tstCompressionBenchmark.cpp@ 29287

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1	/* $Id: tstCompressionBenchmark.cpp 28800 2010-04-27 08:22:32Z vboxsync $ */
2	/** @file
3	* Compression Benchmark for SSM and PGM.
4	*/
5
6	/*
7	* Copyright (C) 2009 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
18
19	/*******************************************************************************
20	* Header Files *
21	*******************************************************************************/
22	#include <iprt/asm.h>
23	#include <iprt/assert.h>
24	#include <iprt/buildconfig.h>
25	#include <iprt/crc.h>
26	#include <iprt/ctype.h>
27	#include <iprt/err.h>
28	#include <iprt/file.h>
29	#include <iprt/getopt.h>
30	#include <iprt/initterm.h>
31	#include <iprt/md5.h>
32	#include <iprt/sha.h>
33	#include <iprt/mem.h>
34	#include <iprt/param.h>
35	#include <iprt/stream.h>
36	#include <iprt/string.h>
37	#include <iprt/time.h>
38	#include <iprt/zip.h>
39
40
41	/*******************************************************************************
42	* Global Variables *
43	*******************************************************************************/
44	static size_t g_cPages = 20*_1M / PAGE_SIZE;
45	static size_t g_cbPages;
46	static uint8_t *g_pabSrc;
47
48	/** Buffer for the decompressed data (g_cbPages). */
49	static uint8_t *g_pabDecompr;
50
51	/** Buffer for the compressed data (g_cbComprAlloc). */
52	static uint8_t *g_pabCompr;
53	/** The current size of the compressed data, ComprOutCallback */
54	static size_t g_cbCompr;
55	/** The current offset into the compressed data, DecomprInCallback. */
56	static size_t g_offComprIn;
57	/** The amount of space allocated for compressed data. */
58	static size_t g_cbComprAlloc;
59
60
61	/**
62	* Store compressed data in the g_pabCompr buffer.
63	*/
64	static DECLCALLBACK(int) ComprOutCallback(void pvUser, const void pvBuf, size_t cbBuf)
65	{
66	AssertReturn(g_cbCompr + cbBuf <= g_cbComprAlloc, VERR_BUFFER_OVERFLOW);
67	memcpy(&g_pabCompr[g_cbCompr], pvBuf, cbBuf);
68	g_cbCompr += cbBuf;
69	return VINF_SUCCESS;
70	}
71
72	/**
73	* Read compressed data from g_pabComrp.
74	*/
75	static DECLCALLBACK(int) DecomprInCallback(void pvUser, void pvBuf, size_t cbBuf, size_t *pcbBuf)
76	{
77	size_t cb = RT_MIN(cbBuf, g_cbCompr - g_offComprIn);
78	if (pcbBuf)
79	*pcbBuf = cb;
80	// AssertReturn(cb > 0, VERR_EOF);
81	memcpy(pvBuf, &g_pabCompr[g_offComprIn], cb);
82	g_offComprIn += cb;
83	return VINF_SUCCESS;
84	}
85
86
87	/**
88	* Benchmark RTCrc routines potentially relevant for SSM or PGM - All in one go.
89	*
90	* @param pabSrc Pointer to the test data.
91	* @param cbSrc The size of the test data.
