no-ignore-no-cache", kCmdOpt_NoIgnoreNoCache, RTGETOPT_REQ_NOTHING },
365	{ "--io-file-size", kCmdOpt_IoFileSize, RTGETOPT_REQ_UINT64 },
366	{ "--set-block-size", kCmdOpt_SetBlockSize, RTGETOPT_REQ_UINT32 },
367	{ "--add-block-size", kCmdOpt_AddBlockSize, RTGETOPT_REQ_UINT32 },
368	{ "--copy", kCmdOpt_Copy, RTGETOPT_REQ_NOTHING },
369	{ "--no-copy", kCmdOpt_NoCopy, RTGETOPT_REQ_NOTHING },
370
371	{ "--show-duration", kCmdOpt_ShowDuration, RTGETOPT_REQ_NOTHING },
372	{ "--no-show-duration", kCmdOpt_NoShowDuration, RTGETOPT_REQ_NOTHING },
373	{ "--show-iterations", kCmdOpt_ShowIterations, RTGETOPT_REQ_NOTHING },
374	{ "--no-show-iterations", kCmdOpt_NoShowIterations, RTGETOPT_REQ_NOTHING },
375
376	{ "--quiet", 'q', RTGETOPT_REQ_NOTHING },
377	{ "--verbose", 'v', RTGETOPT_REQ_NOTHING },
378	{ "--version", 'V', RTGETOPT_REQ_NOTHING },
379	{ "--help", 'h', RTGETOPT_REQ_NOTHING } /* for Usage() */
380	};
381
382	/** The test handle. */
383	static RTTEST g_hTest;
384	/** The number of nanoseconds a RTTimeNanoTS call takes.
385	* This is used for adjusting loop count estimates. */
386	static uint64_t g_nsPerNanoTSCall = 1;
387	/** Whether or not to display the duration of each profile run.
388	* This is chiefly for verify the estimate phase. */
389	static bool g_fShowDuration = false;
390	/** Whether or not to display the iteration count for each profile run.
391	* This is chiefly for verify the estimate phase. */
392	static bool g_fShowIterations = false;
393	/** Verbosity level. */
394	static uint32_t g_uVerbosity = 0;
395
396	/** @name Selected subtest
397	* @{ */
398	static bool g_fManyFiles = true;
399	static bool g_fOpen = true;
400	static bool g_fFStat = true;
401	static bool g_fFChMod = true;
402	static bool g_fFUtimes = true;
403	static bool g_fStat = true;
404	static bool g_fChMod = true;
405	static bool g_fUtimes = true;
406	static bool g_fRename = true;
407	static bool g_fDirOpen = true;
408	static bool g_fDirEnum = true;
409	static bool g_fMkRmDir = true;
410	static bool g_fStatVfs = true;
411	static bool g_fRm = true;
412	static bool g_fChSize = true;
413	static bool g_fReadTests = true;
414	static bool g_fReadPerf = true;
415	static bool g_fWriteTests= true;
416	static bool g_fWritePerf = true;
417	static bool g_fSeek = true;
418	static bool g_fFSync = true;
419	static bool g_fMMap = true;
420	static bool g_fCopy = true;
421	/** @} */
422
423	/** The length of each test run. */
424	static uint64_t g_nsTestRun = RT_NS_1SEC_64 * 10;
425
426	/** For the 'manyfiles' subdir. */
427	static uint32_t g_cManyFiles = 10000;
428
429	/** Number of files in the 'manytree' directory tree. */
430	static uint32_t g_cManyTreeFiles = 640 + 16640 /10880*/;
431	/** Number of files per directory in the 'manytree' construct. */
432	static uint32_t g_cManyTreeFilesPerDir = 640;
433	/** Number of subdirs per directory in the 'manytree' construct. */
434	static uint32_t g_cManyTreeSubdirsPerDir = 16;
435	/** The depth of the 'manytree' directory tree. */
436	static uint32_t g_cManyTreeDepth = 1;
437	/** List of directories in the many tree, creation order. */
438	static RTLISTANCHOR g_ManyTreeHead;
439
440	/** Number of configured I/O block sizes. */
441	static uint32_t g_cIoBlocks = 8;
442	/** Configured I/O block sizes. */
443	static uint32_t g_acbIoBlocks[16] = { 1, 512, 4096, 16384, 65536, _1M, _32M, _128M };
444	/** The desired size of the test file we use for I/O. */
445	static uint64_t g_cbIoFile = _512M;
446	/** Whether to be less strict with non-cache file handle. */
447	static bool g_fIgnoreNoCache = false;
448
449	/** The length of g_szDir. */
450	static size_t g_cchDir;
451	/** The length of g_szEmptyDir. */
452	static size_t g_cchEmptyDir;
453	/** The length of g_szDeepDir. */
454	static size_t g_cchDeepDir;
455
456	/** The test directory (absolute). This will always have a trailing slash. */
457	static char g_szDir[RTPATH_MAX];
458	/** The test directory (absolute), 2nd copy for use with InDir2(). */
459	static char g_szDir2[RTPATH_MAX];
460	/** The empty test directory (absolute). This will always have a trailing slash. */
461	static char g_szEmptyDir[RTPATH_MAX];
462	/** The deep test directory (absolute). This will always have a trailing slash. */
463	static char g_szDeepDir[RTPATH_MAX];
464
465
466	/**
467	* Yield the CPU and stuff before starting a test run.
468	*/
469	DECLINLINE(void) fsPerfYield(void)
470	{
471	RTThreadYield();
472	RTThreadYield();
473	}
474
475
476	/**
477	* Profiles the RTTimeNanoTS call, setting g_nsPerNanoTSCall.
478	*/
479	static void fsPerfNanoTS(void)
480	{
481	fsPerfYield();
482
483	/* Make sure we start off on a changing timestamp on platforms will low time resoultion. */
484	uint64_t nsStart = RTTimeNanoTS();
485	uint64_t ns;
486	do
487	ns = RTTimeNanoTS();
488	while (ns == nsStart);
489	nsStart = ns;
490
491	/* Call it for 10 ms. */
492	uint32_t i = 0;
493	do
494	{
495	i++;
496	ns = RTTimeNanoTS();
497	}
498	while (ns - nsStart < RT_NS_10MS);
499
500	g_nsPerNanoTSCall = (ns - nsStart) / i;
501	}
502
503
504	/**
505	* Construct a path relative to the base test directory.
506	*
507	* @returns g_szDir.
508	* @param pszAppend What to append.
509	* @param cchAppend How much to append.
510	*/
511	DECLINLINE(char ) InDir(const char pszAppend, size_t cchAppend)
512	{
513	Assert(g_szDir[g_cchDir - 1] == RTPATH_SLASH);
514	memcpy(&g_szDir[g_cchDir], pszAppend, cchAppend);
515	g_szDir[g_cchDir + cchAppend] = '\0';
516	return &g_szDir[0];
517	}
518
519
520	/**
521	* Construct a path relative to the base test directory, 2nd copy.
522	*
523	* @returns g_szDir2.
524	* @param pszAppend What to append.
525	* @param cchAppend How much to append.
526	*/
527	DECLINLINE(char ) InDir2(const char pszAppend, size_t cchAppend)
528	{
529	Assert(g_szDir[g_cchDir - 1] == RTPATH_SLASH);
530	memcpy(g_szDir2, g_szDir, g_cchDir);
531	memcpy(&g_szDir2[g_cchDir], pszAppend, cchAppend);
532	g_szDir2[g_cchDir + cchAppend] = '\0';
533	return &g_szDir2[0];
534	}
535
536
537	/**
538	* Construct a path relative to the empty directory.
539	*
540	* @returns g_szEmptyDir.
541	* @param pszAppend What to append.
542	* @param cchAppend How much to append.
543	*/
544	DECLINLINE(char ) InEmptyDir(const char pszAppend, size_t cchAppend)
545	{
546	Assert(g_szEmptyDir[g_cchEmptyDir - 1] == RTPATH_SLASH);
547	memcpy(&g_szEmptyDir[g_cchEmptyDir], pszAppend, cchAppend);
548	g_szEmptyDir[g_cchEmptyDir + cchAppend] = '\0';
549	return &g_szEmptyDir[0];
550	}
551
552
553	/**
554	* Construct a path relative to the deep test directory.
555	*
556	* @returns g_szDeepDir.
557	* @param pszAppend What to append.
558	* @param cchAppend How much to append.
559	*/
560	DECLINLINE(char ) InDeepDir(const char pszAppend, size_t cchAppend)
561	{
562	Assert(g_szDeepDir[g_cchDeepDir - 1] == RTPATH_SLASH);
563	memcpy(&g_szDeepDir[g_cchDeepDir], pszAppend, cchAppend);
564	g_szDeepDir[g_cchDeepDir + cchAppend] = '\0';
565	return &g_szDeepDir[0];
566	}
567
568
569	/**
570	* Prepares the test area.
571	* @returns VBox status code.
572	*/
573	static int fsPrepTestArea(void)
574	{
575	/* The empty subdir and associated globals: */
576	static char s_szEmpty[] = "empty";
577	memcpy(g_szEmptyDir, g_szDir, g_cchDir);
578	memcpy(&g_szEmptyDir[g_cchDir], s_szEmpty, sizeof(s_szEmpty));
579	g_cchEmptyDir = g_cchDir + sizeof(s_szEmpty) - 1;
580	RTTESTI_CHECK_RC_RET(RTDirCreate(g_szEmptyDir, 0755, 0), VINF_SUCCESS, rcCheck);
581	g_szEmptyDir[g_cchEmptyDir++] = RTPATH_SLASH;
582	g_szEmptyDir[g_cchEmptyDir] = '\0';
583	RTTestIPrintf(RTTESTLVL_ALWAYS, "Empty dir: %s\n", g_szEmptyDir);
584
585	/* Deep directory: */
586	memcpy(g_szDeepDir, g_szDir, g_cchDir);
587	g_cchDeepDir = g_cchDir;
588	do
589	{
590	static char const s_szSub[] = "d" RTPATH_SLASH_STR;
591	memcpy(&g_szDeepDir[g_cchDeepDir], s_szSub, sizeof(s_szSub));
592	g_cchDeepDir += sizeof(s_szSub) - 1;
593	RTTESTI_CHECK_RC_RET( RTDirCreate(g_szDeepDir, 0755, 0), VINF_SUCCESS, rcCheck);
594	} while (g_cchDeepDir < 176);
595	RTTestIPrintf(RTTESTLVL_ALWAYS, "Deep dir: %s\n", g_szDeepDir);
596
597	/* Create known file in both deep and shallow dirs: */
598	RTFILE hKnownFile;
599	RTTESTI_CHECK_RC_RET(RTFileOpen(&hKnownFile, InDir(RT_STR_TUPLE("known-file")),
600	RTFILE_O_CREATE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE),
601	VINF_SUCCESS, rcCheck);
602	RTTESTI_CHECK_RC_RET(RTFileClose(hKnownFile), VINF_SUCCESS, rcCheck);
603
604	RTTESTI_CHECK_RC_RET(RTFileOpen(&hKnownFile, InDeepDir(RT_STR_TUPLE("known-file")),
605	RTFILE_O_CREATE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE),
606	VINF_SUCCESS, rcCheck);
607	RTTESTI_CHECK_RC_RET(RTFileClose(hKnownFile), VINF_SUCCESS, rcCheck);
608
609	return VINF_SUCCESS;
610	}
611
612
613	/**
614	* Create a name list entry.
615	* @returns Pointer to the entry, NULL if out of memory.
616	* @param pchName The name.
617	* @param cchName The name length.
618	*/
619	PFSPERFNAMEENTRY fsPerfCreateNameEntry(const char *pchName, size_t cchName)
620	{
621	PFSPERFNAMEENTRY pEntry = (PFSPERFNAMEENTRY)RTMemAllocVar(RT_UOFFSETOF_DYN(FSPERFNAMEENTRY, szName[cchName + 1]));
622	if (pEntry)
623	{
624	RTListInit(&pEntry->Entry);
625	pEntry->cchName = (uint16_t)cchName;
626	memcpy(pEntry->szName, pchName, cchName);
627	pEntry->szName[cchName] = '\0';
628	}
629	return pEntry;
630	}
631
632
633	static int fsPerfManyTreeRecursiveDirCreator(size_t cchDir, uint32_t iDepth)
634	{
635	PFSPERFNAMEENTRY pEntry = fsPerfCreateNameEntry(g_szDir, cchDir);
636	RTTESTI_CHECK_RET(pEntry, VERR_NO_MEMORY);
637	RTListAppend(&g_ManyTreeHead, &pEntry->Entry);
638
639	RTTESTI_CHECK_RC_RET(RTDirCreate(g_szDir, 0755, RTDIRCREATE_FLAGS_NOT_CONTENT_INDEXED_DONT_SET \| RTDIRCREATE_FLAGS_NOT_CONTENT_INDEXED_NOT_CRITICAL),
640	VINF_SUCCESS, rcCheck);
641
642	if (iDepth < g_cManyTreeDepth)
643	for (uint32_t i = 0; i < g_cManyTreeSubdirsPerDir; i++)
644	{
645	size_t cchSubDir = RTStrPrintf(&g_szDir[cchDir], sizeof(g_szDir) - cchDir, "d%02u" RTPATH_SLASH_STR, i);
646	RTTESTI_CHECK_RC_RET(fsPerfManyTreeRecursiveDirCreator(cchDir + cchSubDir, iDepth + 1), VINF_SUCCESS, rcCheck);
647	}
648
649	return VINF_SUCCESS;
650	}
651
652
653	void fsPerfManyFiles(void)
654	{
655	RTTestISub("manyfiles");
656
657	/*
658	* Create a sub-directory with like 10000 files in it.
659	*
660	* This does push the directory organization of the underlying file system,
661	* which is something we might not want to profile with shared folders. It
662	* is however useful for directory enumeration.
663	*/
664	RTTESTI_CHECK_RC_RETV(RTDirCreate(InDir(RT_STR_TUPLE("manyfiles")), 0755,
665	RTDIRCREATE_FLAGS_NOT_CONTENT_INDEXED_DONT_SET \| RTDIRCREATE_FLAGS_NOT_CONTENT_INDEXED_NOT_CRITICAL),
666	VINF_SUCCESS);
667
668	size_t offFilename = strlen(g_szDir);
669	g_szDir[offFilename++] = RTPATH_SLASH;
670
671	fsPerfYield();
672	RTFILE hFile;
673	uint64_t const nsStart = RTTimeNanoTS();
674	for (uint32_t i = 0; i < g_cManyFiles; i++)
675	{
676	RTStrFormatU32(&g_szDir[offFilename], sizeof(g_szDir) - offFilename, i, 10, 5, 5, RTSTR_F_ZEROPAD);
677	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFile, g_szDir, RTFILE_O_CREATE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
678	RTTESTI_CHECK_RC(RTFileClose(hFile), VINF_SUCCESS);
679	}
680	uint64_t const cNsElapsed = RTTimeNanoTS() - nsStart;
681	RTTestIValueF(cNsElapsed, RTTESTUNIT_NS, "Creating %u empty files in single directory", g_cManyFiles);
682	RTTestIValueF(cNsElapsed / g_cManyFiles, RTTESTUNIT_NS_PER_OCCURRENCE, "Create empty file (single dir)");
683
684	/*
685	* Create a bunch of directories with exacly 32 files in each, hoping to
686	* avoid any directory organization artifacts.
687	*/
688	/* Create the directories first, building a list of them for simplifying iteration: */
689	RTListInit(&g_ManyTreeHead);
690	InDir(RT_STR_TUPLE("manytree" RTPATH_SLASH_STR));
691	RTTESTI_CHECK_RC_RETV(fsPerfManyTreeRecursiveDirCreator(strlen(g_szDir), 0), VINF_SUCCESS);
692
693	/* Create the zero byte files: */
694	fsPerfYield();
695	uint64_t const nsStart2 = RTTimeNanoTS();
696	uint32_t cFiles = 0;
697	PFSPERFNAMEENTRY pCur;
698	RTListForEach(&g_ManyTreeHead, pCur, FSPERFNAMEENTRY, Entry)
699	{
700	char szPath[RTPATH_MAX];
701	memcpy(szPath, pCur->szName, pCur->cchName);
702	for (uint32_t i = 0; i < g_cManyTreeFilesPerDir; i++)
703	{
704	RTStrFormatU32(&szPath[pCur->cchName], sizeof(szPath) - pCur->cchName, i, 10, 5, 5, RTSTR_F_ZEROPAD);
705	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFile, szPath, RTFILE_O_CREATE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
706	RTTESTI_CHECK_RC(RTFileClose(hFile), VINF_SUCCESS);
707	cFiles++;
708	}
709	}
710	uint64_t const cNsElapsed2 = RTTimeNanoTS() - nsStart2;
711	RTTestIValueF(cNsElapsed2, RTTESTUNIT_NS, "Creating %u empty files in tree", cFiles);
712	RTTestIValueF(cNsElapsed2 / cFiles, RTTESTUNIT_NS_PER_OCCURRENCE, "Create empty file (tree)");
713	RTTESTI_CHECK(g_cManyTreeFiles == cFiles);
714	}
715
716
717	DECL_FORCE_INLINE(int) fsPerfOpenExistingOnceReadonly(const char *pszFile)
718	{
719	RTFILE hFile;
720	RTTESTI_CHECK_RC_RET(RTFileOpen(&hFile, pszFile, RTFILE_O_OPEN \| RTFILE_O_DENY_NONE \| RTFILE_O_READ), VINF_SUCCESS, rcCheck);
721	RTTESTI_CHECK_RC(RTFileClose(hFile), VINF_SUCCESS);
722	return VINF_SUCCESS;
723	}
724
725
726	DECL_FORCE_INLINE(int) fsPerfOpenExistingOnceWriteonly(const char *pszFile)
727	{
728	RTFILE hFile;
729	RTTESTI_CHECK_RC_RET(RTFileOpen(&hFile, pszFile, RTFILE_O_OPEN \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS, rcCheck);
730	RTTESTI_CHECK_RC(RTFileClose(hFile), VINF_SUCCESS);
731	return VINF_SUCCESS;
732	}
733
734
735	/** @note tstRTFileOpenEx-1.cpp has a copy of this code. */
736	static void tstOpenExTest(unsigned uLine, int cbExist, int cbNext, const char *pszFilename, uint64_t fAction,
737	int rcExpect, RTFILEACTION enmActionExpected)
738	{
739	uint64_t const fCreateMode = (0644 << RTFILE_O_CREATE_MODE_SHIFT);
740	RTFILE hFile;
741	int rc;
742
743	/*
744	* File existence and size.
745	*/
746	bool fOkay = false;
747	RTFSOBJINFO ObjInfo;
748	rc = RTPathQueryInfoEx(pszFilename, &ObjInfo, RTFSOBJATTRADD_NOTHING, RTPATH_F_ON_LINK);
749	if (RT_SUCCESS(rc))
750	fOkay = cbExist == (int64_t)ObjInfo.cbObject;
751	else
752	fOkay = rc == VERR_FILE_NOT_FOUND && cbExist < 0;
753	if (!fOkay)
754	{
755	if (cbExist >= 0)
756	{
757	rc = RTFileOpen(&hFile, pszFilename, RTFILE_O_WRITE \| RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| fCreateMode);
758	if (RT_SUCCESS(rc))
759	{
760	while (cbExist > 0)
761	{
762	int cbToWrite = (int)strlen(pszFilename);
763	if (cbToWrite > cbExist)
764	cbToWrite = cbExist;
765	rc = RTFileWrite(hFile, pszFilename, cbToWrite, NULL);
766	if (RT_FAILURE(rc))
767	{
768	RTTestIFailed("%u: RTFileWrite(%s,%#x) -> %Rrc\n", uLine, pszFilename, cbToWrite, rc);
769	break;
770	}
771	cbExist -= cbToWrite;
772	}
773
774	RTTESTI_CHECK_RC(RTFileClose(hFile), VINF_SUCCESS);
775	}
776	else
777	RTTestIFailed("%u: RTFileDelete(%s) -> %Rrc\n", uLine, pszFilename, rc);
778
779	}
780	else
781	{
782	rc = RTFileDelete(pszFilename);
783	if (rc != VINF_SUCCESS && rc != VERR_FILE_NOT_FOUND)
784	RTTestIFailed("%u: RTFileDelete(%s) -> %Rrc\n", uLine, pszFilename, rc);
785	}
786	}
787
788	/*
789	* The actual test.
