1 /*
2 bench.c - Demo program to benchmark open-source compression algorithm
3 Copyright (C) Yann Collet 2012-2016
4
5 GPL v2 License
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License along
18 with this program; if not, write to the Free Software Foundation, Inc.,
19 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
20
21 You can contact the author at :
22 - LZ4 source repository : https://github.com/lz4/lz4
23 - LZ4 public forum : https://groups.google.com/forum/#!forum/lz4c
24 */
25
26
27 // S_ISREG & gettimeofday() are not supported by MSVC
28 #if defined(_MSC_VER) || defined(_WIN32)
29 # define BMK_LEGACY_TIMER 1
30 #endif
31
32
33 /**************************************
34 * Includes
35 **************************************/
36 #include "platform.h" /* _CRT_SECURE_NO_WARNINGS, Large Files support */
37 #include "util.h" /* U32, UTIL_getFileSize */
38 #include <stdlib.h> /* malloc, free */
39 #include <stdio.h> /* fprintf, fopen, ftello */
40 #include <sys/types.h> /* stat64 */
41 #include <sys/stat.h> /* stat64 */
42 #include <string.h> /* strcmp */
43 #include <time.h> /* clock_t, clock(), CLOCKS_PER_SEC */
44
45 #define LZ4_DISABLE_DEPRECATE_WARNINGS /* LZ4_decompress_fast */
46 #include "lz4.h"
47 #include "lz4hc.h"
48 #include "lz4frame.h"
49
50 #include "xxhash.h"
51
52
53 /**************************************
54 * Constants
55 **************************************/
56 #define PROGRAM_DESCRIPTION "LZ4 speed analyzer"
57 #define AUTHOR "Yann Collet"
58 #define WELCOME_MESSAGE "*** %s v%s %i-bits, by %s ***\n", PROGRAM_DESCRIPTION, LZ4_VERSION_STRING, (int)(sizeof(void*)*8), AUTHOR
59
60 #define NBLOOPS 6
61 #define TIMELOOP (CLOCKS_PER_SEC * 25 / 10)
62
63 #define KB *(1 <<10)
64 #define MB *(1 <<20)
65 #define GB *(1U<<30)
66
67 #define KNUTH 2654435761U
68 #define MAX_MEM (1920 MB)
69 #define DEFAULT_CHUNKSIZE (4 MB)
70
71 #define ALL_COMPRESSORS 0
72 #define ALL_DECOMPRESSORS 0
73
74
75 /**************************************
76 * Local structures
77 **************************************/
78 struct chunkParameters
79 {
80 U32 id;
81 char* origBuffer;
82 char* compressedBuffer;
83 int origSize;
84 int compressedSize;
85 };
86
87
88 /**************************************
89 * Macros
90 **************************************/
91 #define DISPLAY(...) fprintf(stderr, __VA_ARGS__)
92 #define PROGRESS(...) g_noPrompt ? 0 : DISPLAY(__VA_ARGS__)
93
94
95 /**************************************
96 * Benchmark Parameters
97 **************************************/
98 static int g_chunkSize = DEFAULT_CHUNKSIZE;
99 static int g_nbIterations = NBLOOPS;
100 static int g_pause = 0;
101 static int g_compressionTest = 1;
102 static int g_compressionAlgo = ALL_COMPRESSORS;
103 static int g_decompressionTest = 1;
104 static int g_decompressionAlgo = ALL_DECOMPRESSORS;
105 static int g_noPrompt = 0;
106
BMK_setBlocksize(int bsize)107 static void BMK_setBlocksize(int bsize)
108 {
109 g_chunkSize = bsize;
110 DISPLAY("-Using Block Size of %i KB-\n", g_chunkSize>>10);
111 }
112
BMK_setNbIterations(int nbLoops)113 static void BMK_setNbIterations(int nbLoops)
114 {
115 g_nbIterations = nbLoops;
116 DISPLAY("- %i iterations -\n", g_nbIterations);
117 }
118
BMK_setPause(void)119 static void BMK_setPause(void)