92	*/
93	static void tstBenchmarkCRCsAllInOne(uint8_t const *pabSrc, size_t cbSrc)
94	{
95	RTPrintf("Algorithm Speed Time Digest\n"
96	"------------------------------------------------------------------------------\n");
97
98	uint64_t NanoTS = RTTimeNanoTS();
99	uint32_t u32Crc = RTCrc32(pabSrc, cbSrc);
100	NanoTS = RTTimeNanoTS() - NanoTS;
101	unsigned uSpeed = (unsigned)(cbSrc / (long double)NanoTS * 1000000000.0 / 1024);
102	RTPrintf("CRC-32 %'9u KB/s %'15llu ns - %08x\n", uSpeed, NanoTS, u32Crc);
103
104
105	NanoTS = RTTimeNanoTS();
106	uint64_t u64Crc = RTCrc64(pabSrc, cbSrc);
107	NanoTS = RTTimeNanoTS() - NanoTS;
108	uSpeed = (unsigned)(cbSrc / (long double)NanoTS * 1000000000.0 / 1024);
109	RTPrintf("CRC-64 %'9u KB/s %'15llu ns - %016llx\n", uSpeed, NanoTS, u64Crc);
110
111	NanoTS = RTTimeNanoTS();
112	u32Crc = RTCrcAdler32(pabSrc, cbSrc);
113	NanoTS = RTTimeNanoTS() - NanoTS;
114	uSpeed = (unsigned)(cbSrc / (long double)NanoTS * 1000000000.0 / 1024);
115	RTPrintf("Adler-32 %'9u KB/s %'15llu ns - %08x\n", uSpeed, NanoTS, u32Crc);
116
117	NanoTS = RTTimeNanoTS();
118	uint8_t abMd5Hash[RTMD5HASHSIZE];
119	RTMd5(pabSrc, cbSrc, abMd5Hash);
120	NanoTS = RTTimeNanoTS() - NanoTS;
121	uSpeed = (unsigned)(cbSrc / (long double)NanoTS * 1000000000.0 / 1024);
122	char szDigest[257];
123	RTMd5ToString(abMd5Hash, szDigest, sizeof(szDigest));
124	RTPrintf("MD5 %'9u KB/s %'15llu ns - %s\n", uSpeed, NanoTS, szDigest);
125
126	NanoTS = RTTimeNanoTS();
127	uint8_t abSha1Hash[RTSHA1_HASH_SIZE];
128	RTSha1(pabSrc, cbSrc, abSha1Hash);
129	NanoTS = RTTimeNanoTS() - NanoTS;
130	uSpeed = (unsigned)(cbSrc / (long double)NanoTS * 1000000000.0 / 1024);
131	RTSha1ToString(abSha1Hash, szDigest, sizeof(szDigest));
132	RTPrintf("SHA-1 %'9u KB/s %'15llu ns - %s\n", uSpeed, NanoTS, szDigest);
133
134	NanoTS = RTTimeNanoTS();
135	uint8_t abSha256Hash[RTSHA256_HASH_SIZE];
136	RTSha256(pabSrc, cbSrc, abSha256Hash);
137	NanoTS = RTTimeNanoTS() - NanoTS;
138	uSpeed = (unsigned)(cbSrc / (long double)NanoTS * 1000000000.0 / 1024);
139	RTSha256ToString(abSha256Hash, szDigest, sizeof(szDigest));
140	RTPrintf("SHA-256 %'9u KB/s %'15llu ns - %s\n", uSpeed, NanoTS, szDigest);
141
142	NanoTS = RTTimeNanoTS();
143	uint8_t abSha512Hash[RTSHA512_HASH_SIZE];
144	RTSha512(pabSrc, cbSrc, abSha512Hash);
145	NanoTS = RTTimeNanoTS() - NanoTS;
146	uSpeed = (unsigned)(cbSrc / (long double)NanoTS * 1000000000.0 / 1024);
147	RTSha512ToString(abSha512Hash, szDigest, sizeof(szDigest));
148	RTPrintf("SHA-512 %'9u KB/s %'15llu ns - %s\n", uSpeed, NanoTS, szDigest);
149	}
150
151
152	/**
153	* Benchmark RTCrc routines potentially relevant for SSM or PGM - Page by page.
154	*
155	* @param pabSrc Pointer to the test data.
156	* @param cbSrc The size of the test data.