790	*/
791	RTFILEACTION enmActuallyTaken = RTFILEACTION_END;
792	hFile = NIL_RTFILE;
793	rc = RTFileOpenEx(pszFilename, fAction \| RTFILE_O_READWRITE \| RTFILE_O_DENY_NONE \| fCreateMode, &hFile, &enmActuallyTaken);
794	if ( rc != rcExpect
795	\|\| enmActuallyTaken != enmActionExpected
796	\|\| (RT_SUCCESS(rc) ? hFile == NIL_RTFILE : hFile != NIL_RTFILE))
797	RTTestIFailed("%u: RTFileOpenEx(%s, %#llx) -> %Rrc + %d (hFile=%p), expected %Rrc + %d\n",
798	uLine, pszFilename, fAction, rc, enmActuallyTaken, hFile, rcExpect, enmActionExpected);
799	if (RT_SUCCESS(rc))
800	{
801	if ( enmActionExpected == RTFILEACTION_REPLACED
802	\|\| enmActionExpected == RTFILEACTION_TRUNCATED)
803	{
804	uint8_t abBuf[16];
805	rc = RTFileRead(hFile, abBuf, 1, NULL);
806	if (rc != VERR_EOF)
807	RTTestIFailed("%u: RTFileRead(%s,,1,) -> %Rrc, expected VERR_EOF\n", uLine, pszFilename, rc);
808	}
809
810	while (cbNext > 0)
811	{
812	int cbToWrite = (int)strlen(pszFilename);
813	if (cbToWrite > cbNext)
814	cbToWrite = cbNext;
815	rc = RTFileWrite(hFile, pszFilename, cbToWrite, NULL);
816	if (RT_FAILURE(rc))
817	{
818	RTTestIFailed("%u: RTFileWrite(%s,%#x) -> %Rrc\n", uLine, pszFilename, cbToWrite, rc);
819	break;
820	}
821	cbNext -= cbToWrite;
822	}
823
824	rc = RTFileClose(hFile);
825	if (RT_FAILURE(rc))
826	RTTestIFailed("%u: RTFileClose(%p) -> %Rrc\n", uLine, hFile, rc);
827	}
828	}
829
830
831	void fsPerfOpen(void)
832	{
833	RTTestISub("open");
834
835	/* Opening non-existing files. */
836	RTFILE hFile;
837	RTTESTI_CHECK_RC(RTFileOpen(&hFile, InEmptyDir(RT_STR_TUPLE("no-such-file")),
838	RTFILE_O_OPEN \| RTFILE_O_DENY_NONE \| RTFILE_O_READ), VERR_FILE_NOT_FOUND);
839	RTTESTI_CHECK_RC(RTFileOpen(&hFile, InEmptyDir(RT_STR_TUPLE("no-such-dir" RTPATH_SLASH_STR "no-such-file")),
840	RTFILE_O_OPEN \| RTFILE_O_DENY_NONE \| RTFILE_O_READ), FSPERF_VERR_PATH_NOT_FOUND);
841	RTTESTI_CHECK_RC(RTFileOpen(&hFile, InDir(RT_STR_TUPLE("known-file" RTPATH_SLASH_STR "no-such-file")),
842	RTFILE_O_OPEN \| RTFILE_O_DENY_NONE \| RTFILE_O_READ), VERR_PATH_NOT_FOUND);
843
844	/*
845	* The following is copied from tstRTFileOpenEx-1.cpp:
846	*/
847	InDir(RT_STR_TUPLE("file1"));
848	tstOpenExTest(__LINE__, -1, -1, g_szDir, RTFILE_O_OPEN, VERR_FILE_NOT_FOUND, RTFILEACTION_INVALID);
849	tstOpenExTest(__LINE__, -1, -1, g_szDir, RTFILE_O_OPEN_CREATE, VINF_SUCCESS, RTFILEACTION_CREATED);
850	tstOpenExTest(__LINE__, 0, 0, g_szDir, RTFILE_O_OPEN_CREATE, VINF_SUCCESS, RTFILEACTION_OPENED);
851	tstOpenExTest(__LINE__, 0, 0, g_szDir, RTFILE_O_OPEN, VINF_SUCCESS, RTFILEACTION_OPENED);
852
853	tstOpenExTest(__LINE__, 0, 0, g_szDir, RTFILE_O_OPEN \| RTFILE_O_TRUNCATE, VINF_SUCCESS, RTFILEACTION_TRUNCATED);
854	tstOpenExTest(__LINE__, 0, 10, g_szDir, RTFILE_O_OPEN_CREATE \| RTFILE_O_TRUNCATE, VINF_SUCCESS, RTFILEACTION_TRUNCATED);
855	tstOpenExTest(__LINE__, 10, 10, g_szDir, RTFILE_O_OPEN_CREATE \| RTFILE_O_TRUNCATE, VINF_SUCCESS, RTFILEACTION_TRUNCATED);
856	tstOpenExTest(__LINE__, 10, -1, g_szDir, RTFILE_O_OPEN \| RTFILE_O_TRUNCATE, VINF_SUCCESS, RTFILEACTION_TRUNCATED);
857	tstOpenExTest(__LINE__, -1, -1, g_szDir, RTFILE_O_OPEN \| RTFILE_O_TRUNCATE, VERR_FILE_NOT_FOUND, RTFILEACTION_INVALID);
858	tstOpenExTest(__LINE__, -1, 0, g_szDir, RTFILE_O_OPEN_CREATE \| RTFILE_O_TRUNCATE, VINF_SUCCESS, RTFILEACTION_CREATED);
859
860	tstOpenExTest(__LINE__, 0, -1, g_szDir, RTFILE_O_CREATE_REPLACE, VINF_SUCCESS, RTFILEACTION_REPLACED);
861	tstOpenExTest(__LINE__, -1, 0, g_szDir, RTFILE_O_CREATE_REPLACE, VINF_SUCCESS, RTFILEACTION_CREATED);
862	tstOpenExTest(__LINE__, 0, -1, g_szDir, RTFILE_O_CREATE, VERR_ALREADY_EXISTS, RTFILEACTION_ALREADY_EXISTS);
863	tstOpenExTest(__LINE__, -1, -1, g_szDir, RTFILE_O_CREATE, VINF_SUCCESS, RTFILEACTION_CREATED);
864
865	tstOpenExTest(__LINE__, -1, 10, g_szDir, RTFILE_O_CREATE \| RTFILE_O_TRUNCATE, VINF_SUCCESS, RTFILEACTION_CREATED);
866	tstOpenExTest(__LINE__, 10, 10, g_szDir, RTFILE_O_CREATE \| RTFILE_O_TRUNCATE, VERR_ALREADY_EXISTS, RTFILEACTION_ALREADY_EXISTS);
867	tstOpenExTest(__LINE__, 10, -1, g_szDir, RTFILE_O_CREATE_REPLACE \| RTFILE_O_TRUNCATE, VINF_SUCCESS, RTFILEACTION_REPLACED);
868	tstOpenExTest(__LINE__, -1, -1, g_szDir, RTFILE_O_CREATE_REPLACE \| RTFILE_O_TRUNCATE, VINF_SUCCESS, RTFILEACTION_CREATED);
869
870	RTTESTI_CHECK_RC(RTFileDelete(g_szDir), VINF_SUCCESS);
871
872	/*
873	* Create file1 and then try exclusivly creating it again.
874	* Then profile opening it for reading.
875	*/
876	RTFILE hFile1;
877	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFile1, InDir(RT_STR_TUPLE("file1")),
878	RTFILE_O_CREATE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
879	RTTESTI_CHECK_RC(RTFileOpen(&hFile, g_szDir, RTFILE_O_CREATE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VERR_ALREADY_EXISTS);
880	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
881
882	PROFILE_FN(fsPerfOpenExistingOnceReadonly(g_szDir), g_nsTestRun, "RTFileOpen/Close/Readonly");
883	PROFILE_FN(fsPerfOpenExistingOnceWriteonly(g_szDir), g_nsTestRun, "RTFileOpen/Close/Writeonly");
884
885	/*
886	* Profile opening in the deep directory too.
887	*/
888	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFile1, InDeepDir(RT_STR_TUPLE("file1")),
889	RTFILE_O_CREATE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
890	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
891	PROFILE_FN(fsPerfOpenExistingOnceReadonly(g_szDeepDir), g_nsTestRun, "RTFileOpen/Close/deep/readonly");
892	PROFILE_FN(fsPerfOpenExistingOnceWriteonly(g_szDeepDir), g_nsTestRun, "RTFileOpen/Close/deep/writeonly");
893
894	/* Manytree: */
895	char szPath[RTPATH_MAX];
896	PROFILE_MANYTREE_FN(szPath, fsPerfOpenExistingOnceReadonly(szPath), 1, g_nsTestRun, "RTFileOpen/Close/manytree/readonly");
897	}
898
899
900	void fsPerfFStat(void)
901	{
902	RTTestISub("fstat");
903	RTFILE hFile1;
904	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFile1, InDir(RT_STR_TUPLE("file2")),
905	RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
906	RTFSOBJINFO ObjInfo = {0};
907	PROFILE_FN(RTFileQueryInfo(hFile1, &ObjInfo, RTFSOBJATTRADD_NOTHING), g_nsTestRun, "RTFileQueryInfo/NOTHING");
908	PROFILE_FN(RTFileQueryInfo(hFile1, &ObjInfo, RTFSOBJATTRADD_UNIX), g_nsTestRun, "RTFileQueryInfo/UNIX");
909
910	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
911	}
912
913
914	void fsPerfFChMod(void)
915	{
916	RTTestISub("fchmod");
917	RTFILE hFile1;
918	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFile1, InDir(RT_STR_TUPLE("file4")),
919	RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
920	RTFSOBJINFO ObjInfo = {0};
921	RTTESTI_CHECK_RC(RTFileQueryInfo(hFile1, &ObjInfo, RTFSOBJATTRADD_NOTHING), VINF_SUCCESS);
922	RTFMODE const fEvenMode = (ObjInfo.Attr.fMode & ~RTFS_UNIX_ALL_ACCESS_PERMS) \| RTFS_DOS_READONLY \| 0400;
923	RTFMODE const fOddMode = (ObjInfo.Attr.fMode & ~(RTFS_UNIX_ALL_ACCESS_PERMS \| RTFS_DOS_READONLY)) \| 0640;
924	PROFILE_FN(RTFileSetMode(hFile1, iIteration & 1 ? fOddMode : fEvenMode), g_nsTestRun, "RTFileSetMode");
925
926	RTFileSetMode(hFile1, ObjInfo.Attr.fMode);
927	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
928	}
929
930
931	void fsPerfFUtimes(void)
932	{
933	RTTestISub("futimes");
934	RTFILE hFile1;
935	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFile1, InDir(RT_STR_TUPLE("file5")),
936	RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
937	RTTIMESPEC Time1;
938	RTTimeNow(&Time1);
939	RTTIMESPEC Time2 = Time1;
940	RTTimeSpecSubSeconds(&Time2, 3636);
941
942	RTFSOBJINFO ObjInfo0 = {0};
943	RTTESTI_CHECK_RC(RTFileQueryInfo(hFile1, &ObjInfo0, RTFSOBJATTRADD_NOTHING), VINF_SUCCESS);
944
945	/* Modify modification time: */
946	RTTESTI_CHECK_RC(RTFileSetTimes(hFile1, NULL, &Time2, NULL, NULL), VINF_SUCCESS);
947	RTFSOBJINFO ObjInfo1 = {0};
948	RTTESTI_CHECK_RC(RTFileQueryInfo(hFile1, &ObjInfo1, RTFSOBJATTRADD_NOTHING), VINF_SUCCESS);
949	RTTESTI_CHECK((RTTimeSpecGetSeconds(&ObjInfo1.ModificationTime) >> 2) == (RTTimeSpecGetSeconds(&Time2) >> 2));
950	char sz1[RTTIME_STR_LEN], sz2[RTTIME_STR_LEN]; /* Div by 1000 here for posix impl. using timeval. */
951	RTTESTI_CHECK_MSG(RTTimeSpecGetNano(&ObjInfo1.AccessTime) / 1000 == RTTimeSpecGetNano(&ObjInfo0.AccessTime) / 1000,
952	("%s, expected %s", RTTimeSpecToString(&ObjInfo1.AccessTime, sz1, sizeof(sz1)),
953	RTTimeSpecToString(&ObjInfo0.AccessTime, sz2, sizeof(sz2))));
954
955	/* Modify access time: */
956	RTTESTI_CHECK_RC(RTFileSetTimes(hFile1, &Time1, NULL, NULL, NULL), VINF_SUCCESS);
957	RTFSOBJINFO ObjInfo2 = {0};
958	RTTESTI_CHECK_RC(RTFileQueryInfo(hFile1, &ObjInfo2, RTFSOBJATTRADD_NOTHING), VINF_SUCCESS);
959	RTTESTI_CHECK((RTTimeSpecGetSeconds(&ObjInfo2.AccessTime) >> 2) == (RTTimeSpecGetSeconds(&Time1) >> 2));
960	RTTESTI_CHECK(RTTimeSpecGetNano(&ObjInfo2.ModificationTime) / 1000 == RTTimeSpecGetNano(&ObjInfo1.ModificationTime) / 1000);
961
962	/* Benchmark it: */
963	PROFILE_FN(RTFileSetTimes(hFile1, NULL, iIteration & 1 ? &Time1 : &Time2, NULL, NULL), g_nsTestRun, "RTFileSetTimes");
964
965	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
966	}
967
968
969	void fsPerfStat(void)
970	{
971	RTTestISub("stat");
972	RTFSOBJINFO ObjInfo;
973
974	/* Non-existing files. */
975	RTTESTI_CHECK_RC(RTPathQueryInfoEx(InEmptyDir(RT_STR_TUPLE("no-such-file")),
976	&ObjInfo, RTFSOBJATTRADD_NOTHING, RTPATH_F_ON_LINK), VERR_FILE_NOT_FOUND);
977	RTTESTI_CHECK_RC(RTPathQueryInfoEx(InEmptyDir(RT_STR_TUPLE("no-such-dir" RTPATH_SLASH_STR "no-such-file")),
978	&ObjInfo, RTFSOBJATTRADD_NOTHING, RTPATH_F_ON_LINK), FSPERF_VERR_PATH_NOT_FOUND);
979	RTTESTI_CHECK_RC(RTPathQueryInfoEx(InDir(RT_STR_TUPLE("known-file" RTPATH_SLASH_STR "no-such-file")),
980	&ObjInfo, RTFSOBJATTRADD_NOTHING, RTPATH_F_ON_LINK), VERR_PATH_NOT_FOUND);
981
982	/* Shallow: */
983	RTFILE hFile1;
984	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFile1, InDir(RT_STR_TUPLE("file3")),
985	RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
986	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
987
988	PROFILE_FN(RTPathQueryInfoEx(g_szDir, &ObjInfo, RTFSOBJATTRADD_NOTHING, RTPATH_F_ON_LINK), g_nsTestRun,
989	"RTPathQueryInfoEx/NOTHING");
990	PROFILE_FN(RTPathQueryInfoEx(g_szDir, &ObjInfo, RTFSOBJATTRADD_UNIX, RTPATH_F_ON_LINK), g_nsTestRun,
991	"RTPathQueryInfoEx/UNIX");
992
993
994	/* Deep: */
995	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFile1, InDeepDir(RT_STR_TUPLE("file3")),
996	RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
997	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
998
999	PROFILE_FN(RTPathQueryInfoEx(g_szDeepDir, &ObjInfo, RTFSOBJATTRADD_NOTHING, RTPATH_F_ON_LINK), g_nsTestRun,
1000	"RTPathQueryInfoEx/deep/NOTHING");
1001	PROFILE_FN(RTPathQueryInfoEx(g_szDeepDir, &ObjInfo, RTFSOBJATTRADD_UNIX, RTPATH_F_ON_LINK), g_nsTestRun,
1002	"RTPathQueryInfoEx/deep/UNIX");
1003
1004	/* Manytree: */
1005	char szPath[RTPATH_MAX];
1006	PROFILE_MANYTREE_FN(szPath, RTPathQueryInfoEx(szPath, &ObjInfo, RTFSOBJATTRADD_NOTHING, RTPATH_F_ON_LINK),
1007	1, g_nsTestRun, "RTPathQueryInfoEx/manytree/NOTHING");
1008	PROFILE_MANYTREE_FN(szPath, RTPathQueryInfoEx(szPath, &ObjInfo, RTFSOBJATTRADD_UNIX, RTPATH_F_ON_LINK),
1009	1, g_nsTestRun, "RTPathQueryInfoEx/manytree/UNIX");
1010	}
1011
1012
1013	void fsPerfChmod(void)
1014	{
1015	RTTestISub("chmod");
1016
1017	/* Non-existing files. */
1018	RTTESTI_CHECK_RC(RTPathSetMode(InEmptyDir(RT_STR_TUPLE("no-such-file")), 0665),
1019	VERR_FILE_NOT_FOUND);
1020	RTTESTI_CHECK_RC(RTPathSetMode(InEmptyDir(RT_STR_TUPLE("no-such-dir" RTPATH_SLASH_STR "no-such-file")), 0665),
1021	FSPERF_VERR_PATH_NOT_FOUND);
1022	RTTESTI_CHECK_RC(RTPathSetMode(InDir(RT_STR_TUPLE("known-file" RTPATH_SLASH_STR "no-such-file")), 0665), VERR_PATH_NOT_FOUND);
1023
1024	/* Shallow: */
1025	RTFILE hFile1;
1026	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFile1, InDir(RT_STR_TUPLE("file14")),
1027	RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
1028	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
1029
1030	RTFSOBJINFO ObjInfo;
1031	RTTESTI_CHECK_RC(RTPathQueryInfoEx(g_szDir, &ObjInfo, RTFSOBJATTRADD_NOTHING, RTPATH_F_ON_LINK), VINF_SUCCESS);
1032	RTFMODE const fEvenMode = (ObjInfo.Attr.fMode & ~RTFS_UNIX_ALL_ACCESS_PERMS) \| RTFS_DOS_READONLY \| 0400;
1033	RTFMODE const fOddMode = (ObjInfo.Attr.fMode & ~(RTFS_UNIX_ALL_ACCESS_PERMS \| RTFS_DOS_READONLY)) \| 0640;
1034	PROFILE_FN(RTPathSetMode(g_szDir, iIteration & 1 ? fOddMode : fEvenMode), g_nsTestRun, "RTPathSetMode");
1035	RTPathSetMode(g_szDir, ObjInfo.Attr.fMode);
1036
1037	/* Deep: */
1038	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFile1, InDeepDir(RT_STR_TUPLE("file14")),
1039	RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
1040	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
1041
1042	PROFILE_FN(RTPathSetMode(g_szDeepDir, iIteration & 1 ? fOddMode : fEvenMode), g_nsTestRun, "RTPathSetMode/deep");
1043	RTPathSetMode(g_szDeepDir, ObjInfo.Attr.fMode);
1044
1045	/* Manytree: */
1046	char szPath[RTPATH_MAX];
1047	PROFILE_MANYTREE_FN(szPath, RTPathSetMode(szPath, iIteration & 1 ? fOddMode : fEvenMode), 1, g_nsTestRun,
1048	"RTPathSetMode/manytree");
1049	DO_MANYTREE_FN(szPath, RTPathSetMode(szPath, ObjInfo.Attr.fMode));
1050	}
1051
1052
1053	void fsPerfUtimes(void)
1054	{
1055	RTTestISub("utimes");
1056
1057	RTTIMESPEC Time1;
1058	RTTimeNow(&Time1);
1059	RTTIMESPEC Time2 = Time1;
1060	RTTimeSpecSubSeconds(&Time2, 3636);
1061
1062	/* Non-existing files. */
1063	RTTESTI_CHECK_RC(RTPathSetTimesEx(InEmptyDir(RT_STR_TUPLE("no-such-file")), NULL, &Time1, NULL, NULL, RTPATH_F_ON_LINK),
1064	VERR_FILE_NOT_FOUND);
1065	RTTESTI_CHECK_RC(RTPathSetTimesEx(InEmptyDir(RT_STR_TUPLE("no-such-dir" RTPATH_SLASH_STR "no-such-file")),
1066	NULL, &Time1, NULL, NULL, RTPATH_F_ON_LINK),
1067	FSPERF_VERR_PATH_NOT_FOUND);
1068	RTTESTI_CHECK_RC(RTPathSetTimesEx(InDir(RT_STR_TUPLE("known-file" RTPATH_SLASH_STR "no-such-file")),
1069	NULL, &Time1, NULL, NULL, RTPATH_F_ON_LINK),
1070	VERR_PATH_NOT_FOUND);
1071
1072	/* Shallow: */
1073	RTFILE hFile1;
1074	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFile1, InDir(RT_STR_TUPLE("file15")),
1075	RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
1076	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
1077
1078	RTFSOBJINFO ObjInfo0 = {0};
1079	RTTESTI_CHECK_RC(RTPathQueryInfoEx(g_szDir, &ObjInfo0, RTFSOBJATTRADD_NOTHING, RTPATH_F_ON_LINK), VINF_SUCCESS);
1080
1081	/* Modify modification time: */
1082	RTTESTI_CHECK_RC(RTPathSetTimesEx(g_szDir, NULL, &Time2, NULL, NULL, RTPATH_F_ON_LINK), VINF_SUCCESS);
1083	RTFSOBJINFO ObjInfo1;
1084	RTTESTI_CHECK_RC(RTPathQueryInfoEx(g_szDir, &ObjInfo1, RTFSOBJATTRADD_NOTHING, RTPATH_F_ON_LINK), VINF_SUCCESS);
1085	RTTESTI_CHECK((RTTimeSpecGetSeconds(&ObjInfo1.ModificationTime) >> 2) == (RTTimeSpecGetSeconds(&Time2) >> 2));
1086	RTTESTI_CHECK(RTTimeSpecGetNano(&ObjInfo1.AccessTime) / 1000 == RTTimeSpecGetNano(&ObjInfo0.AccessTime) / 1000 /* posix timeval */);
1087
1088	/* Modify access time: */
1089	RTTESTI_CHECK_RC(RTPathSetTimesEx(g_szDir, &Time1, NULL, NULL, NULL, RTPATH_F_ON_LINK), VINF_SUCCESS);
1090	RTFSOBJINFO ObjInfo2 = {0};
1091	RTTESTI_CHECK_RC(RTPathQueryInfoEx(g_szDir, &ObjInfo2, RTFSOBJATTRADD_NOTHING, RTPATH_F_ON_LINK), VINF_SUCCESS);
1092	RTTESTI_CHECK((RTTimeSpecGetSeconds(&ObjInfo2.AccessTime) >> 2) == (RTTimeSpecGetSeconds(&Time1) >> 2));
1093	RTTESTI_CHECK(RTTimeSpecGetNano(&ObjInfo2.ModificationTime) / 1000 == RTTimeSpecGetNano(&ObjInfo1.ModificationTime) / 1000 /* posix timeval */);
1094
1095	/* Profile shallow: */
1096	PROFILE_FN(RTPathSetTimesEx(g_szDir, iIteration & 1 ? &Time1 : &Time2, iIteration & 1 ? &Time2 : &Time1,
1097	NULL, NULL, RTPATH_F_ON_LINK),
1098	g_nsTestRun, "RTPathSetTimesEx");
1099
1100	/* Deep: */
1101	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFile1, InDeepDir(RT_STR_TUPLE("file15")),
1102	RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
1103	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
1104
1105	PROFILE_FN(RTPathSetTimesEx(g_szDeepDir, iIteration & 1 ? &Time1 : &Time2, iIteration & 1 ? &Time2 : &Time1,
1106	NULL, NULL, RTPATH_F_ON_LINK),
1107	g_nsTestRun, "RTPathSetTimesEx/deep");
1108
1109	/* Manytree: */
1110	char szPath[RTPATH_MAX];
1111	PROFILE_MANYTREE_FN(szPath, RTPathSetTimesEx(szPath, iIteration & 1 ? &Time1 : &Time2, iIteration & 1 ? &Time2 : &Time1,
1112	NULL, NULL, RTPATH_F_ON_LINK),
1113	1, g_nsTestRun, "RTPathSetTimesEx/manytree");
1114	}
1115
1116
1117	DECL_FORCE_INLINE(int) fsPerfRenameMany(const char *pszFile, uint32_t iIteration)
1118	{
1119	char szRenamed[RTPATH_MAX];
1120	strcat(strcpy(szRenamed, pszFile), "-renamed");
1121	if (!(iIteration & 1))
1122	return RTPathRename(pszFile, szRenamed, 0);
1123	return RTPathRename(szRenamed, pszFile, 0);
1124	}
1125
1126
1127	void fsPerfRename(void)
1128	{
1129	RTTestISub("rename");
1130	char szPath[RTPATH_MAX];
1131
1132	/* Non-existing files. */
1133	strcpy(szPath, InEmptyDir(RT_STR_TUPLE("other-no-such-file")));
1134	RTTESTI_CHECK_RC(RTPathRename(InEmptyDir(RT_STR_TUPLE("no-such-file")), szPath, 0), VERR_FILE_NOT_FOUND);
1135	strcpy(szPath, InEmptyDir(RT_STR_TUPLE("no-such-dir" RTPATH_SLASH_STR "other-no-such-file")));
1136	RTTESTI_CHECK_RC(RTPathRename(InEmptyDir(RT_STR_TUPLE("no-such-dir" RTPATH_SLASH_STR "no-such-file")), szPath, 0),
1137	FSPERF_VERR_PATH_NOT_FOUND);
1138	strcpy(szPath, InEmptyDir(RT_STR_TUPLE("other-no-such-file")));
1139	RTTESTI_CHECK_RC(RTPathRename(InDir(RT_STR_TUPLE("known-file" RTPATH_SLASH_STR "no-such-file")), szPath, 0), VERR_PATH_NOT_FOUND);
1140
1141	RTFILE hFile1;
1142	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFile1, InDir(RT_STR_TUPLE("file16")),
1143	RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
1144	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
1145	strcat(strcpy(szPath, g_szDir), "-no-such-dir" RTPATH_SLASH_STR "file16");
1146	RTTESTI_CHECK_RC(RTPathRename(szPath, g_szDir, 0), FSPERF_VERR_PATH_NOT_FOUND);
1147	RTTESTI_CHECK_RC(RTPathRename(g_szDir, szPath, 0), FSPERF_VERR_PATH_NOT_FOUND);
1148
1149	/* Shallow: */
1150	strcat(strcpy(szPath, g_szDir), "-other");
1151	PROFILE_FN(RTPathRename(iIteration & 1 ? szPath : g_szDir, iIteration & 1 ? g_szDir : szPath, 0), g_nsTestRun, "RTPathRename");
1152
1153	/* Deep: */
1154	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFile1, InDeepDir(RT_STR_TUPLE("file15")),
1155	RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
1156	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
1157
1158	strcat(strcpy(szPath, g_szDeepDir), "-other");
1159	PROFILE_FN(RTPathRename(iIteration & 1 ? szPath : g_szDeepDir, iIteration & 1 ? g_szDeepDir : szPath, 0),
1160	g_nsTestRun, "RTPathRename/deep");
1161
1162	/* Manytree: */
1163	PROFILE_MANYTREE_FN(szPath, fsPerfRenameMany(szPath, iIteration), 2, g_nsTestRun, "RTPathRename/manytree");
1164	}
1165
1166
1167	DECL_FORCE_INLINE(int) fsPerfOpenClose(const char *pszDir)
1168	{
1169	RTDIR hDir;
1170	RTTESTI_CHECK_RC_RET(RTDirOpen(&hDir, pszDir), VINF_SUCCESS, rcCheck);
1171	RTTESTI_CHECK_RC(RTDirClose(hDir), VINF_SUCCESS);
1172	return VINF_SUCCESS;
1173	}
1174
1175
1176	void vsPerfDirOpen(void)
1177	{
1178	RTTestISub("dir open");
1179	RTDIR hDir;
1180
1181	/*
1182	* Non-existing files.