120 {
121 g_pause = 1;
122 }
123
124
125 /*********************************************************
126 * Private functions
127 *********************************************************/
BMK_GetClockSpan(clock_t clockStart)128 static clock_t BMK_GetClockSpan( clock_t clockStart )
129 {
130 return clock() - clockStart; /* works even if overflow; max span ~30 mn */
131 }
132
133
BMK_findMaxMem(U64 requiredMem)134 static size_t BMK_findMaxMem(U64 requiredMem)
135 {
136 size_t step = 64 MB;
137 BYTE* testmem=NULL;
138
139 requiredMem = (((requiredMem >> 26) + 1) << 26);
140 requiredMem += 2*step;
141 if (requiredMem > MAX_MEM) requiredMem = MAX_MEM;
142
143 while (!testmem) {
144 if (requiredMem > step) requiredMem -= step;
145 else requiredMem >>= 1;
146 testmem = (BYTE*) malloc ((size_t)requiredMem);
147 }
148 free (testmem);
149
150 /* keep some space available */
151 if (requiredMem > step) requiredMem -= step;
152 else requiredMem >>= 1;
153
154 return (size_t)requiredMem;
155 }
156
157
158 /*********************************************************
159 * Benchmark function
160 *********************************************************/
161 static LZ4_stream_t LZ4_stream;
local_LZ4_resetDictT(void)162 static void local_LZ4_resetDictT(void)
163 {
164 void* const r = LZ4_initStream(&LZ4_stream, sizeof(LZ4_stream));
165 assert(r != NULL); (void)r;
166 }
167
local_LZ4_createStream(void)168 static void local_LZ4_createStream(void)
169 {
170 void* const r = LZ4_initStream(&LZ4_stream, sizeof(LZ4_stream));
171 assert(r != NULL); (void)r;
172 }
173
local_LZ4_saveDict(const char * in,char * out,int inSize)174 static int local_LZ4_saveDict(const char* in, char* out, int inSize)
175 {
176 (void)in;
177 return LZ4_saveDict(&LZ4_stream, out, inSize);
178 }
179
local_LZ4_compress_default_large(const char * in,char * out,int inSize)180 static int local_LZ4_compress_default_large(const char* in, char* out, int inSize)
181 {
182 return LZ4_compress_default(in, out, inSize, LZ4_compressBound(inSize));
183 }
184
local_LZ4_compress_default_small(const char * in,char * out,int inSize)185 static int local_LZ4_compress_default_small(const char* in, char* out, int inSize)
186 {
187 return LZ4_compress_default(in, out, inSize, LZ4_compressBound(inSize)-1);
188 }
189
local_LZ4_compress_destSize(const char * in,char * out,int inSize)190 static int local_LZ4_compress_destSize(const char* in, char* out, int inSize)
191 {
192 return LZ4_compress_destSize(in, out, &inSize, LZ4_compressBound(inSize)-1);
193 }
194
local_LZ4_compress_fast0(const char * in,char * out,int inSize)195 static int local_LZ4_compress_fast0(const char* in, char* out, int inSize)
196 {
197 return LZ4_compress_fast(in, out, inSize, LZ4_compressBound(inSize), 0);
198 }
199
local_LZ4_compress_fast1(const char * in,char * out,int inSize)200 static int local_LZ4_compress_fast1(const char* in, char* out, int inSize)
201 {
202 return LZ4_compress_fast(in, out, inSize, LZ4_compressBound(inSize), 1);
203 }
204
local_LZ4_compress_fast2(const char * in,char * out,int inSize)205 static int local_LZ4_compress_fast2(const char* in, char* out, int inSize)
206 {
207 return LZ4_compress_fast(in, out, inSize, LZ4_compressBound(inSize), 2);
208 }
209