157	*/
158	static void tstBenchmarkCRCsPageByPage(uint8_t const *pabSrc, size_t cbSrc)
159	{
160	RTPrintf("Algorithm Speed Time \n"
161	"----------------------------------------------\n");
162
163	size_t const cPages = cbSrc / PAGE_SIZE;
164
165	uint64_t NanoTS = RTTimeNanoTS();
166	for (uint32_t iPage = 0; iPage < cPages; iPage++)
167	RTCrc32(&pabSrc[iPage * PAGE_SIZE], PAGE_SIZE);
168	NanoTS = RTTimeNanoTS() - NanoTS;
169	unsigned uSpeed = (unsigned)(cbSrc / (long double)NanoTS * 1000000000.0 / 1024);
170	RTPrintf("CRC-32 %'9u KB/s %'15llu ns\n", uSpeed, NanoTS);
171
172
173	NanoTS = RTTimeNanoTS();
174	for (uint32_t iPage = 0; iPage < cPages; iPage++)
175	RTCrc64(&pabSrc[iPage * PAGE_SIZE], PAGE_SIZE);
176	NanoTS = RTTimeNanoTS() - NanoTS;
177	uSpeed = (unsigned)(cbSrc / (long double)NanoTS * 1000000000.0 / 1024);
178	RTPrintf("CRC-64 %'9u KB/s %'15llu ns\n", uSpeed, NanoTS);
179
180	NanoTS = RTTimeNanoTS();
181	for (uint32_t iPage = 0; iPage < cPages; iPage++)
182	RTCrcAdler32(&pabSrc[iPage * PAGE_SIZE], PAGE_SIZE);
183	NanoTS = RTTimeNanoTS() - NanoTS;
184	uSpeed = (unsigned)(cbSrc / (long double)NanoTS * 1000000000.0 / 1024);
185	RTPrintf("Adler-32 %'9u KB/s %'15llu ns\n", uSpeed, NanoTS);
186
187	NanoTS = RTTimeNanoTS();
188	uint8_t abMd5Hash[RTMD5HASHSIZE];
189	for (uint32_t iPage = 0; iPage < cPages; iPage++)
190	RTMd5(&pabSrc[iPage * PAGE_SIZE], PAGE_SIZE, abMd5Hash);
191	NanoTS = RTTimeNanoTS() - NanoTS;
192	uSpeed = (unsigned)(cbSrc / (long double)NanoTS * 1000000000.0 / 1024);
193	RTPrintf("MD5 %'9u KB/s %'15llu ns\n", uSpeed, NanoTS);
194
195	NanoTS = RTTimeNanoTS();
196	uint8_t abSha1Hash[RTSHA1_HASH_SIZE];
197	for (uint32_t iPage = 0; iPage < cPages; iPage++)
198	RTSha1(&pabSrc[iPage * PAGE_SIZE], PAGE_SIZE, abSha1Hash);
199	NanoTS = RTTimeNanoTS() - NanoTS;
200	uSpeed = (unsigned)(cbSrc / (long double)NanoTS * 1000000000.0 / 1024);
201	RTPrintf("SHA-1 %'9u KB/s %'15llu ns\n", uSpeed, NanoTS);
202
203	NanoTS = RTTimeNanoTS();
204	uint8_t abSha256Hash[RTSHA256_HASH_SIZE];
205	for (uint32_t iPage = 0; iPage < cPages; iPage++)
206	RTSha256(&pabSrc[iPage * PAGE_SIZE], PAGE_SIZE, abSha256Hash);
207	NanoTS = RTTimeNanoTS() - NanoTS;
208	uSpeed = (unsigned)(cbSrc / (long double)NanoTS * 1000000000.0 / 1024);
209	RTPrintf("SHA-256 %'9u KB/s %'15llu ns\n", uSpeed, NanoTS);
210
211	NanoTS = RTTimeNanoTS();
212	uint8_t abSha512Hash[RTSHA512_HASH_SIZE];
213	for (uint32_t iPage = 0; iPage < cPages; iPage++)
214	RTSha512(&pabSrc[iPage * PAGE_SIZE], PAGE_SIZE, abSha512Hash);
215	NanoTS = RTTimeNanoTS() - NanoTS;
216	uSpeed = (unsigned)(cbSrc / (long double)NanoTS * 1000000000.0 / 1024);
217	RTPrintf("SHA-512 %'9u KB/s %'15llu ns\n", uSpeed, NanoTS);
218	}
219
220
221	/** Prints an error message and returns 1 for quick return from main use. */
222	static int Error(const char *pszMsgFmt, ...)