1183	*/
1184	RTTESTI_CHECK_RC(RTDirOpen(&hDir, InEmptyDir(RT_STR_TUPLE("no-such-file"))), VERR_FILE_NOT_FOUND);
1185	RTTESTI_CHECK_RC(RTDirOpen(&hDir, InEmptyDir(RT_STR_TUPLE("no-such-dir" RTPATH_SLASH_STR "no-such-file"))), FSPERF_VERR_PATH_NOT_FOUND);
1186	RTTESTI_CHECK_RC(RTDirOpen(&hDir, InDir(RT_STR_TUPLE("known-file" RTPATH_SLASH_STR "no-such-file"))), VERR_PATH_NOT_FOUND);
1187
1188	/*
1189	* Check that open + close works.
1190	*/
1191	g_szEmptyDir[g_cchEmptyDir] = '\0';
1192	RTTESTI_CHECK_RC_RETV(RTDirOpen(&hDir, g_szEmptyDir), VINF_SUCCESS);
1193	RTTESTI_CHECK_RC(RTDirClose(hDir), VINF_SUCCESS);
1194
1195
1196	/*
1197	* Profile empty dir and dir with many files.
1198	*/
1199	g_szEmptyDir[g_cchEmptyDir] = '\0';
1200	PROFILE_FN(fsPerfOpenClose(g_szEmptyDir), g_nsTestRun, "RTDirOpen/Close empty");
1201	if (g_fManyFiles)
1202	{
1203	InDir(RT_STR_TUPLE("manyfiles"));
1204	PROFILE_FN(fsPerfOpenClose(g_szDir), g_nsTestRun, "RTDirOpen/Close manyfiles");
1205	}
1206	}
1207
1208
1209	DECL_FORCE_INLINE(int) fsPerfEnumEmpty(void)
1210	{
1211	RTDIR hDir;
1212	g_szEmptyDir[g_cchEmptyDir] = '\0';
1213	RTTESTI_CHECK_RC_RET(RTDirOpen(&hDir, g_szEmptyDir), VINF_SUCCESS, rcCheck);
1214
1215	RTDIRENTRY Entry;
1216	RTTESTI_CHECK_RC(RTDirRead(hDir, &Entry, NULL), VINF_SUCCESS);
1217	RTTESTI_CHECK_RC(RTDirRead(hDir, &Entry, NULL), VINF_SUCCESS);
1218	RTTESTI_CHECK_RC(RTDirRead(hDir, &Entry, NULL), VERR_NO_MORE_FILES);
1219
1220	RTTESTI_CHECK_RC(RTDirClose(hDir), VINF_SUCCESS);
1221	return VINF_SUCCESS;
1222	}
1223
1224
1225	DECL_FORCE_INLINE(int) fsPerfEnumManyFiles(void)
1226	{
1227	RTDIR hDir;
1228	RTTESTI_CHECK_RC_RET(RTDirOpen(&hDir, InDir(RT_STR_TUPLE("manyfiles"))), VINF_SUCCESS, rcCheck);
1229	uint32_t cLeft = g_cManyFiles + 2;
1230	for (;;)
1231	{
1232	RTDIRENTRY Entry;
1233	if (cLeft > 0)
1234	RTTESTI_CHECK_RC_BREAK(RTDirRead(hDir, &Entry, NULL), VINF_SUCCESS);
1235	else
1236	{
1237	RTTESTI_CHECK_RC(RTDirRead(hDir, &Entry, NULL), VERR_NO_MORE_FILES);
1238	break;
1239	}
1240	cLeft--;
1241	}
1242	RTTESTI_CHECK_RC(RTDirClose(hDir), VINF_SUCCESS);
1243	return VINF_SUCCESS;
1244	}
1245
1246
1247	void vsPerfDirEnum(void)
1248	{
1249	RTTestISub("dir enum");
1250	RTDIR hDir;
1251
1252	/*
1253	* The empty directory.
1254	*/
1255	g_szEmptyDir[g_cchEmptyDir] = '\0';
1256	RTTESTI_CHECK_RC_RETV(RTDirOpen(&hDir, g_szEmptyDir), VINF_SUCCESS);
1257
1258	uint32_t fDots = 0;
1259	RTDIRENTRY Entry;
1260	RTTESTI_CHECK_RC(RTDirRead(hDir, &Entry, NULL), VINF_SUCCESS);
1261	RTTESTI_CHECK(RTDirEntryIsStdDotLink(&Entry));
1262	fDots \|= RT_BIT_32(Entry.cbName - 1);
1263
1264	RTTESTI_CHECK_RC(RTDirRead(hDir, &Entry, NULL), VINF_SUCCESS);
1265	RTTESTI_CHECK(RTDirEntryIsStdDotLink(&Entry));
1266	fDots \|= RT_BIT_32(Entry.cbName - 1);
1267	RTTESTI_CHECK(fDots == 3);
1268
1269	RTTESTI_CHECK_RC(RTDirRead(hDir, &Entry, NULL), VERR_NO_MORE_FILES);
1270
1271	RTTESTI_CHECK_RC(RTDirClose(hDir), VINF_SUCCESS);
1272
1273	/*
1274	* The directory with many files in it.
1275	*/
1276	if (g_fManyFiles)
1277	{
1278	fDots = 0;
1279	uint32_t const cBitmap = RT_ALIGN_32(g_cManyFiles, 64);
1280	void *pvBitmap = alloca(cBitmap / 8);
1281	RT_BZERO(pvBitmap, cBitmap / 8);
1282	for (uint32_t i = g_cManyFiles; i < cBitmap; i++)
1283	ASMBitSet(pvBitmap, i);
1284
1285	uint32_t cFiles = 0;
1286	RTTESTI_CHECK_RC_RETV(RTDirOpen(&hDir, InDir(RT_STR_TUPLE("manyfiles"))), VINF_SUCCESS);
1287	for (;;)
1288	{
1289	int rc = RTDirRead(hDir, &Entry, NULL);
1290	if (rc == VINF_SUCCESS)
1291	{
1292	if (Entry.szName[0] == '.')
1293	{
1294	if (Entry.szName[1] == '.')
1295	{
1296	RTTESTI_CHECK(!(fDots & 2));
1297	fDots \|= 2;
1298	}
1299	else
1300	{
1301	RTTESTI_CHECK(Entry.szName[1] == '\0');
1302	RTTESTI_CHECK(!(fDots & 1));
1303	fDots \|= 1;
1304	}
1305	}
1306	else
1307	{
1308	uint32_t iFile = UINT32_MAX;
1309	RTTESTI_CHECK_RC(RTStrToUInt32Full(Entry.szName, 10, &iFile), VINF_SUCCESS);
1310	if ( iFile < g_cManyFiles
1311	&& !ASMBitTest(pvBitmap, iFile))
1312	{
1313	ASMBitSet(pvBitmap, iFile);
1314	cFiles++;
1315	}
1316	else
1317	RTTestFailed(g_hTest, "line %u: iFile=%u g_cManyFiles=%u\n", __LINE__, iFile, g_cManyFiles);
1318	}
1319	}
1320	else if (rc == VERR_NO_MORE_FILES)
1321	break;
1322	else
1323	{
1324	RTTestFailed(g_hTest, "RTDirRead failed enumerating manyfiles: %Rrc\n", rc);
1325	RTDirClose(hDir);
1326	return;
1327	}
1328	}
1329	RTTESTI_CHECK_RC(RTDirClose(hDir), VINF_SUCCESS);
1330	RTTESTI_CHECK(fDots == 3);
1331	RTTESTI_CHECK(cFiles == g_cManyFiles);
1332	RTTESTI_CHECK(ASMMemIsAllU8(pvBitmap, cBitmap / 8, 0xff));
1333	}
1334
1335	/*
1336	* Profile.
1337	*/
1338	PROFILE_FN(fsPerfEnumEmpty(),g_nsTestRun, "RTDirOpen/Read/Close empty");
1339	if (g_fManyFiles)
1340	PROFILE_FN(fsPerfEnumManyFiles(), g_nsTestRun, "RTDirOpen/Read/Close manyfiles");
1341	}
1342
1343
1344	void fsPerfMkRmDir(void)
1345	{
1346	RTTestISub("mkdir/rmdir");
1347
1348	/* Non-existing directories: */
1349	RTTESTI_CHECK_RC(RTDirRemove(InEmptyDir(RT_STR_TUPLE("no-such-dir"))), VERR_FILE_NOT_FOUND);
1350	RTTESTI_CHECK_RC(RTDirRemove(InEmptyDir(RT_STR_TUPLE("no-such-dir" RTPATH_SLASH_STR "no-such-file"))), FSPERF_VERR_PATH_NOT_FOUND);
1351	RTTESTI_CHECK_RC(RTDirRemove(InDir(RT_STR_TUPLE("known-file" RTPATH_SLASH_STR "no-such-file"))), VERR_PATH_NOT_FOUND);
1352	RTTESTI_CHECK_RC(RTDirCreate(InEmptyDir(RT_STR_TUPLE("no-such-dir" RTPATH_SLASH_STR "no-such-file")), 0755, 0), FSPERF_VERR_PATH_NOT_FOUND);
1353	RTTESTI_CHECK_RC(RTDirCreate(InDir(RT_STR_TUPLE("known-file" RTPATH_SLASH_STR "no-such-file")), 0755, 0), VERR_PATH_NOT_FOUND);
1354
1355	/** @todo check what happens if non-final path component isn't a directory. unix
1356	* should return ENOTDIR and IPRT translates that to VERR_PATH_NOT_FOUND.
1357	* Curious what happens on windows. */
1358
1359	/* Already existing directories and files: */
1360	RTTESTI_CHECK_RC(RTDirCreate(InEmptyDir(RT_STR_TUPLE(".")), 0755, 0), VERR_ALREADY_EXISTS);
1361	RTTESTI_CHECK_RC(RTDirCreate(InEmptyDir(RT_STR_TUPLE("..")), 0755, 0), VERR_ALREADY_EXISTS);
1362
1363	/* Remove directory with subdirectories: */
1364	#if defined(RT_OS_WINDOWS) \|\| defined(RT_OS_OS2)
1365	RTTESTI_CHECK_RC(RTDirRemove(InDir(RT_STR_TUPLE("."))), VERR_DIR_NOT_EMPTY);
1366	#else
1367	RTTESTI_CHECK_RC(RTDirRemove(InDir(RT_STR_TUPLE("."))), VERR_INVALID_PARAMETER); /* EINVAL for '.' */
1368	#endif
1369	#if defined(RT_OS_WINDOWS) \|\| defined(RT_OS_OS2)
1370	int rc = RTDirRemove(InDir(RT_STR_TUPLE("..")));
1371	# ifdef RT_OS_WINDOWS
1372	if (rc != VERR_DIR_NOT_EMPTY /ntfs root/ && rc != VERR_SHARING_VIOLATION /ntfs weird/)
1373	RTTestIFailed("RTDirRemove(%s) -> %Rrc, expected VERR_DIR_NOT_EMPTY or VERR_SHARING_VIOLATION", g_szDir, rc);
1374	# else
1375	if (rc != VERR_DIR_NOT_EMPTY && rc != VERR_RESOURCE_BUSY /IPRT/kLIBC fun/)
1376	RTTestIFailed("RTDirRemove(%s) -> %Rrc, expected VERR_DIR_NOT_EMPTY or VERR_RESOURCE_BUSY", g_szDir, rc);
1377
1378	APIRET orc;
1379	RTTESTI_CHECK_MSG((orc = DosDelete((PCSZ)InEmptyDir(RT_STR_TUPLE(".")))) == ERROR_ACCESS_DENIED,
1380	("DosDelete(%s) -> %u, expected %u\n", g_szEmptyDir, orc, ERROR_ACCESS_DENIED));
1381	RTTESTI_CHECK_MSG((orc = DosDelete((PCSZ)InEmptyDir(RT_STR_TUPLE("..")))) == ERROR_ACCESS_DENIED,
1382	("DosDelete(%s) -> %u, expected %u\n", g_szEmptyDir, orc, ERROR_ACCESS_DENIED));
1383	RTTESTI_CHECK_MSG((orc = DosDelete((PCSZ)InEmptyDir(RT_STR_TUPLE("")))) == ERROR_PATH_NOT_FOUND, /* a little weird (fsrouter) */
1384	("DosDelete(%s) -> %u, expected %u\n", g_szEmptyDir, orc, ERROR_PATH_NOT_FOUND));
1385
1386	# endif
1387	#else
1388	RTTESTI_CHECK_RC(RTDirRemove(InDir(RT_STR_TUPLE(".."))), VERR_DIR_NOT_EMPTY);
1389	#endif
1390	RTTESTI_CHECK_RC(RTDirRemove(InDir(RT_STR_TUPLE(""))), VERR_DIR_NOT_EMPTY);
1391
1392	/* Create a directory and remove it: */
1393	RTTESTI_CHECK_RC(RTDirCreate(InDir(RT_STR_TUPLE("subdir-1")), 0755, 0), VINF_SUCCESS);
1394	RTTESTI_CHECK_RC(RTDirRemove(g_szDir), VINF_SUCCESS);
1395
1396	/* Create a file and try remove it or create a directory with the same name: */
1397	RTFILE hFile1;
1398	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFile1, InDir(RT_STR_TUPLE("file18")),
1399	RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
1400	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
1401	RTTESTI_CHECK_RC(RTDirRemove(g_szDir), VERR_NOT_A_DIRECTORY);
1402	RTTESTI_CHECK_RC(RTDirCreate(g_szDir, 0755, 0), VERR_ALREADY_EXISTS);
1403	RTTESTI_CHECK_RC(RTDirCreate(InDir(RT_STR_TUPLE("file18" RTPATH_SLASH_STR "subdir")), 0755, 0), VERR_PATH_NOT_FOUND);
1404
1405	/*
1406	* Profile alternately creating and removing a bunch of directories.
1407	*/
1408	RTTESTI_CHECK_RC_RETV(RTDirCreate(InDir(RT_STR_TUPLE("subdir-2")), 0755, 0), VINF_SUCCESS);
1409	size_t cchDir = strlen(g_szDir);
1410	g_szDir[cchDir++] = RTPATH_SLASH;
1411	g_szDir[cchDir++] = 's';
1412
1413	uint32_t cCreated = 0;
1414	uint64_t nsCreate = 0;
1415	uint64_t nsRemove = 0;
1416	for (;;)
1417	{
1418	/* Create a bunch: */
1419	uint64_t nsStart = RTTimeNanoTS();
1420	for (uint32_t i = 0; i < 998; i++)
1421	{
1422	RTStrFormatU32(&g_szDir[cchDir], sizeof(g_szDir) - cchDir, i, 10, 3, 3, RTSTR_F_ZEROPAD);
1423	RTTESTI_CHECK_RC_RETV(RTDirCreate(g_szDir, 0755, 0), VINF_SUCCESS);
1424	}
1425	nsCreate += RTTimeNanoTS() - nsStart;
1426	cCreated += 998;
1427
1428	/* Remove the bunch: */
1429	nsStart = RTTimeNanoTS();
1430	for (uint32_t i = 0; i < 998; i++)
1431	{
1432	RTStrFormatU32(&g_szDir[cchDir], sizeof(g_szDir) - cchDir, i, 10, 3, 3, RTSTR_F_ZEROPAD);
1433	RTTESTI_CHECK_RC_RETV(RTDirRemove(g_szDir), VINF_SUCCESS);
1434	}
1435	nsRemove = RTTimeNanoTS() - nsStart;
1436
1437	/* Check if we got time for another round: */
1438	if ( ( nsRemove >= g_nsTestRun
1439	&& nsCreate >= g_nsTestRun)
1440	\|\| nsCreate + nsRemove >= g_nsTestRun * 3)
1441	break;
1442	}
1443	RTTestIValue("RTDirCreate", nsCreate / cCreated, RTTESTUNIT_NS_PER_OCCURRENCE);
1444	RTTestIValue("RTDirRemove", nsRemove / cCreated, RTTESTUNIT_NS_PER_OCCURRENCE);
1445	}
1446
1447
1448	void fsPerfStatVfs(void)
1449	{
1450	RTTestISub("statvfs");
1451
1452	g_szEmptyDir[g_cchEmptyDir] = '\0';
1453	RTFOFF cbTotal;
1454	RTFOFF cbFree;
1455	uint32_t cbBlock;
1456	uint32_t cbSector;
1457	RTTESTI_CHECK_RC(RTFsQuerySizes(g_szEmptyDir, &cbTotal, &cbFree, &cbBlock, &cbSector), VINF_SUCCESS);
1458
1459	uint32_t uSerial;
1460	RTTESTI_CHECK_RC(RTFsQuerySerial(g_szEmptyDir, &uSerial), VINF_SUCCESS);
1461
1462	RTFSPROPERTIES Props;
1463	RTTESTI_CHECK_RC(RTFsQueryProperties(g_szEmptyDir, &Props), VINF_SUCCESS);
1464
1465	RTFSTYPE enmType;
1466	RTTESTI_CHECK_RC(RTFsQueryType(g_szEmptyDir, &enmType), VINF_SUCCESS);
1467
1468	g_szDeepDir[g_cchDeepDir] = '\0';
1469	PROFILE_FN(RTFsQuerySizes(g_szEmptyDir, &cbTotal, &cbFree, &cbBlock, &cbSector), g_nsTestRun, "RTFsQuerySize/empty");
1470	PROFILE_FN(RTFsQuerySizes(g_szDeepDir, &cbTotal, &cbFree, &cbBlock, &cbSector), g_nsTestRun, "RTFsQuerySize/deep");
1471	}
1472
1473
1474	void fsPerfRm(void)
1475	{
1476	RTTestISub("rm");
1477
1478	/* Non-existing files. */
1479	RTTESTI_CHECK_RC(RTFileDelete(InEmptyDir(RT_STR_TUPLE("no-such-file"))), VERR_FILE_NOT_FOUND);
1480	RTTESTI_CHECK_RC(RTFileDelete(InEmptyDir(RT_STR_TUPLE("no-such-dir" RTPATH_SLASH_STR "no-such-file"))), FSPERF_VERR_PATH_NOT_FOUND);
1481	RTTESTI_CHECK_RC(RTFileDelete(InDir(RT_STR_TUPLE("known-file" RTPATH_SLASH_STR "no-such-file"))), VERR_PATH_NOT_FOUND);
1482
1483	/* Directories: */
1484	#if defined(RT_OS_WINDOWS)
1485	RTTESTI_CHECK_RC(RTFileDelete(InEmptyDir(RT_STR_TUPLE("."))), VERR_ACCESS_DENIED);
1486	RTTESTI_CHECK_RC(RTFileDelete(InEmptyDir(RT_STR_TUPLE(".."))), VERR_ACCESS_DENIED);
1487	RTTESTI_CHECK_RC(RTFileDelete(InEmptyDir(RT_STR_TUPLE(""))), VERR_ACCESS_DENIED);
1488	#elif defined(RT_OS_DARWIN) /* unlink() on xnu 16.7.0 is behaviour totally werid: */
1489	RTTESTI_CHECK_RC(RTFileDelete(InEmptyDir(RT_STR_TUPLE("."))), VERR_INVALID_PARAMETER);
1490	RTTESTI_CHECK_RC(RTFileDelete(InEmptyDir(RT_STR_TUPLE(".."))), VINF_SUCCESS /WTF?!?/);
1491	RTTESTI_CHECK_RC(RTFileDelete(InEmptyDir(RT_STR_TUPLE(""))), VERR_ACCESS_DENIED);
1492	#elif defined(RT_OS_OS2) /* OS/2 has a busted unlink, it think it should remove directories too. */
1493	RTTESTI_CHECK_RC(RTFileDelete(InDir(RT_STR_TUPLE("."))), VERR_DIR_NOT_EMPTY);
1494	int rc = RTFileDelete(InDir(RT_STR_TUPLE("..")));
1495	if (rc != VERR_DIR_NOT_EMPTY && rc != VERR_FILE_NOT_FOUND && rc != VERR_RESOURCE_BUSY)
1496	RTTestIFailed("RTFileDelete(%s) -> %Rrc, expected VERR_DIR_NOT_EMPTY or VERR_FILE_NOT_FOUND or VERR_RESOURCE_BUSY", g_szDir, rc);
1497	RTTESTI_CHECK_RC(RTFileDelete(InDir(RT_STR_TUPLE(""))), VERR_DIR_NOT_EMPTY);
1498	APIRET orc;
1499	RTTESTI_CHECK_MSG((orc = DosDelete((PCSZ)InEmptyDir(RT_STR_TUPLE(".")))) == ERROR_ACCESS_DENIED,
1500	("DosDelete(%s) -> %u, expected %u\n", g_szEmptyDir, orc, ERROR_ACCESS_DENIED));
1501	RTTESTI_CHECK_MSG((orc = DosDelete((PCSZ)InEmptyDir(RT_STR_TUPLE("..")))) == ERROR_ACCESS_DENIED,
1502	("DosDelete(%s) -> %u, expected %u\n", g_szEmptyDir, orc, ERROR_ACCESS_DENIED));
1503	RTTESTI_CHECK_MSG((orc = DosDelete((PCSZ)InEmptyDir(RT_STR_TUPLE("")))) == ERROR_PATH_NOT_FOUND,
1504	("DosDelete(%s) -> %u, expected %u\n", g_szEmptyDir, orc, ERROR_PATH_NOT_FOUND)); /* hpfs+jfs; weird. */
1505
1506	#else
1507	RTTESTI_CHECK_RC(RTFileDelete(InEmptyDir(RT_STR_TUPLE("."))), VERR_IS_A_DIRECTORY);
1508	RTTESTI_CHECK_RC(RTFileDelete(InEmptyDir(RT_STR_TUPLE(".."))), VERR_IS_A_DIRECTORY);
1509	RTTESTI_CHECK_RC(RTFileDelete(InEmptyDir(RT_STR_TUPLE(""))), VERR_IS_A_DIRECTORY);
1510	#endif
1511
1512	/* Shallow: */
1513	RTFILE hFile1;
1514	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFile1, InDir(RT_STR_TUPLE("file19")),
1515	RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
1516	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
1517	RTTESTI_CHECK_RC(RTFileDelete(g_szDir), VINF_SUCCESS);
1518	RTTESTI_CHECK_RC(RTFileDelete(g_szDir), VERR_FILE_NOT_FOUND);
1519
1520	if (g_fManyFiles)
1521	{
1522	/*
1523	* Profile the deletion of the manyfiles content.