local_LZ4_compress_fast17(const char * in,char * out,int inSize)210 static int local_LZ4_compress_fast17(const char* in, char* out, int inSize)
211 {
212 return LZ4_compress_fast(in, out, inSize, LZ4_compressBound(inSize), 17);
213 }
214
local_LZ4_compress_fast_extState0(const char * in,char * out,int inSize)215 static int local_LZ4_compress_fast_extState0(const char* in, char* out, int inSize)
216 {
217 return LZ4_compress_fast_extState(&LZ4_stream, in, out, inSize, LZ4_compressBound(inSize), 0);
218 }
219
local_LZ4_compress_fast_continue0(const char * in,char * out,int inSize)220 static int local_LZ4_compress_fast_continue0(const char* in, char* out, int inSize)
221 {
222 return LZ4_compress_fast_continue(&LZ4_stream, in, out, inSize, LZ4_compressBound(inSize), 0);
223 }
224
225 #ifndef LZ4_DLL_IMPORT
226 #if defined (__cplusplus)
227 extern "C" {
228 #endif
229
230 /* declare hidden function */
231 extern int LZ4_compress_forceExtDict (LZ4_stream_t* LZ4_stream, const char* source, char* dest, int inputSize);
232
233 #if defined (__cplusplus)
234 }
235 #endif
236
local_LZ4_compress_forceDict(const char * in,char * out,int inSize)237 static int local_LZ4_compress_forceDict(const char* in, char* out, int inSize)
238 {
239 return LZ4_compress_forceExtDict(&LZ4_stream, in, out, inSize);
240 }
241 #endif
242
243
244 /* HC compression functions */
245 LZ4_streamHC_t LZ4_streamHC;
local_LZ4_resetStreamHC(void)246 static void local_LZ4_resetStreamHC(void)
247 {
248 LZ4_initStreamHC(&LZ4_streamHC, sizeof(LZ4_streamHC));
249 }
250
local_LZ4_saveDictHC(const char * in,char * out,int inSize)251 static int local_LZ4_saveDictHC(const char* in, char* out, int inSize)
252 {
253 (void)in;
254 return LZ4_saveDictHC(&LZ4_streamHC, out, inSize);
255 }
256
local_LZ4_compress_HC(const char * in,char * out,int inSize)257 static int local_LZ4_compress_HC(const char* in, char* out, int inSize)
258 {
259 return LZ4_compress_HC(in, out, inSize, LZ4_compressBound(inSize), 9);
260 }
261
local_LZ4_compress_HC_extStateHC(const char * in,char * out,int inSize)262 static int local_LZ4_compress_HC_extStateHC(const char* in, char* out, int inSize)
263 {
264 return LZ4_compress_HC_extStateHC(&LZ4_streamHC, in, out, inSize, LZ4_compressBound(inSize), 9);
265 }
266
local_LZ4_compress_HC_continue(const char * in,char * out,int inSize)267 static int local_LZ4_compress_HC_continue(const char* in, char* out, int inSize)
268 {
269 return LZ4_compress_HC_continue(&LZ4_streamHC, in, out, inSize, LZ4_compressBound(inSize));
270 }
271
272
273 /* decompression functions */
local_LZ4_decompress_fast(const char * in,char * out,int inSize,int outSize)274 static int local_LZ4_decompress_fast(const char* in, char* out, int inSize, int outSize)
275 {
276 (void)inSize;
277 LZ4_decompress_fast(in, out, outSize);
278 return outSize;
279 }
280
local_LZ4_decompress_fast_usingDict_prefix(const char * in,char * out,int inSize,int outSize)281 static int local_LZ4_decompress_fast_usingDict_prefix(const char* in, char* out, int inSize, int outSize)
282 {
283 (void)inSize;
284 LZ4_decompress_fast_usingDict(in, out, outSize, out - 65536, 65536);
285 return outSize;
286 }
287
local_LZ4_decompress_fast_usingExtDict(const char * in,char * out,int inSize,int outSize)288 static int local_LZ4_decompress_fast_usingExtDict(const char* in, char* out, int inSize, int outSize)