223	{
224	RTStrmPrintf(g_pStdErr, "\nerror: ");
225	va_list va;
226	va_start(va, pszMsgFmt);
227	RTStrmPrintfV(g_pStdErr, pszMsgFmt, va);
228	va_end(va);
229	return 1;
230	}
231
232
233	int main(int argc, char **argv)
234	{
235	RTR3Init();
236
237	/*
238	* Parse arguments.
239	*/
240	static const RTGETOPTDEF s_aOptions[] =
241	{
242	{ "--interations", 'i', RTGETOPT_REQ_UINT32 },
243	{ "--num-pages", 'n', RTGETOPT_REQ_UINT32 },
244	{ "--page-at-a-time", 'c', RTGETOPT_REQ_UINT32 },
245	{ "--page-file", 'f', RTGETOPT_REQ_STRING },
246	{ "--offset", 'o', RTGETOPT_REQ_UINT64 },
247	};
248
249	const char *pszPageFile = NULL;
250	uint64_t offPageFile = 0;
251	uint32_t cIterations = 1;
252	uint32_t cPagesAtATime = 1;
253	RTGETOPTUNION Val;
254	RTGETOPTSTATE State;
255	int rc = RTGetOptInit(&State, argc, argv, &s_aOptions[0], RT_ELEMENTS(s_aOptions), 1, 0);
256	AssertRCReturn(rc, 1);
257
258	while ((rc = RTGetOpt(&State, &Val)))
259	{
260	switch (rc)
261	{
262	case 'n':
263	g_cPages = Val.u32;
264	if (g_cPages * PAGE_SIZE * 4 / (PAGE_SIZE * 4) != g_cPages)
265	return Error("The specified page count is too high: %#x (%#llx bytes)\n", g_cPages, (uint64_t)g_cPages * PAGE_SHIFT);
266	if (g_cPages < 1)
267	return Error("The specified page count is too low: %#x\n", g_cPages);
268	break;
269
270	case 'i':
271	cIterations = Val.u32;
272	if (cIterations < 1)
273	return Error("The number of iterations must be 1 or higher\n");
274	break;
275
276	case 'c':
277	cPagesAtATime = Val.u32;
278	if (cPagesAtATime < 1 \|\| cPagesAtATime > 10240)
279	return Error("The specified pages-at-a-time count is out of range: %#x\n", cPagesAtATime);
280	break;
281
282	case 'f':
283	pszPageFile = Val.psz;
284	break;
285
286	case 'o':
287	offPageFile = Val.u64;
288	break;
289
290	case 'O':
291	offPageFile = Val.u64 * PAGE_SIZE;
292	break;
293
294	case 'h':
295	RTPrintf("syntax: tstCompressionBenchmark [options]\n"
296	"\n"
297	"Options:\n"
298	" -h, --help\n"
299	" Show this help page\n"
300	" -i, --interations <num>\n"
301	" The number of iterations.\n"
302	" -n, --num-pages <pages>\n"
303	" The number of pages.\n"
304	" -c, --pages-at-a-time <pages>\n"
305	" Number of pages at a time.\n"
306	" -f, --page-file <filename>\n"
307	" File or device to read the page from. The default\n"
308	" is to generate some garbage.\n"
309	" -o, --offset <file-offset>\n"
310	" Offset into the page file to start reading at.\n");
311	return 0;
312
313	case 'V':
314	RTPrintf("%sr%s\n", RTBldCfgVersion(), RTBldCfgRevisionStr());
315	return 0;
316
317	default:
318	return RTGetOptPrintError(rc, &Val);
319	}
320	}
321
322	g_cbPages = g_cPages * PAGE_SIZE;
323	uint64_t cbTotal = (uint64_t)g_cPages * PAGE_SIZE * cIterations;
324	uint64_t cbTotalKB = cbTotal / _1K;
325	if (cbTotal / cIterations != g_cbPages)
326	return Error("cPages * cIterations -> overflow\n");
327
328	/*
329	* Gather the test memory.