1524	*/
1525	{
1526	InDir(RT_STR_TUPLE("manyfiles" RTPATH_SLASH_STR));
1527	size_t const offFilename = strlen(g_szDir);
1528	fsPerfYield();
1529	uint64_t const nsStart = RTTimeNanoTS();
1530	for (uint32_t i = 0; i < g_cManyFiles; i++)
1531	{
1532	RTStrFormatU32(&g_szDir[offFilename], sizeof(g_szDir) - offFilename, i, 10, 5, 5, RTSTR_F_ZEROPAD);
1533	RTTESTI_CHECK_RC_RETV(RTFileDelete(g_szDir), VINF_SUCCESS);
1534	}
1535	uint64_t const cNsElapsed = RTTimeNanoTS() - nsStart;
1536	RTTestIValueF(cNsElapsed, RTTESTUNIT_NS, "Deleted %u empty files from a single directory", g_cManyFiles);
1537	RTTestIValueF(cNsElapsed / g_cManyFiles, RTTESTUNIT_NS_PER_OCCURRENCE, "Delete file (single dir)");
1538	}
1539
1540	/*
1541	* Ditto for the manytree.
1542	*/
1543	{
1544	char szPath[RTPATH_MAX];
1545	uint64_t const nsStart = RTTimeNanoTS();
1546	DO_MANYTREE_FN(szPath, RTTESTI_CHECK_RC_RETV(RTFileDelete(szPath), VINF_SUCCESS));
1547	uint64_t const cNsElapsed = RTTimeNanoTS() - nsStart;
1548	RTTestIValueF(cNsElapsed, RTTESTUNIT_NS, "Deleted %u empty files in tree", g_cManyTreeFiles);
1549	RTTestIValueF(cNsElapsed / g_cManyTreeFiles, RTTESTUNIT_NS_PER_OCCURRENCE, "Delete file (tree)");
1550	}
1551	}
1552	}
1553
1554
1555	void fsPerfChSize(void)
1556	{
1557	RTTestISub("chsize");
1558
1559	/*
1560	* We need some free space to perform this test.
1561	*/
1562	g_szDir[g_cchDir] = '\0';
1563	RTFOFF cbFree = 0;
1564	RTTESTI_CHECK_RC_RETV(RTFsQuerySizes(g_szDir, NULL, &cbFree, NULL, NULL), VINF_SUCCESS);
1565	if (cbFree < _1M)
1566	{
1567	RTTestSkipped(g_hTest, "Insufficent free space: %'RU64 bytes, requires >= 1MB", cbFree);
1568	return;
1569	}
1570
1571	/*
1572	* Create a file and play around with it's size.
1573	* We let the current file position follow the end position as we make changes.
1574	*/
1575	RTFILE hFile1;
1576	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFile1, InDir(RT_STR_TUPLE("file20")),
1577	RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_READWRITE), VINF_SUCCESS);
1578	uint64_t cbFile = UINT64_MAX;
1579	RTTESTI_CHECK_RC(RTFileGetSize(hFile1, &cbFile), VINF_SUCCESS);
1580	RTTESTI_CHECK(cbFile == 0);
1581
1582	uint8_t abBuf[4096];
1583	static uint64_t const s_acbChanges[] =
1584	{
1585	1023, 1024, 1024, 1025, 8192, 11111, _1M, _8M, _8M,
1586	_4M, _2M + 1, _1M - 1, 65537, 65536, 32768, 8000, 7999, 7998, 1024, 1, 0
1587	};
1588	uint64_t cbOld = 0;
1589	for (unsigned i = 0; i < RT_ELEMENTS(s_acbChanges); i++)
1590	{
1591	uint64_t cbNew = s_acbChanges[i];
1592	if (cbNew + _64K >= (uint64_t)cbFree)
1593	continue;
1594
1595	RTTESTI_CHECK_RC(RTFileSetSize(hFile1, cbNew), VINF_SUCCESS);
1596	RTTESTI_CHECK_RC(RTFileGetSize(hFile1, &cbFile), VINF_SUCCESS);
1597	RTTESTI_CHECK_MSG(cbFile == cbNew, ("cbFile=%#RX64 cbNew=%#RX64\n", cbFile, cbNew));
1598
1599	if (cbNew > cbOld)
1600	{
1601	/* Check that the extension is all zeroed: */
1602	uint64_t cbLeft = cbNew - cbOld;
1603	while (cbLeft > 0)
1604	{
1605	memset(abBuf, 0xff, sizeof(abBuf));
1606	size_t cbToRead = sizeof(abBuf);
1607	if (cbToRead > cbLeft)
1608	cbToRead = (size_t)cbLeft;
1609	RTTESTI_CHECK_RC(RTFileRead(hFile1, abBuf, cbToRead, NULL), VINF_SUCCESS);
1610	RTTESTI_CHECK(ASMMemIsZero(abBuf, cbToRead));
1611	cbLeft -= cbToRead;
1612	}
1613	}
1614	else
1615	{
1616	/* Check that reading fails with EOF because current position is now beyond the end: */
1617	RTTESTI_CHECK_RC(RTFileRead(hFile1, abBuf, 1, NULL), VERR_EOF);
1618
1619	/* Keep current position at the end of the file: */
1620	RTTESTI_CHECK_RC(RTFileSeek(hFile1, cbNew, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS);
1621	}
1622	cbOld = cbNew;
1623	}
1624
1625	/*
1626	* Profile just the file setting operation itself, keeping the changes within
1627	* an allocation unit to avoid needing to adjust the actual (host) FS allocation.
1628	* ASSUMES allocation unit >= 512 and power of two.
1629	*/
1630	RTTESTI_CHECK_RC(RTFileSetSize(hFile1, _64K), VINF_SUCCESS);
1631	PROFILE_FN(RTFileSetSize(hFile1, _64K - (iIteration & 255) - 128), g_nsTestRun, "RTFileSetSize/noalloc");
1632
1633	RTTESTI_CHECK_RC(RTFileSetSize(hFile1, 0), VINF_SUCCESS);
1634	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
1635	RTTESTI_CHECK_RC(RTFileDelete(g_szDir), VINF_SUCCESS);
1636	}
1637
1638
1639	int fsPerfIoPrepFile(RTFILE hFile1, uint64_t cbFile, uint8_t **ppbFree)
1640	{
1641	/*
1642	* Seek to the end - 4K and write the last 4K.
1643	* This should have the effect of filling the whole file with zeros.
1644	*/
1645	RTTESTI_CHECK_RC_RET(RTFileSeek(hFile1, cbFile - _4K, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS, rcCheck);
1646	RTTESTI_CHECK_RC_RET(RTFileWrite(hFile1, g_abRTZero4K, _4K, NULL), VINF_SUCCESS, rcCheck);
1647
1648	/*
1649	* Check that the space we searched across actually is zero filled.
1650	*/
1651	RTTESTI_CHECK_RC_RET(RTFileSeek(hFile1, 0, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS, rcCheck);
1652	size_t cbBuf = _1M;
1653	uint8_t pbBuf = ppbFree = (uint8_t *)RTMemAlloc(cbBuf);
1654	RTTESTI_CHECK_RET(pbBuf != NULL, VERR_NO_MEMORY);
1655	uint64_t cbLeft = cbFile;
1656	while (cbLeft > 0)
1657	{
1658	size_t cbToRead = cbBuf;
1659	if (cbToRead > cbLeft)
1660	cbToRead = (size_t)cbLeft;
1661	pbBuf[cbToRead] = 0xff;
1662
1663	RTTESTI_CHECK_RC_RET(RTFileRead(hFile1, pbBuf, cbToRead, NULL), VINF_SUCCESS, rcCheck);
1664	RTTESTI_CHECK_RET(ASMMemIsZero(pbBuf, cbToRead), VERR_MISMATCH);
1665
1666	cbLeft -= cbToRead;
1667	}
1668
1669	/*
1670	* Fill the file with 0xf6 and insert offset markers with 1KB intervals.
1671	*/
1672	RTTESTI_CHECK_RC_RET(RTFileSeek(hFile1, 0, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS, rcCheck);
1673	memset(pbBuf, 0xf6, cbBuf);
1674	cbLeft = cbFile;
1675	uint64_t off = 0;
1676	while (cbLeft > 0)
1677	{
1678	Assert(!(off & (_1K - 1)));
1679	Assert(!(cbBuf & (_1K - 1)));
1680	for (size_t offBuf = 0; offBuf < cbBuf; offBuf += _1K, off += _1K)
1681	(uint64_t )&pbBuf[offBuf] = off;
1682
1683	size_t cbToWrite = cbBuf;
1684	if (cbToWrite > cbLeft)
1685	cbToWrite = (size_t)cbLeft;
1686
1687	RTTESTI_CHECK_RC_RET(RTFileWrite(hFile1, pbBuf, cbToWrite, NULL), VINF_SUCCESS, rcCheck);
1688
1689	cbLeft -= cbToWrite;
1690	}
1691
1692	return VINF_SUCCESS;
1693	}
1694
1695
1696	/**
1697	* Checks the content read from the file fsPerfIoPrepFile() prepared.
1698	*/
1699	bool fsPerfCheckReadBuf(unsigned uLineNo, uint64_t off, uint8_t const *pbBuf, size_t cbBuf, uint8_t bFiller = 0xf6)
1700	{
1701	uint32_t cMismatches = 0;
1702	size_t offBuf = 0;
1703	uint32_t offBlock = (uint32_t)(off & (_1K - 1));
1704	while (offBuf < cbBuf)
1705	{
1706	/*
1707	* Check the offset marker:
1708	*/
1709	if (offBlock < sizeof(uint64_t))
1710	{
1711	RTUINT64U uMarker;
1712	uMarker.u = off + offBuf - offBlock;
1713	unsigned offMarker = offBlock & (sizeof(uint64_t) - 1);
1714	while (offMarker < sizeof(uint64_t) && offBuf < cbBuf)
1715	{
1716	if (uMarker.au8[offMarker] != pbBuf[offBuf])
1717	{
1718	RTTestIFailed("%u: Mismatch at buffer/file offset %#zx/%#RX64: %#x, expected %#x",
1719	uLineNo, offBuf, off + offBuf, pbBuf[offBuf], uMarker.au8[offMarker]);
1720	if (cMismatches++ > 32)
1721	return false;
1722	}
1723	offMarker++;
1724	offBuf++;
1725	}
1726	offBlock = sizeof(uint64_t);
1727	}
1728
1729	/*
1730	* Check the filling:
1731	*/
1732	size_t cbFilling = RT_MIN(_1K - offBlock, cbBuf - offBuf);
1733	if ( cbFilling == 0
1734	\|\| ASMMemIsAllU8(&pbBuf[offBuf], cbFilling, bFiller))
1735	offBuf += cbFilling;
1736	else
1737	{
1738	/* Some mismatch, locate it/them: */
1739	while (cbFilling > 0 && offBuf < cbBuf)
1740	{
1741	if (pbBuf[offBuf] != bFiller)
1742	{
1743	RTTestIFailed("%u: Mismatch at buffer/file offset %#zx/%#RX64: %#x, expected %#04x",
1744	uLineNo, offBuf, off + offBuf, pbBuf[offBuf], bFiller);
1745	if (cMismatches++ > 32)
1746	return false;
1747	}
1748	offBuf++;
1749	cbFilling--;
1750	}
1751	}
1752	offBlock = 0;
1753	}
1754	return cMismatches == 0;
1755	}
1756
1757
1758	/**
1759	* Sets up write buffer with offset markers and fillers.
1760	*/
1761	void fsPerfFillWriteBuf(uint64_t off, uint8_t *pbBuf, size_t cbBuf, uint8_t bFiller = 0xf6)
1762	{
1763	uint32_t offBlock = (uint32_t)(off & (_1K - 1));
1764	while (cbBuf > 0)
1765	{
1766	/* The marker. */
1767	if (offBlock < sizeof(uint64_t))
1768	{
1769	RTUINT64U uMarker;
1770	uMarker.u = off + offBlock;
1771	if (cbBuf > sizeof(uMarker) - offBlock)
1772	{
1773	memcpy(pbBuf, &uMarker.au8[offBlock], sizeof(uMarker) - offBlock);
1774	pbBuf += sizeof(uMarker) - offBlock;
1775	cbBuf -= sizeof(uMarker) - offBlock;
1776	off += sizeof(uMarker) - offBlock;
1777	}
1778	else
1779	{
1780	memcpy(pbBuf, &uMarker.au8[offBlock], cbBuf);
1781	return;
1782	}
1783	offBlock = sizeof(uint64_t);
1784	}
1785
1786	/* Do the filling. */
1787	size_t cbFilling = RT_MIN(_1K - offBlock, cbBuf);
1788	memset(pbBuf, bFiller, cbFilling);
1789	pbBuf += cbFilling;
1790	cbBuf -= cbFilling;
1791	off += cbFilling;
1792
1793	offBlock = 0;
1794	}
1795	}
1796
1797
1798
1799	void fsPerfIoSeek(RTFILE hFile1, uint64_t cbFile)
1800	{
1801	/*
1802	* Do a bunch of search tests, most which are random.
1803	*/
1804	struct
1805	{
1806	int rc;
1807	uint32_t uMethod;
1808	int64_t offSeek;
1809	uint64_t offActual;
1810
1811	} aSeeks[9 + 64] =
1812	{
1813	{ VINF_SUCCESS, RTFILE_SEEK_BEGIN, 0, 0 },
1814	{ VINF_SUCCESS, RTFILE_SEEK_CURRENT, 0, 0 },
1815	{ VINF_SUCCESS, RTFILE_SEEK_END, 0, cbFile },
1816	{ VINF_SUCCESS, RTFILE_SEEK_CURRENT, -4096, cbFile - 4096 },
1817	{ VINF_SUCCESS, RTFILE_SEEK_CURRENT, 4096 - (int64_t)cbFile, 0 },
1818	{ VINF_SUCCESS, RTFILE_SEEK_END, -(int64_t)cbFile/2, cbFile / 2 + (cbFile & 1) },
1819	{ VINF_SUCCESS, RTFILE_SEEK_CURRENT, -(int64_t)cbFile/2, 0 },
1820	#if defined(RT_OS_WINDOWS)
1821	{ VERR_NEGATIVE_SEEK, RTFILE_SEEK_CURRENT, -1, 0 },
1822	#else
1823	{ VERR_INVALID_PARAMETER, RTFILE_SEEK_CURRENT, -1, 0 },
1824	#endif
1825	{ VINF_SUCCESS, RTFILE_SEEK_CURRENT, 0, 0 },
1826	};
1827
1828	uint64_t offActual = 0;
1829	for (unsigned i = 9; i < RT_ELEMENTS(aSeeks); i++)
1830	{
1831	switch (RTRandU32Ex(RTFILE_SEEK_BEGIN, RTFILE_SEEK_END))
1832	{
1833	default: AssertFailedBreak();
1834	case RTFILE_SEEK_BEGIN:
1835	aSeeks[i].uMethod = RTFILE_SEEK_BEGIN;
1836	aSeeks[i].rc = VINF_SUCCESS;
1837	aSeeks[i].offSeek = RTRandU64Ex(0, cbFile + cbFile / 8);
1838	aSeeks[i].offActual = offActual = aSeeks[i].offSeek;
1839	break;
1840
1841	case RTFILE_SEEK_CURRENT:
1842	aSeeks[i].uMethod = RTFILE_SEEK_CURRENT;
1843	aSeeks[i].rc = VINF_SUCCESS;
1844	aSeeks[i].offSeek = (int64_t)RTRandU64Ex(0, cbFile + cbFile / 8) - (int64_t)offActual;
1845	aSeeks[i].offActual = offActual += aSeeks[i].offSeek;
1846	break;
1847
1848	case RTFILE_SEEK_END:
1849	aSeeks[i].uMethod = RTFILE_SEEK_END;
1850	aSeeks[i].rc = VINF_SUCCESS;
1851	aSeeks[i].offSeek = -(int64_t)RTRandU64Ex(0, cbFile);
1852	aSeeks[i].offActual = offActual = cbFile + aSeeks[i].offSeek;
1853	break;
1854	}
1855	}
1856
1857	for (unsigned iDoReadCheck = 0; iDoReadCheck < 2; iDoReadCheck++)
1858	{
1859	for (uint32_t i = 0; i < RT_ELEMENTS(aSeeks); i++)
1860	{
1861	offActual = UINT64_MAX;
1862	int rc = RTFileSeek(hFile1, aSeeks[i].offSeek, aSeeks[i].uMethod, &offActual);
1863	if (rc != aSeeks[i].rc)
1864	RTTestIFailed("Seek #%u: Expected %Rrc, got %Rrc", i, aSeeks[i].rc, rc);
1865	if (RT_SUCCESS(rc) && offActual != aSeeks[i].offActual)
1866	RTTestIFailed("Seek #%u: offActual %#RX64, expected %#RX64", i, offActual, aSeeks[i].offActual);
1867	if (RT_SUCCESS(rc))
1868	{
1869	uint64_t offTell = RTFileTell(hFile1);
1870	if (offTell != offActual)
1871	RTTestIFailed("Seek #%u: offActual %#RX64, RTFileTell %#RX64", i, offActual, offTell);
1872	}
1873
1874	if (RT_SUCCESS(rc) && offActual + _2K <= cbFile && iDoReadCheck)
1875	{
1876	uint8_t abBuf[_2K];
1877	RTTESTI_CHECK_RC(rc = RTFileRead(hFile1, abBuf, sizeof(abBuf), NULL), VINF_SUCCESS);
1878	if (RT_SUCCESS(rc))
1879	{
1880	size_t offMarker = (size_t)(RT_ALIGN_64(offActual, _1K) - offActual);
1881	uint64_t uMarker = (uint64_t )&abBuf[offMarker]; /** @todo potentially unaligned access */
1882	if (uMarker != offActual + offMarker)
1883	RTTestIFailed("Seek #%u: Invalid marker value (@ %#RX64): %#RX64, expected %#RX64",
1884	i, offActual, uMarker, offActual + offMarker);
1885
1886	RTTESTI_CHECK_RC(RTFileSeek(hFile1, -(int64_t)sizeof(abBuf), RTFILE_SEEK_CURRENT, NULL), VINF_SUCCESS);
1887	}
1888	}
1889	}
1890	}
1891
1892
1893	/*
1894	* Profile seeking relative to the beginning of the file and relative
1895	* to the end. The latter might be more expensive in a SF context.
1896	*/
1897	PROFILE_FN(RTFileSeek(hFile1, iIteration < cbFile ? iIteration : iIteration % cbFile, RTFILE_SEEK_BEGIN, NULL),
1898	g_nsTestRun, "RTFileSeek/BEGIN");
1899	PROFILE_FN(RTFileSeek(hFile1, iIteration < cbFile ? -(int64_t)iIteration : -(int64_t)(iIteration % cbFile), RTFILE_SEEK_END, NULL),
1900	g_nsTestRun, "RTFileSeek/END");
1901
1902	}
1903
1904
1905	/** For fsPerfIoRead and fsPerfIoWrite. */
1906	#define PROFILE_IO_FN(a_szOperation, a_fnCall) \
1907	do \
1908	{ \
1909	RTTESTI_CHECK_RC_RETV(RTFileSeek(hFile1, 0, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS); \
1910	uint64_t offActual = 0; \
1911	uint32_t cSeeks = 0; \
1912	\
1913	/* Estimate how many iterations we need to fill up the given timeslot: */ \
1914	fsPerfYield(); \
1915	uint64_t nsStart = RTTimeNanoTS(); \
1916	uint64_t ns; \
1917	do \
1918	ns = RTTimeNanoTS(); \
1919	while (ns == nsStart); \
1920	nsStart = ns; \
1921	\
1922	uint64_t iIteration = 0; \
1923	do \
1924	{ \
1925	RTTESTI_CHECK_RC(a_fnCall, VINF_SUCCESS); \
1926	iIteration++; \
1927	ns = RTTimeNanoTS() - nsStart; \
1928	} while (ns < RT_NS_10MS); \
1929	ns /= iIteration; \
1930	if (ns > g_nsPerNanoTSCall + 32) \
1931	ns -= g_nsPerNanoTSCall; \
1932	uint64_t cIterations = g_nsTestRun / ns; \
1933	if (cIterations < 2) \
1934	cIterations = 2; \
1935	else if (cIterations & 1) \
1936	cIterations++; \
1937	\
1938	/* Do the actual profiling: */ \
1939	cSeeks = 0; \
1940	iIteration = 0; \
1941	fsPerfYield(); \
1942	nsStart = RTTimeNanoTS(); \
1943	for (uint32_t iAdjust = 0; iAdjust < 4; iAdjust++) \
1944	{ \
1945	for (; iIteration < cIterations; iIteration++)\
1946	RTTESTI_CHECK_RC(a_fnCall, VINF_SUCCESS); \
1947	ns = RTTimeNanoTS() - nsStart;\
1948	if (ns >= g_nsTestRun - (g_nsTestRun / 10)) \
1949	break; \
1950	cIterations += cIterations / 4; \
1951	if (cIterations & 1) \
1952	cIterations++; \
1953	nsStart += g_nsPerNanoTSCall; \
1954	} \
1955	RTTestIValueF(ns / iIteration, \
1956	RTTESTUNIT_NS_PER_OCCURRENCE, a_szOperation "/seq/%RU32 latency", cbBlock); \
1957	RTTestIValueF((uint64_t)((uint64_t)iIteration * cbBlock / ((double)ns / RT_NS_1SEC)), \
1958	RTTESTUNIT_BYTES_PER_SEC, a_szOperation "/seq/%RU32 throughput", cbBlock); \
1959	RTTestIValueF(iIteration, \
1960	RTTESTUNIT_CALLS, a_szOperation "/seq/%RU32 calls", cbBlock); \
1961	RTTestIValueF((uint64_t)iIteration * cbBlock, \
1962	RTTESTUNIT_BYTES, a_szOperation "/seq/%RU32 bytes", cbBlock); \
1963	RTTestIValueF(cSeeks, \
1964	RTTESTUNIT_OCCURRENCES, a_szOperation "/seq/%RU32 seeks", cbBlock); \
1965	if (g_fShowDuration) \
1966	RTTestIValueF(ns, RTTESTUNIT_NS, a_szOperation "/seq/%RU32 duration", cbBlock); \
1967	} while (0)
1968
1969
1970	/**
1971	* One RTFileRead profiling iteration.