289 {
290 (void)inSize;
291 LZ4_decompress_fast_usingDict(in, out, outSize, out - 65536, 65535);
292 return outSize;
293 }
294
local_LZ4_decompress_safe_usingDict(const char * in,char * out,int inSize,int outSize)295 static int local_LZ4_decompress_safe_usingDict(const char* in, char* out, int inSize, int outSize)
296 {
297 (void)inSize;
298 LZ4_decompress_safe_usingDict(in, out, inSize, outSize, out - 65536, 65536);
299 return outSize;
300 }
301
302 #ifndef LZ4_DLL_IMPORT
303 #if defined (__cplusplus)
304 extern "C" {
305 #endif
306
307 extern int LZ4_decompress_safe_forceExtDict(const char* in, char* out, int inSize, int outSize, const void* dict, size_t dictSize);
308
309 #if defined (__cplusplus)
310 }
311 #endif
312
local_LZ4_decompress_safe_forceExtDict(const char * in,char * out,int inSize,int outSize)313 static int local_LZ4_decompress_safe_forceExtDict(const char* in, char* out, int inSize, int outSize)
314 {
315 (void)inSize;
316 LZ4_decompress_safe_forceExtDict(in, out, inSize, outSize, out - 65536, 65536);
317 return outSize;
318 }
319 #endif
320
local_LZ4_decompress_safe_partial(const char * in,char * out,int inSize,int outSize)321 static int local_LZ4_decompress_safe_partial(const char* in, char* out, int inSize, int outSize)
322 {
323 int result = LZ4_decompress_safe_partial(in, out, inSize, outSize - 5, outSize);
324 if (result < 0) return result;
325 return outSize;
326 }
327
328
329 /* frame functions */
local_LZ4F_compressFrame(const char * in,char * out,int inSize)330 static int local_LZ4F_compressFrame(const char* in, char* out, int inSize)
331 {
332 assert(inSize >= 0);
333 return (int)LZ4F_compressFrame(out, LZ4F_compressFrameBound((size_t)inSize, NULL), in, (size_t)inSize, NULL);
334 }
335
336 static LZ4F_decompressionContext_t g_dCtx;
337
local_LZ4F_decompress(const char * in,char * out,int inSize,int outSize)338 static int local_LZ4F_decompress(const char* in, char* out, int inSize, int outSize)
339 {
340 size_t srcSize = (size_t)inSize;
341 size_t dstSize = (size_t)outSize;
342 size_t result;
343 assert(inSize >= 0);
344 assert(outSize >= 0);
345 result = LZ4F_decompress(g_dCtx, out, &dstSize, in, &srcSize, NULL);
346 if (result!=0) { DISPLAY("Error decompressing frame : unfinished frame \n"); exit(8); }
347 if (srcSize != (size_t)inSize) { DISPLAY("Error decompressing frame : read size incorrect \n"); exit(9); }
348 return (int)dstSize;
349 }
350
local_LZ4F_decompress_followHint(const char * src,char * dst,int srcSize,int dstSize)351 static int local_LZ4F_decompress_followHint(const char* src, char* dst, int srcSize, int dstSize)
352 {
353 size_t totalInSize = (size_t)srcSize;
354 size_t maxOutSize = (size_t)dstSize;
355
356 size_t inPos = 0;
357 size_t inSize = 0;
358 size_t outPos = 0;
359 size_t outRemaining = maxOutSize - outPos;
360
361 for (;;) {
362 size_t const sizeHint = LZ4F_decompress(g_dCtx, dst+outPos, &outRemaining, src+inPos, &inSize, NULL);
363 assert(!LZ4F_isError(sizeHint));
364
365 inPos += inSize;
366 inSize = sizeHint;
367
368 outPos += outRemaining;
369 outRemaining = maxOutSize - outPos;
370
371 if (!sizeHint) break;
372 }
373
374 /* frame completed */
375 if (inPos != totalInSize) {