330	*/
331	if (pszPageFile)
332	{
333	size_t cbFile;
334	rc = RTFileReadAllEx(pszPageFile, offPageFile, g_cbPages, RTFILE_RDALL_O_DENY_NONE, (void **)&g_pabSrc, &cbFile);
335	if (RT_FAILURE(rc))
336	return Error("Error reading %zu bytes from %s at %llu: %Rrc\n", g_cbPages, pszPageFile, offPageFile, rc);
337	if (cbFile != g_cbPages)
338	return Error("Error reading %zu bytes from %s at %llu: got %zu bytes\n", g_cbPages, pszPageFile, offPageFile, cbFile);
339	}
340	else
341	{
342	g_pabSrc = (uint8_t *)RTMemAlloc(g_cbPages);
343	if (g_pabSrc)
344	{
345	/* Just fill it with something - warn about the low quality of the something. */
346	RTPrintf("tstCompressionBenchmark: WARNING! No input file was specified so the source\n"
347	"buffer will be filled with generated data of questionable quality.\n");
348	#ifdef RT_OS_LINUX
349	RTPrintf("To get real RAM on linux: sudo dd if=/dev/mem ... \n");
350	#endif
351	uint8_t *pb = g_pabSrc;
352	uint8_t *pbEnd = &g_pabSrc[g_cbPages];
353	for (; pb != pbEnd; pb += 16)
354	{
355	char szTmp[17];
356	RTStrPrintf(szTmp, sizeof(szTmp), "aaaa%08Xzzzz", (uint32_t)(uintptr_t)pb);
357	memcpy(pb, szTmp, 16);
358	}
359	}
360	}
361
362	g_pabDecompr = (uint8_t *)RTMemAlloc(g_cbPages);
363	g_cbComprAlloc = RT_MAX(g_cbPages * 2, 256 * PAGE_SIZE);
364	g_pabCompr = (uint8_t *)RTMemAlloc(g_cbComprAlloc);
365	if (!g_pabSrc \|\| !g_pabDecompr \|\| !g_pabCompr)
366	return Error("failed to allocate memory buffers (g_cPages=%#x)\n", g_cPages);
367
368	/*
369	* Double loop compressing and uncompressing the data, where the outer does
370	* the specified number of interations while the inner applies the different
371	* compression algorithms.
372	*/
373	struct
374	{
375	/** The time spent decompressing. */
376	uint64_t cNanoDecompr;
377	/** The time spent compressing. */
378	uint64_t cNanoCompr;
379	/** The size of the compressed data. */
380	uint64_t cbCompr;
381	/** First error. */
382	int rc;
383	/** The compression style: block or stream. */
384	bool fBlock;
385	/** Compresstion type. */
386	RTZIPTYPE enmType;
387	/** Compresison level. */
388	RTZIPLEVEL enmLevel;
389	/** Method name. */
390	const char *pszName;
391	} aTests[] =
392	{
393	{ 0, 0, 0, VINF_SUCCESS, false, RTZIPTYPE_STORE, RTZIPLEVEL_DEFAULT, "RTZip/Store" },
394	{ 0, 0, 0, VINF_SUCCESS, false, RTZIPTYPE_LZF, RTZIPLEVEL_DEFAULT, "RTZip/LZF" },
395	/* { 0, 0, 0, VINF_SUCCESS, false, RTZIPTYPE_ZLIB, RTZIPLEVEL_DEFAULT, "RTZip/zlib" }, - slow plus it randomly hits VERR_GENERAL_FAILURE atm. */
396	{ 0, 0, 0, VINF_SUCCESS, true, RTZIPTYPE_STORE, RTZIPLEVEL_DEFAULT, "RTZipBlock/Store" },
397	{ 0, 0, 0, VINF_SUCCESS, true, RTZIPTYPE_LZF, RTZIPLEVEL_DEFAULT, "RTZipBlock/LZF" },
398	{ 0, 0, 0, VINF_SUCCESS, true, RTZIPTYPE_LZJB, RTZIPLEVEL_DEFAULT, "RTZipBlock/LZJB" },
399	{ 0, 0, 0, VINF_SUCCESS, true, RTZIPTYPE_LZO, RTZIPLEVEL_DEFAULT, "RTZipBlock/LZO" },
400	};
401	RTPrintf("tstCompressionBenchmark: TESTING..");
402	for (uint32_t i = 0; i < cIterations; i++)
403	{
404	for (uint32_t j = 0; j < RT_ELEMENTS(aTests); j++)
405	{
406	if (RT_FAILURE(aTests[j].rc))
407	continue;
408	memset(g_pabCompr, 0xaa, g_cbComprAlloc);
409	memset(g_pabDecompr, 0xcc, g_cbPages);
410	g_cbCompr = 0;
411	g_offComprIn = 0;
412	RTPrintf("."); RTStrmFlush(g_pStdOut);
413
414	/*
415	* Compress it.