1972	*/
1973	DECL_FORCE_INLINE(int) fsPerfIoReadWorker(RTFILE hFile1, uint64_t cbFile, uint32_t cbBlock, uint8_t *pbBlock,
1974	uint64_t poffActual, uint32_t pcSeeks)
1975	{
1976	/* Do we need to seek back to the start? */
1977	if (*poffActual + cbBlock <= cbFile)
1978	{ /* likely */ }
1979	else
1980	{
1981	RTTESTI_CHECK_RC_RET(RTFileSeek(hFile1, 0, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS, rcCheck);
1982	*pcSeeks += 1;
1983	*poffActual = 0;
1984	}
1985
1986	size_t cbActuallyRead = 0;
1987	RTTESTI_CHECK_RC_RET(RTFileRead(hFile1, pbBlock, cbBlock, &cbActuallyRead), VINF_SUCCESS, rcCheck);
1988	if (cbActuallyRead == cbBlock)
1989	{
1990	*poffActual += cbActuallyRead;
1991	return VINF_SUCCESS;
1992	}
1993	RTTestIFailed("RTFileRead at %#RX64 returned just %#x bytes, expected %#x", *poffActual, cbActuallyRead, cbBlock);
1994	*poffActual += cbActuallyRead;
1995	return VERR_READ_ERROR;
1996	}
1997
1998
1999	void fsPerfIoReadBlockSize(RTFILE hFile1, uint64_t cbFile, uint32_t cbBlock)
2000	{
2001	RTTestISubF("IO - Sequential read %RU32", cbBlock);
2002
2003	uint8_t pbBuf = (uint8_t )RTMemPageAlloc(cbBlock);
2004	if (pbBuf)
2005	{
2006	memset(pbBuf, 0xf7, cbBlock);
2007	PROFILE_IO_FN("RTFileRead", fsPerfIoReadWorker(hFile1, cbFile, cbBlock, pbBuf, &offActual, &cSeeks));
2008	RTMemPageFree(pbBuf, cbBlock);
2009	}
2010	else
2011	RTTestSkipped(g_hTest, "insufficient (virtual) memory available");
2012	}
2013
2014
2015	/** preadv is too new to be useful, so we use the readv api via this wrapper. */
2016	DECLINLINE(int) myFileSgReadAt(RTFILE hFile, RTFOFF off, PRTSGBUF pSgBuf, size_t cbToRead, size_t *pcbRead)
2017	{
2018	int rc = RTFileSeek(hFile, off, RTFILE_SEEK_BEGIN, NULL);
2019	if (RT_SUCCESS(rc))
2020	rc = RTFileSgRead(hFile, pSgBuf, cbToRead, pcbRead);
2021	return rc;
2022	}
2023
2024
2025	void fsPerfRead(RTFILE hFile1, RTFILE hFileNoCache, uint64_t cbFile)
2026	{
2027	RTTestISubF("IO - RTFileRead");
2028
2029	/*
2030	* Allocate a big buffer we can play around with. Min size is 1MB.
2031	*/
2032	size_t cbBuf = cbFile < _64M ? (size_t)cbFile : _64M;
2033	uint8_t pbBuf = (uint8_t )RTMemPageAlloc(cbBuf);
2034	while (!pbBuf)
2035	{
2036	cbBuf /= 2;
2037	RTTESTI_CHECK_RETV(cbBuf >= _1M);
2038	pbBuf = (uint8_t *)RTMemPageAlloc(_32M);
2039	}
2040
2041	#if 1
2042	/*
2043	* Start at the beginning and read the full buffer in random small chunks, thereby
2044	* checking that unaligned buffer addresses, size and file offsets work fine.
2045	*/
2046	struct
2047	{
2048	uint64_t offFile;
2049	uint32_t cbMax;
2050	} aRuns[] = { { 0, 127 }, { cbFile - cbBuf, UINT32_MAX }, { 0, UINT32_MAX -1 }};
2051	for (uint32_t i = 0; i < RT_ELEMENTS(aRuns); i++)
2052	{
2053	memset(pbBuf, 0x55, cbBuf);
2054	RTTESTI_CHECK_RC(RTFileSeek(hFile1, aRuns[i].offFile, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS);
2055	for (size_t offBuf = 0; offBuf < cbBuf; )
2056	{
2057	uint32_t const cbLeft = (uint32_t)(cbBuf - offBuf);
2058	uint32_t const cbToRead = aRuns[i].cbMax < UINT32_MAX / 2 ? RTRandU32Ex(1, RT_MIN(aRuns[i].cbMax, cbLeft))
2059	: aRuns[i].cbMax == UINT32_MAX ? RTRandU32Ex(RT_MAX(cbLeft / 4, 1), cbLeft)
2060	: RTRandU32Ex(cbLeft >= _8K ? _8K : 1, RT_MIN(_1M, cbLeft));
2061	size_t cbActual = 0;
2062	RTTESTI_CHECK_RC(RTFileRead(hFile1, &pbBuf[offBuf], cbToRead, &cbActual), VINF_SUCCESS);
2063	if (cbActual == cbToRead)
2064	{
2065	offBuf += cbActual;
2066	RTTESTI_CHECK_MSG(RTFileTell(hFile1) == aRuns[i].offFile + offBuf,
2067	("%#RX64, expected %#RX64\n", RTFileTell(hFile1), aRuns[i].offFile + offBuf));
2068	}
2069	else
2070	{
2071	RTTestIFailed("Attempting to read %#x bytes at %#zx, only got %#x bytes back! (cbLeft=%#x cbBuf=%#zx)\n",
2072	cbToRead, offBuf, cbActual, cbLeft, cbBuf);
2073	if (cbActual)
2074	offBuf += cbActual;
2075	else
2076	pbBuf[offBuf++] = 0x11;
2077	}
2078	}
2079	fsPerfCheckReadBuf(__LINE__, aRuns[i].offFile, pbBuf, cbBuf);
2080	}
2081
2082	/*
2083	* Test reading beyond the end of the file.
2084	*/
2085	size_t const acbMax[] = { cbBuf, _64K, _16K, _4K, 256 };
2086	uint32_t const aoffFromEos[] =
2087	{ 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,
2088	4092, 4093, 4094, 4095, 4096, 4097, 4098, 4099, 4100, 8192, 16384, 32767, 32768, 32769, 65535, 65536, _1M - 1
2089	};
2090	for (unsigned iMax = 0; iMax < RT_ELEMENTS(acbMax); iMax++)
2091	{
2092	size_t const cbMaxRead = acbMax[iMax];
2093	for (uint32_t iOffFromEos = 0; iOffFromEos < RT_ELEMENTS(aoffFromEos); iOffFromEos++)
2094	{
2095	uint32_t off = aoffFromEos[iOffFromEos];
2096	if (off >= cbMaxRead)
2097	continue;
2098	RTTESTI_CHECK_RC(RTFileSeek(hFile1, cbFile - off, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS);
2099	size_t cbActual = ~(size_t)0;
2100	RTTESTI_CHECK_RC(RTFileRead(hFile1, pbBuf, cbMaxRead, &cbActual), VINF_SUCCESS);
2101	RTTESTI_CHECK(cbActual == off);
2102
2103	RTTESTI_CHECK_RC(RTFileSeek(hFile1, cbFile - off, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS);
2104	cbActual = ~(size_t)0;
2105	RTTESTI_CHECK_RC(RTFileRead(hFile1, pbBuf, off, &cbActual), VINF_SUCCESS);
2106	RTTESTI_CHECK_MSG(cbActual == off, ("%#zx vs %#zx\n", cbActual, off));
2107
2108	cbActual = ~(size_t)0;
2109	RTTESTI_CHECK_RC(RTFileRead(hFile1, pbBuf, 1, &cbActual), VINF_SUCCESS);
2110	RTTESTI_CHECK_MSG(cbActual == 0, ("cbActual=%zu\n", cbActual));
2111
2112	RTTESTI_CHECK_RC(RTFileRead(hFile1, pbBuf, cbMaxRead, NULL), VERR_EOF);
2113
2114	/* Repeat using native APIs in case IPRT or other layers hid status codes: */
2115	#if defined(RT_OS_OS2) \|\| defined(RT_OS_WINDOWS)
2116	RTTESTI_CHECK_RC(RTFileSeek(hFile1, cbFile - off, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS);
2117	# ifdef RT_OS_OS2
2118	ULONG cbActual2 = ~(ULONG)0;
2119	APIRET orc = DosRead((HFILE)RTFileToNative(hFile1), pbBuf, cbMaxRead, &cbActual2);
2120	RTTESTI_CHECK_MSG(orc == NO_ERROR, ("orc=%u, expected 0\n", orc));
2121	RTTESTI_CHECK_MSG(cbActual2 == off, ("%#x vs %#x\n", cbActual2, off));
2122	# else
2123	IO_STATUS_BLOCK Ios = RTNT_IO_STATUS_BLOCK_INITIALIZER;
2124	NTSTATUS rcNt = NtReadFile((HANDLE)RTFileToNative(hFile1), NULL /hEvent/, NULL /ApcRoutine/, NULL /ApcContext/,
2125	&Ios, pbBuf, (ULONG)cbMaxRead, NULL /poffFile/, NULL /Key/);
2126	if (off == 0)
2127	RTTESTI_CHECK_MSG(rcNt == STATUS_END_OF_FILE, ("rcNt=%#x, expected %#x\n", rcNt, STATUS_END_OF_FILE));
2128	else
2129	RTTESTI_CHECK_MSG(rcNt == STATUS_SUCCESS, ("rcNt=%#x, expected 0 (off=%#x cbMaxRead=%#zx)\n", rcNt, off, cbMaxRead));
2130	RTTESTI_CHECK_MSG(Ios.Information == off, ("%#zx vs %#x\n", Ios.Information, off));
2131	# endif
2132
2133	# ifdef RT_OS_OS2
2134	cbActual2 = ~(ULONG)0;
2135	orc = DosRead((HFILE)RTFileToNative(hFile1), pbBuf, 1, &cbActual2);
2136	RTTESTI_CHECK_MSG(orc == NO_ERROR, ("orc=%u, expected 0\n", orc));
2137	RTTESTI_CHECK_MSG(cbActual2 == 0, ("cbActual2=%u\n", cbActual2));
2138	# else
2139	RTNT_IO_STATUS_BLOCK_REINIT(&Ios);
2140	rcNt = NtReadFile((HANDLE)RTFileToNative(hFile1), NULL /hEvent/, NULL /ApcRoutine/, NULL /ApcContext/,
2141	&Ios, pbBuf, 1, NULL /poffFile/, NULL /Key/);
2142	RTTESTI_CHECK_MSG(rcNt == STATUS_END_OF_FILE, ("rcNt=%#x, expected %#x\n", rcNt, STATUS_END_OF_FILE));
2143	# endif
2144
2145	#endif
2146	}
2147	}
2148
2149	/*
2150	* Test reading beyond end of the file.
2151	*/
2152	for (unsigned iMax = 0; iMax < RT_ELEMENTS(acbMax); iMax++)
2153	{
2154	size_t const cbMaxRead = acbMax[iMax];
2155	for (uint32_t off = 0; off < 256; off++)
2156	{
2157	RTTESTI_CHECK_RC(RTFileSeek(hFile1, cbFile + off, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS);
2158	size_t cbActual = ~(size_t)0;
2159	RTTESTI_CHECK_RC(RTFileRead(hFile1, pbBuf, cbMaxRead, &cbActual), VINF_SUCCESS);
2160	RTTESTI_CHECK(cbActual == 0);
2161
2162	RTTESTI_CHECK_RC(RTFileRead(hFile1, pbBuf, cbMaxRead, NULL), VERR_EOF);
2163
2164	/* Repeat using native APIs in case IPRT or other layers hid status codes: */
2165	#if defined(RT_OS_OS2) \|\| defined(RT_OS_WINDOWS)
2166	RTTESTI_CHECK_RC(RTFileSeek(hFile1, cbFile + off, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS);
2167	# ifdef RT_OS_OS2
2168	ULONG cbActual2 = ~(ULONG)0;
2169	APIRET orc = DosRead((HFILE)RTFileToNative(hFile1), pbBuf, cbMaxRead, &cbActual2);
2170	RTTESTI_CHECK_MSG(orc == NO_ERROR, ("orc=%u, expected 0\n", orc));
2171	RTTESTI_CHECK_MSG(cbActual2 == 0, ("%#x vs %#x\n", cbActual2, off));
2172	# else
2173	IO_STATUS_BLOCK Ios = RTNT_IO_STATUS_BLOCK_INITIALIZER;
2174	NTSTATUS rcNt = NtReadFile((HANDLE)RTFileToNative(hFile1), NULL /hEvent/, NULL /ApcRoutine/, NULL /ApcContext/,
2175	&Ios, pbBuf, (ULONG)cbMaxRead, NULL /poffFile/, NULL /Key/);
2176	RTTESTI_CHECK_MSG(rcNt == STATUS_END_OF_FILE, ("rcNt=%#x, expected %#x\n", rcNt, STATUS_END_OF_FILE));
2177	# endif
2178	#endif
2179	}
2180	}
2181
2182	/*
2183	* Do uncached access, must be page aligned.
2184	*/
2185	uint32_t cbPage = PAGE_SIZE;
2186	memset(pbBuf, 0x66, cbBuf);
2187	if (!g_fIgnoreNoCache \|\| hFileNoCache != NIL_RTFILE)
2188	{
2189	RTTESTI_CHECK_RC(RTFileSeek(hFileNoCache, 0, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS);
2190	for (size_t offBuf = 0; offBuf < cbBuf; )
2191	{
2192	uint32_t const cPagesLeft = (uint32_t)((cbBuf - offBuf) / cbPage);
2193	uint32_t const cPagesToRead = RTRandU32Ex(1, cPagesLeft);
2194	size_t const cbToRead = cPagesToRead * (size_t)cbPage;
2195	size_t cbActual = 0;
2196	RTTESTI_CHECK_RC(RTFileRead(hFileNoCache, &pbBuf[offBuf], cbToRead, &cbActual), VINF_SUCCESS);
2197	if (cbActual == cbToRead)
2198	offBuf += cbActual;
2199	else
2200	{
2201	RTTestIFailed("Attempting to read %#zx bytes at %#zx, only got %#x bytes back!\n", cbToRead, offBuf, cbActual);
2202	if (cbActual)
2203	offBuf += cbActual;
2204	else
2205	{
2206	memset(&pbBuf[offBuf], 0x11, cbPage);
2207	offBuf += cbPage;
2208	}
2209	}
2210	}
2211	fsPerfCheckReadBuf(__LINE__, 0, pbBuf, cbBuf);
2212	}
2213
2214	/*
2215	* Check reading zero bytes at the end of the file.
2216	* Requires native call because RTFileWrite doesn't call kernel on zero byte reads.
2217	*/
2218	RTTESTI_CHECK_RC(RTFileSeek(hFile1, 0, RTFILE_SEEK_END, NULL), VINF_SUCCESS);
2219	# ifdef RT_OS_WINDOWS
2220	IO_STATUS_BLOCK Ios = RTNT_IO_STATUS_BLOCK_INITIALIZER;
2221	NTSTATUS rcNt = NtReadFile((HANDLE)RTFileToNative(hFile1), NULL, NULL, NULL, &Ios, pbBuf, 0, NULL, NULL);
2222	RTTESTI_CHECK_MSG(rcNt == STATUS_SUCCESS, ("rcNt=%#x", rcNt));
2223	RTTESTI_CHECK(Ios.Status == STATUS_SUCCESS);
2224	RTTESTI_CHECK(Ios.Information == 0);
2225
2226	RTNT_IO_STATUS_BLOCK_REINIT(&Ios);
2227	rcNt = NtReadFile((HANDLE)RTFileToNative(hFile1), NULL, NULL, NULL, &Ios, pbBuf, 1, NULL, NULL);
2228	RTTESTI_CHECK_MSG(rcNt == STATUS_END_OF_FILE, ("rcNt=%#x", rcNt));
2229	RTTESTI_CHECK(Ios.Status == STATUS_END_OF_FILE);
2230	RTTESTI_CHECK(Ios.Information == 0);
2231	# else
2232	ssize_t cbRead = read((int)RTFileToNative(hFile1), pbBuf, 0);
2233	RTTESTI_CHECK(cbRead == 0);
2234	# endif
2235
2236	#else
2237	RT_NOREF(hFileNoCache);
2238	#endif
2239
2240	/*
2241	* Scatter read function operation.
2242	*/
2243	#ifdef RT_OS_WINDOWS
2244	/** @todo RTFileSgReadAt is just a RTFileReadAt loop for windows NT. Need
2245	* to use ReadFileScatter (nocache + page aligned). */
2246	#elif !defined(RT_OS_OS2) /** @todo implement RTFileSg using list i/o */
2247
2248	# ifdef UIO_MAXIOV
2249	RTSGSEG aSegs[UIO_MAXIOV];
2250	# else
2251	RTSGSEG aSegs[512];
2252	# endif
2253	RTSGBUF SgBuf;
2254	uint32_t cIncr = 1;
2255	for (uint32_t cSegs = 1; cSegs <= RT_ELEMENTS(aSegs); cSegs += cIncr)
2256	{
2257	size_t const cbSeg = cbBuf / cSegs;
2258	size_t const cbToRead = cbSeg * cSegs;
2259	for (uint32_t iSeg = 0; iSeg < cSegs; iSeg++)
2260	{
2261	aSegs[iSeg].cbSeg = cbSeg;
2262	aSegs[iSeg].pvSeg = &pbBuf[cbToRead - (iSeg + 1) * cbSeg];
2263	}
2264	RTSgBufInit(&SgBuf, &aSegs[0], cSegs);
2265	int rc = myFileSgReadAt(hFile1, 0, &SgBuf, cbToRead, NULL);
2266	if (RT_SUCCESS(rc))
2267	for (uint32_t iSeg = 0; iSeg < cSegs; iSeg++)
2268	{
2269	if (!fsPerfCheckReadBuf(__LINE__, iSeg * cbSeg, &pbBuf[cbToRead - (iSeg + 1) * cbSeg], cbSeg))
2270	{
2271	cSegs = RT_ELEMENTS(aSegs);
2272	break;
2273	}
2274	}
2275	else
2276	{
2277	RTTestIFailed("myFileSgReadAt failed: %Rrc - cSegs=%u cbSegs=%#zx cbToRead=%#zx", rc, cSegs, cbSeg, cbToRead);
2278	break;
2279	}
2280	if (cSegs == 16)
2281	cIncr = 7;
2282	else if (cSegs == 16 * 7 + 16 /= 128/)
2283	cIncr = 64;
2284	}
2285
2286	for (uint32_t iTest = 0; iTest < 128; iTest++)
2287	{
2288	uint32_t cSegs = RTRandU32Ex(1, RT_ELEMENTS(aSegs));
2289	uint32_t iZeroSeg = cSegs > 10 ? RTRandU32Ex(0, cSegs - 1) : UINT32_MAX / 2;
2290	uint32_t cZeroSegs = cSegs > 10 ? RTRandU32Ex(1, RT_MIN(cSegs - iZeroSeg, 25)) : 0;
2291	size_t cbToRead = 0;
2292	size_t cbLeft = cbBuf;
2293	uint8_t *pbCur = &pbBuf[cbBuf];
2294	for (uint32_t iSeg = 0; iSeg < cSegs; iSeg++)
2295	{
2296	uint32_t iAlign = RTRandU32Ex(0, 3);
2297	if (iAlign & 2) /* end is page aligned */
2298	{
2299	cbLeft -= (uintptr_t)pbCur & PAGE_OFFSET_MASK;
2300	pbCur -= (uintptr_t)pbCur & PAGE_OFFSET_MASK;
2301	}
2302
2303	size_t cbSegOthers = (cSegs - iSeg) * _8K;
2304	size_t cbSegMax = cbLeft > cbSegOthers ? cbLeft - cbSegOthers
2305	: cbLeft > cSegs ? cbLeft - cSegs
2306	: cbLeft;
2307	size_t cbSeg = cbLeft != 0 ? RTRandU32Ex(0, cbSegMax) : 0;
2308	if (iAlign & 1) /* start is page aligned */
2309	cbSeg += ((uintptr_t)pbCur - cbSeg) & PAGE_OFFSET_MASK;
2310
2311	if (iSeg - iZeroSeg < cZeroSegs)
2312	cbSeg = 0;
2313
2314	cbToRead += cbSeg;
2315	cbLeft -= cbSeg;
2316	pbCur -= cbSeg;
2317	aSegs[iSeg].cbSeg = cbSeg;
2318	aSegs[iSeg].pvSeg = pbCur;
2319	}
2320
2321	uint64_t offFile = cbToRead < cbFile ? RTRandU64Ex(0, cbFile - cbToRead) : 0;
2322	RTSgBufInit(&SgBuf, &aSegs[0], cSegs);
2323	int rc = myFileSgReadAt(hFile1, offFile, &SgBuf, cbToRead, NULL);
2324	if (RT_SUCCESS(rc))
2325	for (uint32_t iSeg = 0; iSeg < cSegs; iSeg++)
2326	{
2327	if (!fsPerfCheckReadBuf(__LINE__, offFile, (uint8_t *)aSegs[iSeg].pvSeg, aSegs[iSeg].cbSeg))
2328	{
2329	RTTestIFailureDetails("iSeg=%#x cSegs=%#x cbSeg=%#zx cbToRead=%#zx\n", iSeg, cSegs, aSegs[iSeg].cbSeg, cbToRead);
2330	iTest = _16K;
2331	break;
2332	}
2333	offFile += aSegs[iSeg].cbSeg;
2334	}
2335	else
2336	{
2337	RTTestIFailed("myFileSgReadAt failed: %Rrc - cSegs=%#x cbToRead=%#zx", rc, cSegs, cbToRead);
2338	break;
2339	}
2340	}
2341
2342	#endif
2343
2344	/*
2345	* Other OS specific stuff.
2346	*/
2347	#ifdef RT_OS_WINDOWS
2348	/* Check that reading at an offset modifies the position: */
2349	RTTESTI_CHECK_RC(RTFileSeek(hFile1, 0, RTFILE_SEEK_END, NULL), VINF_SUCCESS);
2350	RTTESTI_CHECK(RTFileTell(hFile1) == cbFile);
2351
2352	RTNT_IO_STATUS_BLOCK_REINIT(&Ios);
2353	LARGE_INTEGER offNt;
2354	offNt.QuadPart = cbFile / 2;
2355	rcNt = NtReadFile((HANDLE)RTFileToNative(hFile1), NULL, NULL, NULL, &Ios, pbBuf, _4K, &offNt, NULL);
2356	RTTESTI_CHECK_MSG(rcNt == STATUS_SUCCESS, ("rcNt=%#x", rcNt));
2357	RTTESTI_CHECK(Ios.Status == STATUS_SUCCESS);
2358	RTTESTI_CHECK(Ios.Information == _4K);
2359	RTTESTI_CHECK(RTFileTell(hFile1) == cbFile / 2 + _4K);
2360	fsPerfCheckReadBuf(__LINE__, cbFile / 2, pbBuf, _4K);
2361	#endif
2362
2363
2364	RTMemPageFree(pbBuf, cbBuf);
2365	}
2366
2367
2368	/**
2369	* One RTFileWrite profiling iteration.