376 DISPLAY("Error decompressing frame : must read (%u) full frame (%u) \n",
377 (unsigned)inPos, (unsigned)totalInSize);
378 exit(10);
379 }
380 return (int)outPos;
381
382 }
383
384
385 #define NB_COMPRESSION_ALGORITHMS 100
386 #define NB_DECOMPRESSION_ALGORITHMS 100
fullSpeedBench(const char ** fileNamesTable,int nbFiles)387 int fullSpeedBench(const char** fileNamesTable, int nbFiles)
388 {
389 int fileIdx=0;
390
391 /* Init */
392 { size_t const errorCode = LZ4F_createDecompressionContext(&g_dCtx, LZ4F_VERSION);
393 if (LZ4F_isError(errorCode)) { DISPLAY("dctx allocation issue \n"); return 10; } }
394
395 /* Loop for each fileName */
396 while (fileIdx<nbFiles) {
397 char* orig_buff = NULL;
398 struct chunkParameters* chunkP = NULL;
399 char* compressed_buff=NULL;
400 const char* const inFileName = fileNamesTable[fileIdx++];
401 FILE* const inFile = fopen( inFileName, "rb" );
402 U64 inFileSize;
403 size_t benchedSize;
404 int nbChunks;
405 int maxCompressedChunkSize;
406 size_t readSize;
407 int compressedBuffSize;
408 U32 crcOriginal;
409
410 /* Check file existence */
411 if (inFile==NULL) { DISPLAY( "Pb opening %s\n", inFileName); return 11; }
412
413 /* Memory size adjustments */
414 inFileSize = UTIL_getFileSize(inFileName);
415 if (inFileSize==0) { DISPLAY( "file is empty\n"); fclose(inFile); return 11; }
416 benchedSize = BMK_findMaxMem(inFileSize*2) / 2; /* because 2 buffers */
417 if (benchedSize==0) { DISPLAY( "not enough memory\n"); fclose(inFile); return 11; }
418 if ((U64)benchedSize > inFileSize) benchedSize = (size_t)inFileSize;
419 if (benchedSize < inFileSize)
420 DISPLAY("Not enough memory for '%s' full size; testing %i MB only...\n", inFileName, (int)(benchedSize>>20));
421
422 /* Allocation */
423 chunkP = (struct chunkParameters*) malloc(((benchedSize / (size_t)g_chunkSize)+1) * sizeof(struct chunkParameters));
424 orig_buff = (char*) malloc(benchedSize);
425 nbChunks = (int) ((benchedSize + (size_t)g_chunkSize - 1) / (size_t)g_chunkSize);
426 maxCompressedChunkSize = LZ4_compressBound(g_chunkSize);
427 compressedBuffSize = nbChunks * maxCompressedChunkSize;
428 compressed_buff = (char*)malloc((size_t)compressedBuffSize);
429 if(!chunkP || !orig_buff || !compressed_buff) {
430 DISPLAY("\nError: not enough memory!\n");
431 fclose(inFile);
432 free(orig_buff);
433 free(compressed_buff);
434 free(chunkP);
435 return(12);
436 }
437
438 /* Fill in src buffer */
439 DISPLAY("Loading %s... \r", inFileName);
440 readSize = fread(orig_buff, 1, benchedSize, inFile);
441 fclose(inFile);
442
443 if (readSize != benchedSize) {
444 DISPLAY("\nError: problem reading file '%s' !! \n", inFileName);
445 free(orig_buff);
446 free(compressed_buff);
447 free(chunkP);
448 return 13;
449 }
450
451 /* Calculating input Checksum */
452 crcOriginal = XXH32(orig_buff, benchedSize,0);
453
454
455 /* Bench */
456 { int loopNb, nb_loops, chunkNb, cAlgNb, dAlgNb;
457 size_t cSize=0;
458 double ratio=0.;
459
460 DISPLAY("\r%79s\r", "");
461 DISPLAY(" %s : \n", inFileName);
462
463 /* Bench Compression Algorithms */
464 for (cAlgNb=0; (cAlgNb <= NB_COMPRESSION_ALGORITHMS) && (g_compressionTest); cAlgNb++) {
465 const char* compressorName;
466 int (*compressionFunction)(const char*, char*, int);
467 void (*initFunction)(void) = NULL;
468 double bestTime = 100000000.;