416	*/
417	uint64_t NanoTS = RTTimeNanoTS();
418	if (aTests[j].fBlock)
419	{
420	size_t cbLeft = g_cbComprAlloc;
421	uint8_t const *pbSrcPage = g_pabSrc;
422	uint8_t *pbDstPage = g_pabCompr;
423	for (size_t iPage = 0; iPage < g_cPages; iPage += cPagesAtATime)
424	{
425	AssertBreakStmt(cbLeft > PAGE_SIZE * 4, aTests[j].rc = rc = VERR_BUFFER_OVERFLOW);
426	uint32_t pcb = (uint32_t )pbDstPage;
427	pbDstPage += sizeof(uint32_t);
428	cbLeft -= sizeof(uint32_t);
429	size_t cbSrc = RT_MIN(g_cPages - iPage, cPagesAtATime) * PAGE_SIZE;
430	size_t cbDst;
431	rc = RTZipBlockCompress(aTests[j].enmType, aTests[j].enmLevel, 0 /fFlags/,
432	pbSrcPage, cbSrc,
433	pbDstPage, cbLeft, &cbDst);
434	if (RT_FAILURE(rc))
435	{
436	Error("RTZipBlockCompress failed for '%s' (#%u): %Rrc\n", aTests[j].pszName, j, rc);
437	aTests[j].rc = rc;
438	break;
439	}
440	*pcb = (uint32_t)cbDst;
441	cbLeft -= cbDst;
442	pbDstPage += cbDst;
443	pbSrcPage += cbSrc;
444	}
445	if (RT_FAILURE(rc))
446	continue;
447	g_cbCompr = pbDstPage - g_pabCompr;
448	}
449	else
450	{
451	PRTZIPCOMP pZipComp;
452	rc = RTZipCompCreate(&pZipComp, NULL, ComprOutCallback, aTests[j].enmType, aTests[j].enmLevel);
453	if (RT_FAILURE(rc))
454	{
455	Error("Failed to create the compressor for '%s' (#%u): %Rrc\n", aTests[j].pszName, j, rc);
456	aTests[j].rc = rc;
457	continue;
458	}
459
460	uint8_t const *pbSrcPage = g_pabSrc;
461	for (size_t iPage = 0; iPage < g_cPages; iPage += cPagesAtATime)
462	{
463	size_t cb = RT_MIN(g_cPages - iPage, cPagesAtATime) * PAGE_SIZE;
464	rc = RTZipCompress(pZipComp, pbSrcPage, cb);
465	if (RT_FAILURE(rc))
466	{
467	Error("RTZipCompress failed for '%s' (#%u): %Rrc\n", aTests[j].pszName, j, rc);
468	aTests[j].rc = rc;
469	break;
470	}
471	pbSrcPage += cb;
472	}
473	if (RT_FAILURE(rc))
474	continue;
475	rc = RTZipCompFinish(pZipComp);
476	if (RT_FAILURE(rc))
477	{
478	Error("RTZipCompFinish failed for '%s' (#%u): %Rrc\n", aTests[j].pszName, j, rc);
479	aTests[j].rc = rc;
480	break;
481	}
482	RTZipCompDestroy(pZipComp);
483	}
484	NanoTS = RTTimeNanoTS() - NanoTS;
485	aTests[j].cbCompr += g_cbCompr;
486	aTests[j].cNanoCompr += NanoTS;
487
488	/*
489	* Decompress it.