2370	*/
2371	DECL_FORCE_INLINE(int) fsPerfIoWriteWorker(RTFILE hFile1, uint64_t cbFile, uint32_t cbBlock, uint8_t *pbBlock,
2372	uint64_t poffActual, uint32_t pcSeeks)
2373	{
2374	/* Do we need to seek back to the start? */
2375	if (*poffActual + cbBlock <= cbFile)
2376	{ /* likely */ }
2377	else
2378	{
2379	RTTESTI_CHECK_RC_RET(RTFileSeek(hFile1, 0, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS, rcCheck);
2380	*pcSeeks += 1;
2381	*poffActual = 0;
2382	}
2383
2384	size_t cbActuallyWritten = 0;
2385	RTTESTI_CHECK_RC_RET(RTFileWrite(hFile1, pbBlock, cbBlock, &cbActuallyWritten), VINF_SUCCESS, rcCheck);
2386	if (cbActuallyWritten == cbBlock)
2387	{
2388	*poffActual += cbActuallyWritten;
2389	return VINF_SUCCESS;
2390	}
2391	RTTestIFailed("RTFileWrite at %#RX64 returned just %#x bytes, expected %#x", *poffActual, cbActuallyWritten, cbBlock);
2392	*poffActual += cbActuallyWritten;
2393	return VERR_WRITE_ERROR;
2394	}
2395
2396
2397	void fsPerfIoWriteBlockSize(RTFILE hFile1, uint64_t cbFile, uint32_t cbBlock)
2398	{
2399	RTTestISubF("IO - Sequential write %RU32", cbBlock);
2400
2401	uint8_t pbBuf = (uint8_t )RTMemPageAlloc(cbBlock);
2402	if (pbBuf)
2403	{
2404	memset(pbBuf, 0xf7, cbBlock);
2405	PROFILE_IO_FN("RTFileWrite", fsPerfIoWriteWorker(hFile1, cbFile, cbBlock, pbBuf, &offActual, &cSeeks));
2406	RTMemPageFree(pbBuf, cbBlock);
2407	}
2408	else
2409	RTTestSkipped(g_hTest, "insufficient (virtual) memory available");
2410	}
2411
2412
2413	/** pwritev is too new to be useful, so we use the writev api via this wrapper. */
2414	DECLINLINE(int) myFileSgWriteAt(RTFILE hFile, RTFOFF off, PRTSGBUF pSgBuf, size_t cbToWrite, size_t *pcbWritten)
2415	{
2416	int rc = RTFileSeek(hFile, off, RTFILE_SEEK_BEGIN, NULL);
2417	if (RT_SUCCESS(rc))
2418	rc = RTFileSgWrite(hFile, pSgBuf, cbToWrite, pcbWritten);
2419	return rc;
2420	}
2421
2422
2423	void fsPerfWrite(RTFILE hFile1, RTFILE hFileNoCache, RTFILE hFileWriteThru, uint64_t cbFile)
2424	{
2425	RTTestISubF("IO - RTFileWrite");
2426
2427	/*
2428	* Allocate a big buffer we can play around with. Min size is 1MB.
2429	*/
2430	size_t cbBuf = cbFile < _64M ? (size_t)cbFile : _64M;
2431	uint8_t pbBuf = (uint8_t )RTMemPageAlloc(cbBuf);
2432	while (!pbBuf)
2433	{
2434	cbBuf /= 2;
2435	RTTESTI_CHECK_RETV(cbBuf >= _1M);
2436	pbBuf = (uint8_t *)RTMemPageAlloc(_32M);
2437	}
2438
2439	uint8_t bFiller = 0x88;
2440
2441	#if 1
2442	/*
2443	* Start at the beginning and write out the full buffer in random small chunks, thereby
2444	* checking that unaligned buffer addresses, size and file offsets work fine.
2445	*/
2446	struct
2447	{
2448	uint64_t offFile;
2449	uint32_t cbMax;
2450	} aRuns[] = { { 0, 127 }, { cbFile - cbBuf, UINT32_MAX }, { 0, UINT32_MAX -1 }};
2451	for (uint32_t i = 0; i < RT_ELEMENTS(aRuns); i++, bFiller)
2452	{
2453	fsPerfFillWriteBuf(aRuns[i].offFile, pbBuf, cbBuf, bFiller);
2454	fsPerfCheckReadBuf(__LINE__, aRuns[i].offFile, pbBuf, cbBuf, bFiller);
2455
2456	RTTESTI_CHECK_RC(RTFileSeek(hFile1, aRuns[i].offFile, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS);
2457	for (size_t offBuf = 0; offBuf < cbBuf; )
2458	{
2459	uint32_t const cbLeft = (uint32_t)(cbBuf - offBuf);
2460	uint32_t const cbToWrite = aRuns[i].cbMax < UINT32_MAX / 2 ? RTRandU32Ex(1, RT_MIN(aRuns[i].cbMax, cbLeft))
2461	: aRuns[i].cbMax == UINT32_MAX ? RTRandU32Ex(RT_MAX(cbLeft / 4, 1), cbLeft)
2462	: RTRandU32Ex(cbLeft >= _8K ? _8K : 1, RT_MIN(_1M, cbLeft));
2463	size_t cbActual = 0;
2464	RTTESTI_CHECK_RC(RTFileWrite(hFile1, &pbBuf[offBuf], cbToWrite, &cbActual), VINF_SUCCESS);
2465	if (cbActual == cbToWrite)
2466	{
2467	offBuf += cbActual;
2468	RTTESTI_CHECK_MSG(RTFileTell(hFile1) == aRuns[i].offFile + offBuf,
2469	("%#RX64, expected %#RX64\n", RTFileTell(hFile1), aRuns[i].offFile + offBuf));
2470	}
2471	else
2472	{
2473	RTTestIFailed("Attempting to write %#x bytes at %#zx (%#x left), only got %#x written!\n",
2474	cbToWrite, offBuf, cbLeft, cbActual);
2475	if (cbActual)
2476	offBuf += cbActual;
2477	else
2478	pbBuf[offBuf++] = 0x11;
2479	}
2480	}
2481
2482	RTTESTI_CHECK_RC(RTFileReadAt(hFile1, aRuns[i].offFile, pbBuf, cbBuf, NULL), VINF_SUCCESS);
2483	fsPerfCheckReadBuf(__LINE__, aRuns[i].offFile, pbBuf, cbBuf, bFiller);
2484	}
2485
2486
2487	/*
2488	* Do uncached and write-thru accesses, must be page aligned.
2489	*/
2490	RTFILE ahFiles[2] = { hFileWriteThru, hFileNoCache };
2491	for (unsigned iFile = 0; iFile < RT_ELEMENTS(ahFiles); iFile++, bFiller++)
2492	{
2493	if (g_fIgnoreNoCache && ahFiles[iFile] == NIL_RTFILE)
2494	continue;
2495
2496	fsPerfFillWriteBuf(0, pbBuf, cbBuf, bFiller);
2497	fsPerfCheckReadBuf(__LINE__, 0, pbBuf, cbBuf, bFiller);
2498	RTTESTI_CHECK_RC(RTFileSeek(ahFiles[iFile], 0, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS);
2499
2500	uint32_t cbPage = PAGE_SIZE;
2501	for (size_t offBuf = 0; offBuf < cbBuf; )
2502	{
2503	uint32_t const cPagesLeft = (uint32_t)((cbBuf - offBuf) / cbPage);
2504	uint32_t const cPagesToWrite = RTRandU32Ex(1, cPagesLeft);
2505	size_t const cbToWrite = cPagesToWrite * (size_t)cbPage;
2506	size_t cbActual = 0;
2507	RTTESTI_CHECK_RC(RTFileWrite(ahFiles[iFile], &pbBuf[offBuf], cbToWrite, &cbActual), VINF_SUCCESS);
2508	if (cbActual == cbToWrite)
2509	{
2510	RTTESTI_CHECK_RC(RTFileReadAt(hFile1, offBuf, pbBuf, cbToWrite, NULL), VINF_SUCCESS);
2511	fsPerfCheckReadBuf(__LINE__, offBuf, pbBuf, cbToWrite, bFiller);
2512	offBuf += cbActual;
2513	}
2514	else
2515	{
2516	RTTestIFailed("Attempting to read %#zx bytes at %#zx, only got %#x written!\n", cbToWrite, offBuf, cbActual);
2517	if (cbActual)
2518	offBuf += cbActual;
2519	else
2520	{
2521	memset(&pbBuf[offBuf], 0x11, cbPage);
2522	offBuf += cbPage;
2523	}
2524	}
2525	}
2526
2527	RTTESTI_CHECK_RC(RTFileReadAt(ahFiles[iFile], 0, pbBuf, cbBuf, NULL), VINF_SUCCESS);
2528	fsPerfCheckReadBuf(__LINE__, 0, pbBuf, cbBuf, bFiller);
2529	}
2530
2531	/*
2532	* Check the behavior of writing zero bytes to the file _4K from the end
2533	* using native API. In the olden days zero sized write have been known
2534	* to be used to truncate a file.
2535	*/
2536	RTTESTI_CHECK_RC(RTFileSeek(hFile1, -_4K, RTFILE_SEEK_END, NULL), VINF_SUCCESS);
2537	# ifdef RT_OS_WINDOWS
2538	IO_STATUS_BLOCK Ios = RTNT_IO_STATUS_BLOCK_INITIALIZER;
2539	NTSTATUS rcNt = NtWriteFile((HANDLE)RTFileToNative(hFile1), NULL, NULL, NULL, &Ios, pbBuf, 0, NULL, NULL);
2540	RTTESTI_CHECK_MSG(rcNt == STATUS_SUCCESS, ("rcNt=%#x", rcNt));
2541	RTTESTI_CHECK(Ios.Status == STATUS_SUCCESS);
2542	RTTESTI_CHECK(Ios.Information == 0);
2543	# else
2544	ssize_t cbWritten = write((int)RTFileToNative(hFile1), pbBuf, 0);
2545	RTTESTI_CHECK(cbWritten == 0);
2546	# endif
2547	RTTESTI_CHECK_RC(RTFileRead(hFile1, pbBuf, _4K, NULL), VINF_SUCCESS);
2548	fsPerfCheckReadBuf(__LINE__, cbFile - _4K, pbBuf, _4K, pbBuf[0x8]);
2549
2550	#else
2551	RT_NOREF(hFileNoCache, hFileWriteThru);
2552	#endif
2553
2554	/*
2555	* Gather write function operation.
2556	*/
2557	#ifdef RT_OS_WINDOWS
2558	/** @todo RTFileSgWriteAt is just a RTFileWriteAt loop for windows NT. Need
2559	* to use WriteFileGather (nocache + page aligned). */
2560	#elif !defined(RT_OS_OS2) /** @todo implement RTFileSg using list i/o */
2561
2562	# ifdef UIO_MAXIOV
2563	RTSGSEG aSegs[UIO_MAXIOV];
2564	# else
2565	RTSGSEG aSegs[512];
2566	# endif
2567	RTSGBUF SgBuf;
2568	uint32_t cIncr = 1;
2569	for (uint32_t cSegs = 1; cSegs <= RT_ELEMENTS(aSegs); cSegs += cIncr, bFiller++)
2570	{
2571	size_t const cbSeg = cbBuf / cSegs;
2572	size_t const cbToWrite = cbSeg * cSegs;
2573	for (uint32_t iSeg = 0; iSeg < cSegs; iSeg++)
2574	{
2575	aSegs[iSeg].cbSeg = cbSeg;
2576	aSegs[iSeg].pvSeg = &pbBuf[cbToWrite - (iSeg + 1) * cbSeg];
2577	fsPerfFillWriteBuf(iSeg * cbSeg, (uint8_t *)aSegs[iSeg].pvSeg, cbSeg, bFiller);
2578	}
2579	RTSgBufInit(&SgBuf, &aSegs[0], cSegs);
2580	int rc = myFileSgWriteAt(hFile1, 0, &SgBuf, cbToWrite, NULL);
2581	if (RT_SUCCESS(rc))
2582	{
2583	RTTESTI_CHECK_RC(RTFileReadAt(hFile1, 0, pbBuf, cbToWrite, NULL), VINF_SUCCESS);
2584	fsPerfCheckReadBuf(__LINE__, 0, pbBuf, cbToWrite, bFiller);
2585	}
2586	else
2587	{
2588	RTTestIFailed("myFileSgWriteAt failed: %Rrc - cSegs=%u cbSegs=%#zx cbToWrite=%#zx", rc, cSegs, cbSeg, cbToWrite);
2589	break;
2590	}
2591	if (cSegs == 16)
2592	cIncr = 7;
2593	else if (cSegs == 16 * 7 + 16 /= 128/)
2594	cIncr = 64;
2595	}
2596
2597	/* random stuff, including zero segments. */
2598	for (uint32_t iTest = 0; iTest < 128; iTest++, bFiller++)
2599	{
2600	uint32_t cSegs = RTRandU32Ex(1, RT_ELEMENTS(aSegs));
2601	uint32_t iZeroSeg = cSegs > 10 ? RTRandU32Ex(0, cSegs - 1) : UINT32_MAX / 2;
2602	uint32_t cZeroSegs = cSegs > 10 ? RTRandU32Ex(1, RT_MIN(cSegs - iZeroSeg, 25)) : 0;
2603	size_t cbToWrite = 0;
2604	size_t cbLeft = cbBuf;
2605	uint8_t *pbCur = &pbBuf[cbBuf];
2606	for (uint32_t iSeg = 0; iSeg < cSegs; iSeg++)
2607	{
2608	uint32_t iAlign = RTRandU32Ex(0, 3);
2609	if (iAlign & 2) /* end is page aligned */
2610	{
2611	cbLeft -= (uintptr_t)pbCur & PAGE_OFFSET_MASK;
2612	pbCur -= (uintptr_t)pbCur & PAGE_OFFSET_MASK;
2613	}
2614
2615	size_t cbSegOthers = (cSegs - iSeg) * _8K;
2616	size_t cbSegMax = cbLeft > cbSegOthers ? cbLeft - cbSegOthers
2617	: cbLeft > cSegs ? cbLeft - cSegs
2618	: cbLeft;
2619	size_t cbSeg = cbLeft != 0 ? RTRandU32Ex(0, cbSegMax) : 0;
2620	if (iAlign & 1) /* start is page aligned */
2621	cbSeg += ((uintptr_t)pbCur - cbSeg) & PAGE_OFFSET_MASK;
2622
2623	if (iSeg - iZeroSeg < cZeroSegs)
2624	cbSeg = 0;
2625
2626	cbToWrite += cbSeg;
2627	cbLeft -= cbSeg;
2628	pbCur -= cbSeg;
2629	aSegs[iSeg].cbSeg = cbSeg;
2630	aSegs[iSeg].pvSeg = pbCur;
2631	}
2632
2633	uint64_t const offFile = cbToWrite < cbFile ? RTRandU64Ex(0, cbFile - cbToWrite) : 0;
2634	uint64_t offFill = offFile;
2635	for (uint32_t iSeg = 0; iSeg < cSegs; iSeg++)
2636	if (aSegs[iSeg].cbSeg)
2637	{
2638	fsPerfFillWriteBuf(offFill, (uint8_t *)aSegs[iSeg].pvSeg, aSegs[iSeg].cbSeg, bFiller);
2639	offFill += aSegs[iSeg].cbSeg;
2640	}
2641
2642	RTSgBufInit(&SgBuf, &aSegs[0], cSegs);
2643	int rc = myFileSgWriteAt(hFile1, offFile, &SgBuf, cbToWrite, NULL);
2644	if (RT_SUCCESS(rc))
2645	{
2646	RTTESTI_CHECK_RC(RTFileReadAt(hFile1, offFile, pbBuf, cbToWrite, NULL), VINF_SUCCESS);
2647	fsPerfCheckReadBuf(__LINE__, offFile, pbBuf, cbToWrite, bFiller);
2648	}
2649	else
2650	{
2651	RTTestIFailed("myFileSgWriteAt failed: %Rrc - cSegs=%#x cbToWrite=%#zx", rc, cSegs, cbToWrite);
2652	break;
2653	}
2654	}
2655
2656	#endif
2657
2658	/*
2659	* Other OS specific stuff.
2660	*/
2661	#ifdef RT_OS_WINDOWS
2662	/* Check that reading at an offset modifies the position: */
2663	RTTESTI_CHECK_RC(RTFileReadAt(hFile1, cbFile / 2, pbBuf, _4K, NULL), VINF_SUCCESS);
2664	RTTESTI_CHECK_RC(RTFileSeek(hFile1, 0, RTFILE_SEEK_END, NULL), VINF_SUCCESS);
2665	RTTESTI_CHECK(RTFileTell(hFile1) == cbFile);
2666
2667	RTNT_IO_STATUS_BLOCK_REINIT(&Ios);
2668	LARGE_INTEGER offNt;
2669	offNt.QuadPart = cbFile / 2;
2670	rcNt = NtWriteFile((HANDLE)RTFileToNative(hFile1), NULL, NULL, NULL, &Ios, pbBuf, _4K, &offNt, NULL);
2671	RTTESTI_CHECK_MSG(rcNt == STATUS_SUCCESS, ("rcNt=%#x", rcNt));
2672	RTTESTI_CHECK(Ios.Status == STATUS_SUCCESS);
2673	RTTESTI_CHECK(Ios.Information == _4K);
2674	RTTESTI_CHECK(RTFileTell(hFile1) == cbFile / 2 + _4K);
2675	#endif
2676
2677	RTMemPageFree(pbBuf, cbBuf);
2678	}
2679
2680
2681	/**
2682	* Worker for testing RTFileFlush.
2683	*/
2684	DECL_FORCE_INLINE(int) fsPerfFSyncWorker(RTFILE hFile1, uint64_t cbFile, uint8_t pbBuf, size_t cbBuf, uint64_t poffFile)
2685	{
2686	if (*poffFile + cbBuf <= cbFile)
2687	{ /* likely */ }
2688	else
2689	{
2690	RTTESTI_CHECK_RC(RTFileSeek(hFile1, 0, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS);
2691	*poffFile = 0;
2692	}
2693
2694	RTTESTI_CHECK_RC_RET(RTFileWrite(hFile1, pbBuf, cbBuf, NULL), VINF_SUCCESS, rcCheck);
2695	RTTESTI_CHECK_RC_RET(RTFileFlush(hFile1), VINF_SUCCESS, rcCheck);
2696
2697	*poffFile += cbBuf;
2698	return VINF_SUCCESS;
2699	}
2700
2701
2702	void fsPerfFSync(RTFILE hFile1, uint64_t cbFile)
2703	{
2704	RTTestISub("fsync");
2705
2706	RTTESTI_CHECK_RC(RTFileFlush(hFile1), VINF_SUCCESS);
2707
2708	PROFILE_FN(RTFileFlush(hFile1), g_nsTestRun, "RTFileFlush");
2709
2710	size_t cbBuf = PAGE_SIZE;
2711	uint8_t pbBuf = (uint8_t )RTMemPageAlloc(cbBuf);
2712	RTTESTI_CHECK_RETV(pbBuf != NULL);
2713	memset(pbBuf, 0xf4, cbBuf);
2714
2715	RTTESTI_CHECK_RC(RTFileSeek(hFile1, 0, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS);
2716	uint64_t offFile = 0;
2717	PROFILE_FN(fsPerfFSyncWorker(hFile1, cbFile, pbBuf, cbBuf, &offFile), g_nsTestRun, "RTFileWrite[Page]/RTFileFlush");
2718
2719	RTMemPageFree(pbBuf, cbBuf);
2720	}
2721
2722
2723	#ifndef RT_OS_OS2
2724	/**
2725	* Worker for profiling msync.
2726	*/
2727	DECL_FORCE_INLINE(int) fsPerfMSyncWorker(uint8_t pbMapping, size_t offMapping, size_t cbFlush, size_t pcbFlushed)
2728	{
2729	uint8_t *pbCur = &pbMapping[offMapping];
2730	for (size_t offFlush = 0; offFlush < cbFlush; offFlush += PAGE_SIZE)
2731	(size_t volatile )&pbCur[offFlush + 8] = cbFlush;
2732	# ifdef RT_OS_WINDOWS
2733	RTTESTI_CHECK(FlushViewOfFile(pbCur, cbFlush));
2734	# else
2735	RTTESTI_CHECK(msync(pbCur, cbFlush, MS_SYNC) == 0);
2736	# endif
2737	if (*pcbFlushed < offMapping + cbFlush)
2738	*pcbFlushed = offMapping + cbFlush;
2739	return VINF_SUCCESS;
2740	}
2741	#endif /* !RT_OS_OS2 */
2742
2743
2744	void fsPerfMMap(RTFILE hFile1, RTFILE hFileNoCache, uint64_t cbFile)
2745	{
2746	RTTestISub("mmap");
2747	#if !defined(RT_OS_OS2)
2748	static const char * const s_apszStates[] = { "readonly", "writecopy", "readwrite" };
2749	enum { kMMap_ReadOnly = 0, kMMap_WriteCopy, kMMap_ReadWrite, kMMap_End };
2750	for (int enmState = kMMap_ReadOnly; enmState < kMMap_End; enmState++)
2751	{
2752	/*
2753	* Do the mapping.
2754	*/
2755	size_t cbMapping = (size_t)cbFile;
2756	if (cbMapping != cbFile)
2757	cbMapping = _256M;
2758	uint8_t *pbMapping;
2759
2760	# ifdef RT_OS_WINDOWS
2761	HANDLE hSection;
2762	pbMapping = NULL;
2763	for (;; cbMapping /= 2)
2764	{
2765	hSection = CreateFileMapping((HANDLE)RTFileToNative(hFile1), NULL,
2766	enmState == kMMap_ReadOnly ? PAGE_READONLY
2767	: enmState == kMMap_WriteCopy ? PAGE_WRITECOPY : PAGE_READWRITE,
2768	(uint32_t)((uint64_t)cbMapping >> 32), (uint32_t)cbMapping, NULL);
2769	DWORD dwErr1 = GetLastError();
2770	DWORD dwErr2 = 0;
2771	if (hSection != NULL)
2772	{
2773	pbMapping = (uint8_t *)MapViewOfFile(hSection,
2774	enmState == kMMap_ReadOnly ? FILE_MAP_READ
2775	: enmState == kMMap_WriteCopy ? FILE_MAP_COPY
2776	: FILE_MAP_WRITE,
2777	0, 0, cbMapping);
2778	if (pbMapping)
2779	break;
2780	dwErr2 = GetLastError();
2781	CloseHandle(hSection);
2782	}
2783	if (cbMapping <= _2M)
2784	{
2785	RTTestIFailed("%u/%s: CreateFileMapping or MapViewOfFile failed: %u, %u",
2786	enmState, s_apszStates[enmState], dwErr1, dwErr2);
2787	break;
2788	}
2789	}
2790	# else
2791	for (;; cbMapping /= 2)
2792	{
2793	pbMapping = (uint8_t *)mmap(NULL, cbMapping,
2794	enmState == kMMap_ReadOnly ? PROT_READ : PROT_READ \| PROT_WRITE,
2795	enmState == kMMap_WriteCopy ? MAP_PRIVATE : MAP_SHARED,
2796	(int)RTFileToNative(hFile1), 0);
2797	if ((void *)pbMapping != MAP_FAILED)
2798	break;
2799	if (cbMapping <= _2M)
2800	{
2801	RTTestIFailed("%u/%s: mmap failed: %s (%u)", enmState, s_apszStates[enmState], strerror(errno), errno);
2802	break;
2803	}
2804	}
2805	# endif
2806	if (cbMapping <= _2M)
2807	continue;
2808
2809	/*
2810	* Time page-ins just for fun.
2811	*/
2812	size_t const cPages = cbMapping >> PAGE_SHIFT;
2813	size_t uDummy = 0;
2814	uint64_t ns = RTTimeNanoTS();
2815	for (size_t iPage = 0; iPage < cPages; iPage++)
2816	uDummy += ASMAtomicReadU8(&pbMapping[iPage << PAGE_SHIFT]);
2817	ns = RTTimeNanoTS() - ns;
2818	RTTestIValueF(ns / cPages, RTTESTUNIT_NS_PER_OCCURRENCE, "page-in %s", s_apszStates[enmState]);
2819
2820	/* Check the content. */
2821	fsPerfCheckReadBuf(__LINE__, 0, pbMapping, cbMapping);
2822
2823	if (enmState != kMMap_ReadOnly)
2824	{
2825	/* Write stuff to the first two megabytes. In the COW case, we'll detect
2826	corruption of shared data during content checking of the RW iterations. */
2827	fsPerfFillWriteBuf(0, pbMapping, _2M, 0xf7);
2828	if (enmState == kMMap_ReadWrite)
2829	{
2830	/* For RW we can try read back from the file handle and check if we get
2831	a match there first. */
2832	uint8_t abBuf[_4K];
2833	for (uint32_t off = 0; off < _2M; off += sizeof(abBuf))
2834	{
2835	RTTESTI_CHECK_RC(RTFileReadAt(hFile1, off, abBuf, sizeof(abBuf), NULL), VINF_SUCCESS);
2836	fsPerfCheckReadBuf(__LINE__, off, abBuf, sizeof(abBuf), 0xf7);
2837	}
2838	# ifdef RT_OS_WINDOWS
2839	RTTESTI_CHECK(FlushViewOfFile(pbMapping, _2M));
2840	# else
2841	RTTESTI_CHECK(msync(pbMapping, _2M, MS_SYNC) == 0);
2842	# endif
2843
2844	/*
2845	* Time modifying and flushing a few different number of pages.