490	*/
491	NanoTS = RTTimeNanoTS();
492	if (aTests[j].fBlock)
493	{
494	uint8_t const *pbSrcPage = g_pabCompr;
495	size_t cbLeft = g_cbCompr;
496	uint8_t *pbDstPage = g_pabDecompr;
497	for (size_t iPage = 0; iPage < g_cPages; iPage += cPagesAtATime)
498	{
499	size_t cbDst = RT_MIN(g_cPages - iPage, cPagesAtATime) * PAGE_SIZE;
500	size_t cbSrc = (uint32_t )pbSrcPage;
501	pbSrcPage += sizeof(uint32_t);
502	cbLeft -= sizeof(uint32_t);
503	rc = RTZipBlockDecompress(aTests[j].enmType, 0 /fFlags/,
504	pbSrcPage, cbSrc, &cbSrc,
505	pbDstPage, cbDst, &cbDst);
506	if (RT_FAILURE(rc))
507	{
508	Error("RTZipBlockDecompress failed for '%s' (#%u): %Rrc\n", aTests[j].pszName, j, rc);
509	aTests[j].rc = rc;
510	break;
511	}
512	pbDstPage += cbDst;
513	cbLeft -= cbSrc;
514	pbSrcPage += cbSrc;
515	}
516	if (RT_FAILURE(rc))
517	continue;
518	}
519	else
520	{
521	PRTZIPDECOMP pZipDecomp;
522	rc = RTZipDecompCreate(&pZipDecomp, NULL, DecomprInCallback);
523	if (RT_FAILURE(rc))
524	{
525	Error("Failed to create the decompressor for '%s' (#%u): %Rrc\n", aTests[j].pszName, j, rc);
526	aTests[j].rc = rc;
527	continue;
528	}
529
530	uint8_t *pbDstPage = g_pabDecompr;
531	for (size_t iPage = 0; iPage < g_cPages; iPage += cPagesAtATime)
532	{
533	size_t cb = RT_MIN(g_cPages - iPage, cPagesAtATime) * PAGE_SIZE;
534	rc = RTZipDecompress(pZipDecomp, pbDstPage, cb, NULL);
535	if (RT_FAILURE(rc))
536	{
537	Error("RTZipDecompress failed for '%s' (#%u): %Rrc\n", aTests[j].pszName, j, rc);
538	aTests[j].rc = rc;
539	break;
540	}
541	pbDstPage += cb;
542	}
543	RTZipDecompDestroy(pZipDecomp);
544	if (RT_FAILURE(rc))
545	continue;
546	}
547	NanoTS = RTTimeNanoTS() - NanoTS;
548	aTests[j].cNanoDecompr += NanoTS;
549
550	if (memcmp(g_pabDecompr, g_pabSrc, g_cbPages))
551	{
552	Error("The compressed data doesn't match the source for '%s' (%#u)\n", aTests[j].pszName, j);
553	aTests[j].rc = VERR_BAD_EXE_FORMAT;
554	continue;
555	}
556	}
557	}
558	if (RT_SUCCESS(rc))
559	RTPrintf("\n");
560
561	/*
562	* Report the results.
563	*/
564	rc = 0;
565	RTPrintf("tstCompressionBenchmark: BEGIN RESULTS\n");
566	RTPrintf("%-20s Compression Decompression\n", "");
567	RTPrintf("%-20s In Out Ratio Size In Out\n", "Method");
568	RTPrintf("%.20s-----------------------------------------------------------------------------------------\n", "---------------------------------------------");
569	for (uint32_t j = 0; j < RT_ELEMENTS(aTests); j++)
570	{
571	if (RT_SUCCESS(aTests[j].rc))
572	{
573	unsigned uComprSpeedIn = (unsigned)(cbTotalKB / (long double)aTests[j].cNanoCompr * 1000000000.0);
574	unsigned uComprSpeedOut = (unsigned)(aTests[j].cbCompr / (long double)aTests[j].cNanoCompr * 1000000000.0 / 1024);
575	unsigned uRatio = (unsigned)(aTests[j].cbCompr / cIterations * 100 / g_cbPages);
576	unsigned uDecomprSpeedIn = (unsigned)(aTests[j].cbCompr / (long double)aTests[j].cNanoDecompr * 1000000000.0 / 1024);
577	unsigned uDecomprSpeedOut = (unsigned)(cbTotalKB / (long double)aTests[j].cNanoDecompr * 1000000000.0);
578	RTPrintf("%-20s %'9u KB/s %'9u KB/s %3u%% %'11llu bytes %'9u KB/s %'9u KB/s",
579	aTests[j].pszName,
580	uComprSpeedIn, uComprSpeedOut, uRatio, aTests[j].cbCompr / cIterations,
581	uDecomprSpeedIn, uDecomprSpeedOut);
582	#if 0
583	RTPrintf(" [%'14llu / %'14llu ns]\n",
584	aTests[j].cNanoCompr / cIterations,
585	aTests[j].cNanoDecompr / cIterations);
586	#else
587	RTPrintf("\n");
588	#endif
589	}
590	else
591	{
592	RTPrintf("%-20s: %Rrc\n", aTests[j].pszName, aTests[j].rc);
593	rc = 1;
594	}
595	}
596	if (pszPageFile)
597	RTPrintf("Input: %'10zu pages from '%s' starting at offset %'lld (%#llx)\n"
598	" %'11zu bytes\n",
599	g_cPages, pszPageFile, offPageFile, offPageFile, g_cbPages);
600	else
601	RTPrintf("Input: %'10zu pages of generated rubbish %'11zu bytes\n",
602	g_cPages, g_cbPages);
603
604	/*
605	* Count zero pages in the data set.
606	*/
607	size_t cZeroPages = 0;
608	for (size_t iPage = 0; iPage < g_cPages; iPage++)
609	{
610	if (!ASMMemIsAllU32(&g_pabSrc[iPage * PAGE_SIZE], PAGE_SIZE, 0))
611	cZeroPages++;
612	}
613	RTPrintf(" %'10zu zero pages (%u %%)\n", cZeroPages, cZeroPages * 100 / g_cPages);
614
615	/*
616	* A little extension to the test, benchmark relevant CRCs.
617	*/
618	RTPrintf("\n"
619	"tstCompressionBenchmark: Hash/CRC - All In One\n");
620	tstBenchmarkCRCsAllInOne(g_pabSrc, g_cbPages);
621
622	RTPrintf("\n"
623	"tstCompressionBenchmark: Hash/CRC - Page by Page\n");
624	tstBenchmarkCRCsPageByPage(g_pabSrc, g_cbPages);
625
626	RTPrintf("\n"
627	"tstCompressionBenchmark: Hash/CRC - Zero Page Digest\n");
628	static uint8_t s_abZeroPg[PAGE_SIZE];
629	RT_ZERO(s_abZeroPg);
630	tstBenchmarkCRCsAllInOne(s_abZeroPg, PAGE_SIZE);
631
632	RTPrintf("\n"
633	"tstCompressionBenchmark: Hash/CRC - Zero Half Page Digest\n");
634	tstBenchmarkCRCsAllInOne(s_abZeroPg, PAGE_SIZE / 2);
635
636	RTPrintf("tstCompressionBenchmark: END RESULTS\n");
637
638	return rc;
639	}
640

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source: vbox/trunk/src/VBox/VMM/testcase/tstCompressionBenchmark.cpp@ 29287

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