2846	*/
2847	static size_t const s_acbFlush[] = { PAGE_SIZE, PAGE_SIZE * 2, PAGE_SIZE * 3, PAGE_SIZE * 8, PAGE_SIZE * 16, _2M };
2848	for (unsigned iFlushSize = 0 ; iFlushSize < RT_ELEMENTS(s_acbFlush); iFlushSize++)
2849	{
2850	size_t const cbFlush = s_acbFlush[iFlushSize];
2851	if (cbFlush > cbMapping)
2852	continue;
2853
2854	char szDesc[80];
2855	RTStrPrintf(szDesc, sizeof(szDesc), "touch/flush/%zu", cbFlush);
2856	size_t const cFlushes = cbMapping / cbFlush;
2857	size_t const cbMappingUsed = cFlushes * cbFlush;
2858	size_t cbFlushed = 0;
2859	PROFILE_FN(fsPerfMSyncWorker(pbMapping, (iIteration * cbFlush) % cbMappingUsed, cbFlush, &cbFlushed),
2860	g_nsTestRun, szDesc);
2861
2862	/*
2863	* Check that all the changes made it thru to the file:
2864	*/
2865	if (!g_fIgnoreNoCache \|\| hFileNoCache != NIL_RTFILE)
2866	{
2867	size_t cbBuf = _2M;
2868	uint8_t pbBuf = (uint8_t )RTMemPageAlloc(cbBuf);
2869	if (!pbBuf)
2870	{
2871	cbBuf = _4K;
2872	pbBuf = (uint8_t *)RTMemPageAlloc(cbBuf);
2873	}
2874	RTTESTI_CHECK(pbBuf != NULL);
2875	if (pbBuf)
2876	{
2877	RTTESTI_CHECK_RC(RTFileSeek(hFileNoCache, 0, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS);
2878	size_t const cbToCheck = RT_MIN(cFlushes * cbFlush, cbFlushed);
2879	unsigned cErrors = 0;
2880	for (size_t offBuf = 0; cErrors < 32 && offBuf < cbToCheck; offBuf += cbBuf)
2881	{
2882	size_t cbToRead = RT_MIN(cbBuf, cbToCheck - offBuf);
2883	RTTESTI_CHECK_RC(RTFileRead(hFileNoCache, pbBuf, cbToRead, NULL), VINF_SUCCESS);
2884
2885	for (size_t offFlush = 0; offFlush < cbToRead; offFlush += PAGE_SIZE)
2886	if ((size_t volatile )&pbBuf[offFlush + 8] != cbFlush)
2887	{
2888	RTTestIFailed("Flush issue at offset #%zx: %#zx, expected %#zx (cbFlush=%#zx, %#RX64)",
2889	offBuf + offFlush + 8, (size_t volatile )&pbBuf[offFlush + 8],
2890	cbFlush, cbFlush, (uint64_t volatile )&pbBuf[offFlush]);
2891	if (++cErrors > 32)
2892	break;
2893	}
2894	}
2895	RTMemPageFree(pbBuf, cbBuf);
2896	}
2897	}
2898	}
2899
2900	# if 0 /* not needed, very very slow */
2901	/*
2902	* Restore the file to 0xf6 state for the next test.
2903	*/
2904	RTTestIPrintf(RTTESTLVL_ALWAYS, "Restoring content...\n");
2905	fsPerfFillWriteBuf(0, pbMapping, cbMapping, 0xf6);
2906	# ifdef RT_OS_WINDOWS
2907	RTTESTI_CHECK(FlushViewOfFile(pbMapping, cbMapping));
2908	# else
2909	RTTESTI_CHECK(msync(pbMapping, cbMapping, MS_SYNC) == 0);
2910	# endif
2911	RTTestIPrintf(RTTESTLVL_ALWAYS, "... done\n");
2912	# endif
2913	}
2914	}
2915
2916	/*
2917	* Obsever how regular writes affects a read-only or readwrite mapping.
2918	* These should ideally be immediately visible in the mapping, at least
2919	* when not performed thru an no-cache handle.
2920	*/
2921	if (enmState == kMMap_ReadOnly \|\| enmState == kMMap_ReadWrite)
2922	{
2923	size_t cbBuf = RT_MIN(_2M, cbMapping / 2);
2924	uint8_t pbBuf = (uint8_t )RTMemPageAlloc(cbBuf);
2925	if (!pbBuf)
2926	{
2927	cbBuf = _4K;
2928	pbBuf = (uint8_t *)RTMemPageAlloc(cbBuf);
2929	}
2930	RTTESTI_CHECK(pbBuf != NULL);
2931	if (pbBuf)
2932	{
2933	/* Do a number of random writes to the file (using hFile1).
2934	Immediately undoing them. */
2935	for (uint32_t i = 0; i < 128; i++)
2936	{
2937	/* Generate a randomly sized write at a random location, making
2938	sure it differs from whatever is there already before writing. */
2939	uint32_t const cbToWrite = RTRandU32Ex(1, (uint32_t)cbBuf);
2940	uint64_t const offToWrite = RTRandU64Ex(0, cbMapping - cbToWrite);
2941
2942	fsPerfFillWriteBuf(offToWrite, pbBuf, cbToWrite, 0xf8);
2943	pbBuf[0] = ~pbBuf[0];
2944	if (cbToWrite > 1)
2945	pbBuf[cbToWrite - 1] = ~pbBuf[cbToWrite - 1];
2946	RTTESTI_CHECK_RC(RTFileWriteAt(hFile1, offToWrite, pbBuf, cbToWrite, NULL), VINF_SUCCESS);
2947
2948	/* Check the mapping. */
2949	if (memcmp(&pbMapping[(size_t)offToWrite], pbBuf, cbToWrite) != 0)
2950	{
2951	RTTestIFailed("Write #%u @ %#RX64 LB %#x was not reflected in the mapping!\n", i, offToWrite, cbToWrite);
2952	}
2953
2954	/* Restore */
2955	fsPerfFillWriteBuf(offToWrite, pbBuf, cbToWrite, 0xf6);
2956	RTTESTI_CHECK_RC(RTFileWriteAt(hFile1, offToWrite, pbBuf, cbToWrite, NULL), VINF_SUCCESS);
2957	}
2958
2959	RTMemPageFree(pbBuf, cbBuf);
2960	}
2961	}
2962
2963	/*
2964	* Unmap it.
2965	*/
2966	# ifdef RT_OS_WINDOWS
2967	RTTESTI_CHECK(UnmapViewOfFile(pbMapping));
2968	RTTESTI_CHECK(CloseHandle(hSection));
2969	# else
2970	RTTESTI_CHECK(munmap(pbMapping, cbMapping) == 0);
2971	# endif
2972	}
2973
2974	/*
2975	* Memory mappings without open handles (pretty common).
2976	*/
2977	for (uint32_t i = 0; i < 32; i++)
2978	{
2979	/* Create a new file, 256 KB in size, and fill it with random bytes.
2980	Try uncached access if we can to force the page-in to do actual reads. */
2981	char szFile2[RTPATH_MAX + 32];
2982	memcpy(szFile2, g_szDir, g_cchDir);
2983	RTStrPrintf(&szFile2[g_cchDir], sizeof(szFile2) - g_cchDir, "mmap-%u.noh", i);
2984	RTFILE hFile2 = NIL_RTFILE;
2985	int rc = (i & 3) == 3 ? VERR_TRY_AGAIN
2986	: RTFileOpen(&hFile2, szFile2, RTFILE_O_READWRITE \| RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_NO_CACHE);
2987	if (RT_FAILURE(rc))
2988	{
2989	RTTESTI_CHECK_RC_BREAK(RTFileOpen(&hFile2, szFile2, RTFILE_O_READWRITE \| RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE),
2990	VINF_SUCCESS);
2991	}
2992
2993	static char s_abContent[256*1024];
2994	RTRandBytes(s_abContent, sizeof(s_abContent));
2995	RTTESTI_CHECK_RC(RTFileWrite(hFile2, s_abContent, sizeof(s_abContent), NULL), VINF_SUCCESS);
2996	RTTESTI_CHECK_RC(RTFileClose(hFile2), VINF_SUCCESS);
2997
2998	/* Reopen the file with normal caching. Every second time, we also
2999	does a read-only open of it to confuse matters. */
3000	RTFILE hFile3 = NIL_RTFILE;
3001	if ((i & 3) == 3)
3002	RTTESTI_CHECK_RC(RTFileOpen(&hFile3, szFile2, RTFILE_O_READ \| RTFILE_O_OPEN \| RTFILE_O_DENY_NONE), VINF_SUCCESS);
3003	hFile2 = NIL_RTFILE;
3004	RTTESTI_CHECK_RC_BREAK(RTFileOpen(&hFile2, szFile2, RTFILE_O_READWRITE \| RTFILE_O_OPEN \| RTFILE_O_DENY_NONE),
3005	VINF_SUCCESS);
3006	if ((i & 3) == 1)
3007	RTTESTI_CHECK_RC(RTFileOpen(&hFile3, szFile2, RTFILE_O_READ \| RTFILE_O_OPEN \| RTFILE_O_DENY_NONE), VINF_SUCCESS);
3008
3009	/* Memory map it read-write (no COW). */
3010	#ifdef RT_OS_WINDOWS
3011	HANDLE hSection = CreateFileMapping((HANDLE)RTFileToNative(hFile2), NULL, PAGE_READWRITE, 0, sizeof(s_abContent), NULL);
3012	RTTESTI_CHECK_MSG(hSection != NULL, ("last error %u\n", GetLastError));
3013	uint8_t pbMapping = (uint8_t )MapViewOfFile(hSection, FILE_MAP_WRITE, 0, 0, sizeof(s_abContent));
3014	RTTESTI_CHECK_MSG(pbMapping != NULL, ("last error %u\n", GetLastError));
3015	RTTESTI_CHECK_MSG(CloseHandle(hSection), ("last error %u\n", GetLastError));
3016	# else
3017	uint8_t pbMapping = (uint8_t )mmap(NULL, sizeof(s_abContent), PROT_READ \| PROT_WRITE, MAP_SHARED,
3018	(int)RTFileToNative(hFile2), 0);
3019	if ((void *)pbMapping == MAP_FAILED)
3020	pbMapping = NULL;
3021	RTTESTI_CHECK_MSG(pbMapping != NULL, ("errno=%s (%d)\n", strerror(errno), errno));
3022	# endif
3023
3024	/* Close the file handles. */
3025	if ((i & 7) == 7)
3026	{
3027	RTTESTI_CHECK_RC(RTFileClose(hFile3), VINF_SUCCESS);
3028	hFile3 = NIL_RTFILE;
3029	}
3030	RTTESTI_CHECK_RC(RTFileClose(hFile2), VINF_SUCCESS);
3031	if ((i & 7) == 5)
3032	{
3033	RTTESTI_CHECK_RC(RTFileClose(hFile3), VINF_SUCCESS);
3034	hFile3 = NIL_RTFILE;
3035	}
3036	if (pbMapping)
3037	{
3038	RTThreadSleep(2); /* fudge for cleanup/whatever */
3039
3040	/* Page in the mapping by comparing with the content we wrote above. */
3041	RTTESTI_CHECK(memcmp(pbMapping, s_abContent, sizeof(s_abContent)) == 0);
3042
3043	/* Now dirty everything by inverting everything. */
3044	size_t puCur = (size_t )pbMapping;
3045	size_t cLeft = sizeof(s_abContent) / sizeof(*puCur);
3046	while (cLeft-- > 0)
3047	{
3048	puCur = ~puCur;
3049	puCur++;
3050	}
3051
3052	/* Sync it all. */
3053	# ifdef RT_OS_WINDOWS
3054	RTTESTI_CHECK(FlushViewOfFile(pbMapping, sizeof(s_abContent)));
3055	# else
3056	RTTESTI_CHECK(msync(pbMapping, sizeof(s_abContent), MS_SYNC) == 0);
3057	# endif
3058
3059	/* Unmap it. */
3060	# ifdef RT_OS_WINDOWS
3061	RTTESTI_CHECK(UnmapViewOfFile(pbMapping));
3062	# else
3063	RTTESTI_CHECK(munmap(pbMapping, sizeof(s_abContent)) == 0);
3064	# endif
3065	}
3066
3067	if (hFile3 != NIL_RTFILE)
3068	RTTESTI_CHECK_RC(RTFileClose(hFile3), VINF_SUCCESS);
3069	RTTESTI_CHECK_RC(RTFileDelete(szFile2), VINF_SUCCESS);
3070	}
3071
3072
3073	#else
3074	RTTestSkipped(g_hTest, "not supported/implemented");
3075	RT_NOREF(hFile1, hFileNoCache, cbFile);
3076	#endif
3077	}
3078
3079
3080	/**
3081	* This does the read, write and seek tests.
3082	*/
3083	void fsPerfIo(void)
3084	{
3085	RTTestISub("I/O");
3086
3087	/*
3088	* Determin the size of the test file.
3089	*/
3090	g_szDir[g_cchDir] = '\0';
3091	RTFOFF cbFree = 0;
3092	RTTESTI_CHECK_RC_RETV(RTFsQuerySizes(g_szDir, NULL, &cbFree, NULL, NULL), VINF_SUCCESS);
3093	uint64_t cbFile = g_cbIoFile;
3094	if (cbFile + _16M < (uint64_t)cbFree)
3095	cbFile = RT_ALIGN_64(cbFile, _64K);
3096	else if (cbFree < _32M)
3097	{
3098	RTTestSkipped(g_hTest, "Insufficent free space: %'RU64 bytes, requires >= 32MB", cbFree);
3099	return;
3100	}
3101	else
3102	{
3103	cbFile = cbFree - (cbFree > _128M ? _64M : _16M);
3104	cbFile = RT_ALIGN_64(cbFile, _64K);
3105	RTTestIPrintf(RTTESTLVL_ALWAYS, "Adjusted file size to %'RU64 bytes, due to %'RU64 bytes free.\n", cbFile, cbFree);
3106	}
3107	if (cbFile < _64K)
3108	{
3109	RTTestSkipped(g_hTest, "Specified test file size too small: %'RU64 bytes, requires >= 64KB", cbFile);
3110	return;
3111	}
3112
3113	/*
3114	* Create a cbFile sized test file.
3115	*/
3116	RTFILE hFile1;
3117	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFile1, InDir(RT_STR_TUPLE("file21")),
3118	RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_READWRITE), VINF_SUCCESS);
3119	RTFILE hFileNoCache;
3120	if (!g_fIgnoreNoCache)
3121	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFileNoCache, g_szDir,
3122	RTFILE_O_OPEN \| RTFILE_O_DENY_NONE \| RTFILE_O_READWRITE \| RTFILE_O_NO_CACHE),
3123	VINF_SUCCESS);
3124	else
3125	{
3126	int rc = RTFileOpen(&hFileNoCache, g_szDir, RTFILE_O_OPEN \| RTFILE_O_DENY_NONE \| RTFILE_O_READWRITE \| RTFILE_O_NO_CACHE);
3127	if (RT_FAILURE(rc))
3128	{
3129	RTTestIPrintf(RTTESTLVL_ALWAYS, "Unable to open I/O file with non-cache flag (%Rrc), skipping related tests.\n", rc);
3130	hFileNoCache = NIL_RTFILE;
3131	}
3132	}
3133	RTFILE hFileWriteThru;
3134	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFileWriteThru, g_szDir,
3135	RTFILE_O_OPEN \| RTFILE_O_DENY_NONE \| RTFILE_O_READWRITE \| RTFILE_O_WRITE_THROUGH),
3136	VINF_SUCCESS);
3137
3138	uint8_t *pbFree = NULL;
3139	int rc = fsPerfIoPrepFile(hFile1, cbFile, &pbFree);
3140	RTMemFree(pbFree);
3141	if (RT_SUCCESS(rc))
3142	{
3143	/*
3144	* Do the testing & profiling.
3145	*/
3146	if (g_fSeek)
3147	fsPerfIoSeek(hFile1, cbFile);
3148
3149	if (g_fReadTests)
3150	fsPerfRead(hFile1, hFileNoCache, cbFile);
3151	if (g_fReadPerf)
3152	for (unsigned i = 0; i < g_cIoBlocks; i++)
3153	fsPerfIoReadBlockSize(hFile1, cbFile, g_acbIoBlocks[i]);
3154
3155	if (g_fMMap)
3156	fsPerfMMap(hFile1, hFileNoCache, cbFile);
3157
3158	/* This is destructive to the file content. */
3159	if (g_fWriteTests)
3160	fsPerfWrite(hFile1, hFileNoCache, hFileWriteThru, cbFile);
3161	if (g_fWritePerf)
3162	for (unsigned i = 0; i < g_cIoBlocks; i++)
3163	fsPerfIoWriteBlockSize(hFile1, cbFile, g_acbIoBlocks[i]);
3164
3165	if (g_fFSync)
3166	fsPerfFSync(hFile1, cbFile);
3167	}
3168
3169	RTTESTI_CHECK_RC(RTFileSetSize(hFile1, 0), VINF_SUCCESS);
3170	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
3171	if (hFileNoCache != NIL_RTFILE \|\| !g_fIgnoreNoCache)
3172	RTTESTI_CHECK_RC(RTFileClose(hFileNoCache), VINF_SUCCESS);
3173	RTTESTI_CHECK_RC(RTFileClose(hFileWriteThru), VINF_SUCCESS);
3174	RTTESTI_CHECK_RC(RTFileDelete(g_szDir), VINF_SUCCESS);
3175	}
3176
3177
3178	DECL_FORCE_INLINE(int) fsPerfCopyWorker1(const char pszSrc, const char pszDst)
3179	{
3180	RTFileDelete(pszDst);
3181	return RTFileCopy(pszSrc, pszDst);
3182	}
3183
3184
3185	static void fsPerfCopy(void)
3186	{
3187	RTTestISub("copy");
3188
3189	/*
3190	* Non-existing files.
3191	*/
3192	RTTESTI_CHECK_RC(RTFileCopy(InEmptyDir(RT_STR_TUPLE("no-such-file")),
3193	InDir2(RT_STR_TUPLE("whatever"))), VERR_FILE_NOT_FOUND);
3194	RTTESTI_CHECK_RC(RTFileCopy(InEmptyDir(RT_STR_TUPLE("no-such-dir" RTPATH_SLASH_STR "no-such-file")),
3195	InDir2(RT_STR_TUPLE("no-such-file"))), FSPERF_VERR_PATH_NOT_FOUND);
3196	RTTESTI_CHECK_RC(RTFileCopy(InDir(RT_STR_TUPLE("known-file" RTPATH_SLASH_STR "no-such-file")),
3197	InDir2(RT_STR_TUPLE("whatever"))), VERR_PATH_NOT_FOUND);
3198
3199	RTTESTI_CHECK_RC(RTFileCopy(InDir(RT_STR_TUPLE("known-file")),
3200	InEmptyDir(RT_STR_TUPLE("no-such-dir" RTPATH_SLASH_STR "no-such-file"))), FSPERF_VERR_PATH_NOT_FOUND);
3201	RTTESTI_CHECK_RC(RTFileCopy(InDir(RT_STR_TUPLE("known-file")),
3202	InDir2(RT_STR_TUPLE("known-file" RTPATH_SLASH_STR "no-such-file"))), VERR_PATH_NOT_FOUND);
3203
3204	/*
3205	* Determin the size of the test file.
3206	* We want to be able to make 1 copy of it.
3207	*/
3208	g_szDir[g_cchDir] = '\0';
3209	RTFOFF cbFree = 0;
3210	RTTESTI_CHECK_RC_RETV(RTFsQuerySizes(g_szDir, NULL, &cbFree, NULL, NULL), VINF_SUCCESS);
3211	uint64_t cbFile = g_cbIoFile;
3212	if (cbFile + _16M < (uint64_t)cbFree)
3213	cbFile = RT_ALIGN_64(cbFile, _64K);
3214	else if (cbFree < _32M)
3215	{
3216	RTTestSkipped(g_hTest, "Insufficent free space: %'RU64 bytes, requires >= 32MB", cbFree);
3217	return;
3218	}
3219	else
3220	{
3221	cbFile = cbFree - (cbFree > _128M ? _64M : _16M);
3222	cbFile = RT_ALIGN_64(cbFile, _64K);
3223	RTTestIPrintf(RTTESTLVL_ALWAYS, "Adjusted file size to %'RU64 bytes, due to %'RU64 bytes free.\n", cbFile, cbFree);
3224	}
3225	if (cbFile < _512K * 2)
3226	{
3227	RTTestSkipped(g_hTest, "Specified test file size too small: %'RU64 bytes, requires >= 1MB", cbFile);
3228	return;
3229	}
3230	cbFile /= 2;
3231
3232	/*
3233	* Create a cbFile sized test file.
3234	*/
3235	RTFILE hFile1;
3236	RTTESTI_CHECK_RC_RETV(RTFileOpen(&hFile1, InDir(RT_STR_TUPLE("file22")),
3237	RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_READWRITE), VINF_SUCCESS);
3238	uint8_t *pbFree = NULL;
3239	int rc = fsPerfIoPrepFile(hFile1, cbFile, &pbFree);
3240	RTMemFree(pbFree);
3241	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
3242	if (RT_SUCCESS(rc))
3243	{
3244	/*
3245	* Make copies.
3246	*/
3247	/* plain */
3248	RTFileDelete(InDir2(RT_STR_TUPLE("file23")));
3249	RTTESTI_CHECK_RC(RTFileCopy(g_szDir, g_szDir2), VINF_SUCCESS);
3250	RTTESTI_CHECK_RC(RTFileCopy(g_szDir, g_szDir2), VERR_ALREADY_EXISTS);
3251	RTTESTI_CHECK_RC(RTFileCompare(g_szDir, g_szDir2), VINF_SUCCESS);
3252
3253	/* by handle */
3254	hFile1 = NIL_RTFILE;
3255	RTTESTI_CHECK_RC(RTFileOpen(&hFile1, g_szDir, RTFILE_O_OPEN \| RTFILE_O_DENY_NONE \| RTFILE_O_READ), VINF_SUCCESS);
3256	RTFILE hFile2 = NIL_RTFILE;
3257	RTTESTI_CHECK_RC(RTFileOpen(&hFile2, g_szDir2, RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
3258	RTTESTI_CHECK_RC(RTFileCopyByHandles(hFile1, hFile2), VINF_SUCCESS);
3259	RTTESTI_CHECK_RC(RTFileClose(hFile2), VINF_SUCCESS);
3260	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
3261	RTTESTI_CHECK_RC(RTFileCompare(g_szDir, g_szDir2), VINF_SUCCESS);
3262
3263	/* copy part */
3264	hFile1 = NIL_RTFILE;
3265	RTTESTI_CHECK_RC(RTFileOpen(&hFile1, g_szDir, RTFILE_O_OPEN \| RTFILE_O_DENY_NONE \| RTFILE_O_READ), VINF_SUCCESS);
3266	hFile2 = NIL_RTFILE;
3267	RTTESTI_CHECK_RC(RTFileOpen(&hFile2, g_szDir2, RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
3268	RTTESTI_CHECK_RC(RTFileCopyPart(hFile1, 0, hFile2, 0, cbFile / 2, 0, NULL), VINF_SUCCESS);
3269	RTTESTI_CHECK_RC(RTFileCopyPart(hFile1, cbFile / 2, hFile2, cbFile / 2, cbFile - cbFile / 2, 0, NULL), VINF_SUCCESS);
3270	RTTESTI_CHECK_RC(RTFileClose(hFile2), VINF_SUCCESS);
3271	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
3272	RTTESTI_CHECK_RC(RTFileCompare(g_szDir, g_szDir2), VINF_SUCCESS);
3273
3274	/*
3275	* Do some benchmarking.
3276	*/
3277	#define PROFILE_COPY_FN(a_szOperation, a_fnCall) \
3278	do \
3279	{ \
3280	/* Estimate how many iterations we need to fill up the given timeslot: */ \
3281	fsPerfYield(); \
3282	uint64_t nsStart = RTTimeNanoTS(); \
3283	uint64_t ns; \
3284	do \
3285	ns = RTTimeNanoTS(); \
3286	while (ns == nsStart); \
3287	nsStart = ns; \
3288	\
3289	uint64_t iIteration = 0; \
3290	do \
3291	{ \
3292	RTTESTI_CHECK_RC(a_fnCall, VINF_SUCCESS); \
3293	iIteration++; \
3294	ns = RTTimeNanoTS() - nsStart; \
3295	} while (ns < RT_NS_10MS); \
3296	ns /= iIteration; \
3297	if (ns > g_nsPerNanoTSCall + 32) \
3298	ns -= g_nsPerNanoTSCall; \
3299	uint64_t cIterations = g_nsTestRun / ns; \
3300	if (cIterations < 2) \
3301	cIterations = 2; \
3302	else if (cIterations & 1) \
3303	cIterations++; \
3304	\
3305	/* Do the actual profiling: */ \
3306	iIteration = 0; \
3307	fsPerfYield(); \
3308	nsStart = RTTimeNanoTS(); \
3309	for (uint32_t iAdjust = 0; iAdjust < 4; iAdjust++) \
3310	{ \
3311	for (; iIteration < cIterations; iIteration++)\
3312	RTTESTI_CHECK_RC(a_fnCall, VINF_SUCCESS); \
3313	ns = RTTimeNanoTS() - nsStart;\
3314	if (ns >= g_nsTestRun - (g_nsTestRun / 10)) \
3315	break; \
3316	cIterations += cIterations / 4; \
3317	if (cIterations & 1) \
3318	cIterations++; \
3319	nsStart += g_nsPerNanoTSCall; \
3320	} \
3321	RTTestIValueF(ns / iIteration, \
3322	RTTESTUNIT_NS_PER_OCCURRENCE, a_szOperation " latency"); \
3323	RTTestIValueF((uint64_t)((uint64_t)iIteration * cbFile / ((double)ns / RT_NS_1SEC)), \
3324	RTTESTUNIT_BYTES_PER_SEC, a_szOperation " throughput"); \
3325	RTTestIValueF((uint64_t)iIteration * cbFile, \
3326	RTTESTUNIT_BYTES, a_szOperation " bytes"); \
3327	RTTestIValueF(iIteration, \
3328	RTTESTUNIT_OCCURRENCES, a_szOperation " iterations"); \
3329	if (g_fShowDuration) \
3330	RTTestIValueF(ns, RTTESTUNIT_NS, a_szOperation " duration"); \
3331	} while (0)
3332
3333	PROFILE_COPY_FN("RTFileCopy/Replace", fsPerfCopyWorker1(g_szDir, g_szDir2));
3334
3335	hFile1 = NIL_RTFILE;
3336	RTTESTI_CHECK_RC(RTFileOpen(&hFile1, g_szDir, RTFILE_O_OPEN \| RTFILE_O_DENY_NONE \| RTFILE_O_READ), VINF_SUCCESS);
3337	RTFileDelete(g_szDir2);
3338	hFile2 = NIL_RTFILE;
3339	RTTESTI_CHECK_RC(RTFileOpen(&hFile2, g_szDir2, RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_NONE \| RTFILE_O_WRITE), VINF_SUCCESS);
3340	PROFILE_COPY_FN("RTFileCopyByHandles/Overwrite", RTFileCopyByHandles(hFile1, hFile2));
3341	RTTESTI_CHECK_RC(RTFileClose(hFile2), VINF_SUCCESS);
3342	RTTESTI_CHECK_RC(RTFileClose(hFile1), VINF_SUCCESS);
3343
3344	/* We could benchmark RTFileCopyPart with various block sizes and whatnot...
3345	But it's currently well covered by the two previous operations. */
3346	}
3347
3348	/*
3349	* Clean up.
3350	*/
3351	RTFileDelete(InDir2(RT_STR_TUPLE("file22c1")));
3352	RTFileDelete(InDir2(RT_STR_TUPLE("file22c2")));
3353	RTFileDelete(InDir2(RT_STR_TUPLE("file22c3")));
3354	RTTESTI_CHECK_RC(RTFileDelete(g_szDir), VINF_SUCCESS);
3355	}
3356
3357
3358	/**
3359	* Display the usage to @a pStrm.
3360	*/
3361	static void Usage(PRTSTREAM pStrm)
3362	{
3363	char szExec[RTPATH_MAX];
3364	RTStrmPrintf(pStrm, "usage: %s <-d <testdir>> [options]\n",
3365	RTPathFilename(RTProcGetExecutablePath(szExec, sizeof(szExec))));
3366	RTStrmPrintf(pStrm, "\n");
3367	RTStrmPrintf(pStrm, "options: \n");
3368
3369	for (unsigned i = 0; i < RT_ELEMENTS(g_aCmdOptions); i++)
3370	{
3371	char szHelp[80];
3372	const char *pszHelp;
3373	switch (g_aCmdOptions[i].iShort)
3374	{
3375	case 'd': pszHelp = "The directory to use for testing. default: CWD/fstestdir"; break;
3376	case 'e': pszHelp = "Enables all tests. default: -e"; break;
3377	case 'z': pszHelp = "Disables all tests. default: -e"; break;
3378	case 's': pszHelp = "Set benchmark duration in seconds. default: 10 sec"; break;
3379	case 'm': pszHelp = "Set benchmark duration in milliseconds. default: 10000 ms"; break;
3380	case 'v': pszHelp = "More verbose execution."; break;
3381	case 'q': pszHelp = "Quiet execution."; break;
3382	case 'h': pszHelp = "Displays this help and exit"; break;
3383	case 'V': pszHelp = "Displays the program revision"; break;
3384	case kCmdOpt_ShowDuration: pszHelp = "Show duration of profile runs. default: --no-show-duration"; break;
3385	case kCmdOpt_NoShowDuration: pszHelp = "Hide duration of profile runs. default: --no-show-duration"; break;
3386	case kCmdOpt_ShowIterations: pszHelp = "Show iteration count for profile runs. default: --no-show-iterations"; break;
3387	case kCmdOpt_NoShowIterations: pszHelp = "Hide iteration count for profile runs. default: --no-show-iterations"; break;
3388	case kCmdOpt_ManyFiles: pszHelp = "Count of files in big test dir. default: --many-files 10000"; break;
3389	case kCmdOpt_NoManyFiles: pszHelp = "Skip big test dir with many files. default: --many-files 10000"; break;
3390	case kCmdOpt_ManyTreeFilesPerDir: pszHelp = "Count of files per directory in test tree. default: 640"; break;
3391	case kCmdOpt_ManyTreeSubdirsPerDir: pszHelp = "Count of subdirs per directory in test tree. default: 16"; break;
3392	case kCmdOpt_ManyTreeDepth: pszHelp = "Depth of test tree (not counting root). default: 1"; break;
3393	case kCmdOpt_IgnoreNoCache: pszHelp = "Ignore error wrt no-cache handle. default: --no-ignore-no-cache"; break;
3394	case kCmdOpt_NoIgnoreNoCache: pszHelp = "Do not ignore error wrt no-cache handle. default: --no-ignore-no-cache"; break;
3395	case kCmdOpt_IoFileSize: pszHelp = "Size of file used for I/O tests. default: 512 MB"; break;
3396	case kCmdOpt_SetBlockSize: pszHelp = "Sets single I/O block size (in bytes)."; break;
3397	case kCmdOpt_AddBlockSize: pszHelp = "Adds an I/O block size (in bytes)."; break;
3398	default:
3399	if (g_aCmdOptions[i].iShort >= kCmdOpt_First)
3400	{
3401	if (RTStrStartsWith(g_aCmdOptions[i].pszLong, "--no-"))
3402	RTStrPrintf(szHelp, sizeof(szHelp), "Disables the '%s' test.", g_aCmdOptions[i].pszLong + 5);
3403	else
3404	RTStrPrintf(szHelp, sizeof(szHelp), "Enables the '%s' test.", g_aCmdOptions[i].pszLong + 2);
3405	pszHelp = szHelp;
3406	}
3407	else
3408	pszHelp = "Option undocumented";
3409	break;
3410	}
3411	if ((unsigned)g_aCmdOptions[i].iShort < 127U)
3412	{
3413	char szOpt[64];
3414	RTStrPrintf(szOpt, sizeof(szOpt), "%s, -%c", g_aCmdOptions[i].pszLong, g_aCmdOptions[i].iShort);
3415	RTStrmPrintf(pStrm, " %-19s %s\n", szOpt, pszHelp);
3416	}
3417	else
3418	RTStrmPrintf(pStrm, " %-19s %s\n", g_aCmdOptions[i].pszLong, pszHelp);
3419	}
3420	}
3421
3422
3423	static uint32_t fsPerfCalcManyTreeFiles(void)
3424	{
3425	uint32_t cDirs = 1;
3426	for (uint32_t i = 0, cDirsAtLevel = 1; i < g_cManyTreeDepth; i++)
3427	{
3428	cDirs += cDirsAtLevel * g_cManyTreeSubdirsPerDir;
3429	cDirsAtLevel *= g_cManyTreeSubdirsPerDir;
3430	}
3431	return g_cManyTreeFilesPerDir * cDirs;
3432	}
3433
3434
3435	int main(int argc, char *argv[])
3436	{
3437	/*
3438	* Init IPRT and globals.
3439	*/
3440	int rc = RTTestInitAndCreate("FsPerf", &g_hTest);
3441	if (rc)
3442	return rc;
3443	RTListInit(&g_ManyTreeHead);
3444
3445	/*
3446	* Default values.
3447	*/
3448	rc = RTPathGetCurrent(g_szDir, sizeof(g_szDir) / 2);
3449	if (RT_SUCCESS(rc))
3450	rc = RTPathAppend(g_szDir, sizeof(g_szDir) / 2, "fstestdir-");
3451	if (RT_SUCCESS(rc))
3452	{
3453	g_cchDir = strlen(g_szDir);
3454	g_cchDir += RTStrPrintf(&g_szDir[g_cchDir], sizeof(g_szDir) - g_cchDir, "%u" RTPATH_SLASH_STR, RTProcSelf());
3455	}
3456	else
3457	{
3458	RTTestFailed(g_hTest, "RTPathGetCurrent (or RTPathAppend) failed: %Rrc\n", rc);
3459	return RTTestSummaryAndDestroy(g_hTest);
3460	}
3461
3462	RTGETOPTUNION ValueUnion;
3463	RTGETOPTSTATE GetState;
3464	RTGetOptInit(&GetState, argc, argv, g_aCmdOptions, RT_ELEMENTS(g_aCmdOptions), 1, 0 /* fFlags */);
3465	while ((rc = RTGetOpt(&GetState, &ValueUnion)) != 0)
3466	{
3467	switch (rc)
3468	{
3469	case 'd':
3470	rc = RTPathAbs(ValueUnion.psz, g_szDir, sizeof(g_szDir) / 2);
3471	if (RT_SUCCESS(rc))
3472	{
3473	RTPathEnsureTrailingSeparator(g_szDir, sizeof(g_szDir));
3474	g_cchDir = strlen(g_szDir);
3475	break;
3476	}
3477	RTTestFailed(g_hTest, "RTPathAbs(%s) failed: %Rrc\n", ValueUnion.psz, rc);
3478	return RTTestSummaryAndDestroy(g_hTest);
3479
3480	case 's':
3481	if (ValueUnion.u32 == 0)
3482	g_nsTestRun = RT_NS_1SEC_64 * 10;
3483	else
3484	g_nsTestRun = ValueUnion.u32 * RT_NS_1SEC_64;
3485	break;
3486
3487	case 'm':
3488	if (ValueUnion.u64 == 0)
3489	g_nsTestRun = RT_NS_1SEC_64 * 10;
3490	else
3491	g_nsTestRun = ValueUnion.u64 * RT_NS_1MS;
3492	break;
3493
3494	case 'e':
3495	g_fManyFiles = true;
3496	g_fOpen = true;
3497	g_fFStat = true;
3498	g_fFChMod = true;
3499	g_fFUtimes = true;
3500	g_fStat = true;
3501	g_fChMod = true;
3502	g_fUtimes = true;
3503	g_fRename = true;
3504	g_fDirOpen = true;
3505	g_fDirEnum = true;
3506	g_fMkRmDir = true;
3507	g_fStatVfs = true;
3508	g_fRm = true;
3509	g_fChSize = true;
3510	g_fReadTests = true;
3511	g_fReadPerf = true;
3512	g_fWriteTests= true;
3513	g_fWritePerf = true;
3514	g_fSeek = true;
3515	g_fFSync = true;
3516	g_fMMap = true;
3517	g_fCopy = true;
3518	break;
3519
3520	case 'z':
3521	g_fManyFiles = false;
3522	g_fOpen = false;
3523	g_fFStat = false;
3524	g_fFChMod = false;
3525	g_fFUtimes = false;
3526	g_fStat = false;
3527	g_fChMod = false;
3528	g_fUtimes = false;
3529	g_fRename = false;
3530	g_fDirOpen = false;
3531	g_fDirEnum = false;
3532	g_fMkRmDir = false;
3533	g_fStatVfs = false;
3534	g_fRm = false;
3535	g_fChSize = false;
3536	g_fReadTests = false;
3537	g_fReadPerf = false;
3538	g_fWriteTests= false;
3539	g_fWritePerf = false;
3540	g_fSeek = false;
3541	g_fFSync = false;
3542	g_fMMap = false;
3543	g_fCopy = false;
3544	break;
3545
3546	#define CASE_OPT(a_Stem) \
3547	case RT_CONCAT(kCmdOpt_,a_Stem): RT_CONCAT(g_f,a_Stem) = true; break; \
3548	case RT_CONCAT(kCmdOpt_No,a_Stem): RT_CONCAT(g_f,a_Stem) = false; break
3549	CASE_OPT(Open);
3550	CASE_OPT(FStat);
3551	CASE_OPT(FChMod);
3552	CASE_OPT(FUtimes);
3553	CASE_OPT(Stat);
3554	CASE_OPT(ChMod);
3555	CASE_OPT(Utimes);
3556	CASE_OPT(Rename);
3557	CASE_OPT(DirOpen);
3558	CASE_OPT(DirEnum);
3559	CASE_OPT(MkRmDir);
3560	CASE_OPT(StatVfs);
3561	CASE_OPT(Rm);
3562	CASE_OPT(ChSize);
3563	CASE_OPT(ReadTests);
3564	CASE_OPT(ReadPerf);
3565	CASE_OPT(WriteTests);
3566	CASE_OPT(WritePerf);
3567	CASE_OPT(Seek);
3568	CASE_OPT(FSync);
3569	CASE_OPT(MMap);
3570	CASE_OPT(IgnoreNoCache);
3571	CASE_OPT(Copy);
3572
3573	CASE_OPT(ShowDuration);
3574	CASE_OPT(ShowIterations);
3575	#undef CASE_OPT
3576
3577	case kCmdOpt_ManyFiles:
3578	g_fManyFiles = ValueUnion.u32 > 0;
3579	g_cManyFiles = ValueUnion.u32;
3580	break;
3581
3582	case kCmdOpt_NoManyFiles:
3583	g_fManyFiles = false;
3584	break;
3585
3586	case kCmdOpt_ManyTreeFilesPerDir:
3587	if (ValueUnion.u32 > 0 && ValueUnion.u32 <= _64M)
3588	{
3589	g_cManyTreeFilesPerDir = ValueUnion.u32;
3590	g_cManyTreeFiles = fsPerfCalcManyTreeFiles();
3591	break;
3592	}
3593	RTTestFailed(g_hTest, "Out of range --files-per-dir value: %u (%#x)\n", ValueUnion.u32, ValueUnion.u32);
3594	return RTTestSummaryAndDestroy(g_hTest);
3595
3596	case kCmdOpt_ManyTreeSubdirsPerDir:
3597	if (ValueUnion.u32 > 0 && ValueUnion.u32 <= 1024)
3598	{
3599	g_cManyTreeSubdirsPerDir = ValueUnion.u32;
3600	g_cManyTreeFiles = fsPerfCalcManyTreeFiles();
3601	break;
3602	}
3603	RTTestFailed(g_hTest, "Out of range --subdirs-per-dir value: %u (%#x)\n", ValueUnion.u32, ValueUnion.u32);
3604	return RTTestSummaryAndDestroy(g_hTest);
3605
3606	case kCmdOpt_ManyTreeDepth:
3607	if (ValueUnion.u32 <= 8)
3608	{
3609	g_cManyTreeDepth = ValueUnion.u32;
3610	g_cManyTreeFiles = fsPerfCalcManyTreeFiles();
3611	break;
3612	}
3613	RTTestFailed(g_hTest, "Out of range --tree-depth value: %u (%#x)\n", ValueUnion.u32, ValueUnion.u32);
3614	return RTTestSummaryAndDestroy(g_hTest);
3615
3616	case kCmdOpt_IoFileSize:
3617	if (ValueUnion.u64 == 0)
3618	g_cbIoFile = _512M;
3619	else
3620	g_cbIoFile = ValueUnion.u64;
3621	break;
3622
3623	case kCmdOpt_SetBlockSize:
3624	if (ValueUnion.u32 > 0)
3625	{
3626	g_cIoBlocks = 1;
3627	g_acbIoBlocks[0] = ValueUnion.u32;
3628	}
3629	else
3630	{
3631	RTTestFailed(g_hTest, "Invalid I/O block size: %u (%#x)\n", ValueUnion.u32, ValueUnion.u32);
3632	return RTTestSummaryAndDestroy(g_hTest);
3633	}
3634	break;
3635
3636	case kCmdOpt_AddBlockSize:
3637	if (g_cIoBlocks >= RT_ELEMENTS(g_acbIoBlocks))
3638	RTTestFailed(g_hTest, "Too many I/O block sizes: max %u\n", RT_ELEMENTS(g_acbIoBlocks));
3639	else if (ValueUnion.u32 == 0)
3640	RTTestFailed(g_hTest, "Invalid I/O block size: %u (%#x)\n", ValueUnion.u32, ValueUnion.u32);
3641	else
3642	{
3643	g_acbIoBlocks[g_cIoBlocks++] = ValueUnion.u32;
3644	break;
3645	}
3646	return RTTestSummaryAndDestroy(g_hTest);
3647
3648	case 'q':
3649	g_uVerbosity = 0;
3650	break;
3651
3652	case 'v':
3653	g_uVerbosity++;
3654	break;
3655
3656	case 'h':
3657	Usage(g_pStdOut);
3658	return RTEXITCODE_SUCCESS;
3659
3660	case 'V':
3661	{
3662	char szRev[] = "$Revision: 77831 $";
3663	szRev[RT_ELEMENTS(szRev) - 2] = '\0';
3664	RTPrintf(RTStrStrip(strchr(szRev, ':') + 1));
3665	return RTEXITCODE_SUCCESS;
3666	}
3667
3668	default:
3669	return RTGetOptPrintError(rc, &ValueUnion);
3670	}
3671	}
3672
3673	/*
3674	* Create the test directory with an 'empty' subdirectory under it,
3675	* execute the tests, and remove directory when done.
3676	*/
3677	RTTestBanner(g_hTest);
3678	if (!RTPathExists(g_szDir))
3679	{
3680	/* The base dir: */
3681	rc = RTDirCreate(g_szDir, 0755,
3682	RTDIRCREATE_FLAGS_NOT_CONTENT_INDEXED_DONT_SET \| RTDIRCREATE_FLAGS_NOT_CONTENT_INDEXED_NOT_CRITICAL);
3683	if (RT_SUCCESS(rc))
3684	{
3685	RTTestIPrintf(RTTESTLVL_ALWAYS, "Test dir: %s\n", g_szDir);
3686	rc = fsPrepTestArea();
3687	if (RT_SUCCESS(rc))
3688	{
3689	/* Profile RTTimeNanoTS(). */
3690	fsPerfNanoTS();
3691
3692	/* Do tests: */
3693	if (g_fManyFiles)
3694	fsPerfManyFiles();
3695	if (g_fOpen)
3696	fsPerfOpen();
3697	if (g_fFStat)
3698	fsPerfFStat();
3699	if (g_fFChMod)
3700	fsPerfFChMod();
3701	if (g_fFUtimes)
3702	fsPerfFUtimes();
3703	if (g_fStat)
3704	fsPerfStat();
3705	if (g_fChMod)
3706	fsPerfChmod();
3707	if (g_fUtimes)
3708	fsPerfUtimes();
3709	if (g_fRename)
3710	fsPerfRename();
3711	if (g_fDirOpen)
3712	vsPerfDirOpen();
3713	if (g_fDirEnum)
3714	vsPerfDirEnum();
3715	if (g_fMkRmDir)
3716	fsPerfMkRmDir();
3717	if (g_fStatVfs)
3718	fsPerfStatVfs();
3719	if (g_fRm \|\| g_fManyFiles)
3720	fsPerfRm(); /* deletes manyfiles and manytree */
3721	if (g_fChSize)
3722	fsPerfChSize();
3723	if (g_fReadPerf \|\| g_fReadTests \|\| g_fWritePerf \|\| g_fWriteTests \|\| g_fSeek \|\| g_fFSync \|\| g_fMMap)
3724	fsPerfIo();
3725	if (g_fCopy)
3726	fsPerfCopy();
3727	}
3728
3729	/* Cleanup: */
3730	g_szDir[g_cchDir] = '\0';
3731	rc = RTDirRemoveRecursive(g_szDir, RTDIRRMREC_F_CONTENT_AND_DIR);
3732	if (RT_FAILURE(rc))
3733	RTTestFailed(g_hTest, "RTDirRemoveRecursive(%s,) -> %Rrc\n", g_szDir, rc);
3734	}
3735	else
3736	RTTestFailed(g_hTest, "RTDirCreate(%s) -> %Rrc\n", g_szDir, rc);
3737	}
3738	else
3739	RTTestFailed(g_hTest, "Test directory already exists: %s\n", g_szDir);
3740
3741	return RTTestSummaryAndDestroy(g_hTest);
3742	}
3743

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source: vbox/trunk/src/VBox/ValidationKit/utils/fs/FsPerf.cpp@ 77831

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