469
470 /* filter compressionAlgo only */
471 if ((g_compressionAlgo != ALL_COMPRESSORS) && (g_compressionAlgo != cAlgNb)) continue;
472
473 /* Init data chunks */
474 { int i;
475 size_t remaining = benchedSize;
476 char* in = orig_buff;
477 char* out = compressed_buff;
478 nbChunks = (int) (((int)benchedSize + (g_chunkSize-1))/ g_chunkSize);
479 for (i=0; i<nbChunks; i++) {
480 chunkP[i].id = (U32)i;
481 chunkP[i].origBuffer = in; in += g_chunkSize;
482 assert(g_chunkSize > 0);
483 if (remaining > (size_t)g_chunkSize) {
484 chunkP[i].origSize = g_chunkSize;
485 remaining -= (size_t)g_chunkSize;
486 } else {
487 chunkP[i].origSize = (int)remaining;
488 remaining = 0;
489 }
490 chunkP[i].compressedBuffer = out; out += maxCompressedChunkSize;
491 chunkP[i].compressedSize = 0;
492 }
493 }
494
495 switch(cAlgNb)
496 {
497 case 0 : DISPLAY("Compression functions : \n"); continue;
498 case 1 : compressionFunction = local_LZ4_compress_default_large; compressorName = "LZ4_compress_default"; break;
499 case 2 : compressionFunction = local_LZ4_compress_default_small; compressorName = "LZ4_compress_default(small dst)"; break;
500 case 3 : compressionFunction = local_LZ4_compress_destSize; compressorName = "LZ4_compress_destSize"; break;
501 case 4 : compressionFunction = local_LZ4_compress_fast0; compressorName = "LZ4_compress_fast(0)"; break;
502 case 5 : compressionFunction = local_LZ4_compress_fast1; compressorName = "LZ4_compress_fast(1)"; break;
503 case 6 : compressionFunction = local_LZ4_compress_fast2; compressorName = "LZ4_compress_fast(2)"; break;
504 case 7 : compressionFunction = local_LZ4_compress_fast17; compressorName = "LZ4_compress_fast(17)"; break;
505 case 8 : compressionFunction = local_LZ4_compress_fast_extState0; compressorName = "LZ4_compress_fast_extState(0)"; break;
506 case 9 : compressionFunction = local_LZ4_compress_fast_continue0; initFunction = local_LZ4_createStream; compressorName = "LZ4_compress_fast_continue(0)"; break;
507
508 case 10: compressionFunction = local_LZ4_compress_HC; compressorName = "LZ4_compress_HC"; break;
509 case 12: compressionFunction = local_LZ4_compress_HC_extStateHC; compressorName = "LZ4_compress_HC_extStateHC"; break;
510 case 14: compressionFunction = local_LZ4_compress_HC_continue; initFunction = local_LZ4_resetStreamHC; compressorName = "LZ4_compress_HC_continue"; break;
511 #ifndef LZ4_DLL_IMPORT
512 case 20: compressionFunction = local_LZ4_compress_forceDict; initFunction = local_LZ4_resetDictT; compressorName = "LZ4_compress_forceDict"; break;
513 #endif
514 case 30: compressionFunction = local_LZ4F_compressFrame; compressorName = "LZ4F_compressFrame";
515 chunkP[0].origSize = (int)benchedSize; nbChunks=1;
516 break;
517 case 40: compressionFunction = local_LZ4_saveDict; compressorName = "LZ4_saveDict";
518 if (chunkP[0].origSize < 8) { DISPLAY(" cannot bench %s with less then 8 bytes \n", compressorName); continue; }
519 LZ4_loadDict(&LZ4_stream, chunkP[0].origBuffer, chunkP[0].origSize);
520 break;
521 case 41: compressionFunction = local_LZ4_saveDictHC; compressorName = "LZ4_saveDictHC";
522 if (chunkP[0].origSize < 8) { DISPLAY(" cannot bench %s with less then 8 bytes \n", compressorName); continue; }
523 LZ4_loadDictHC(&LZ4_streamHC, chunkP[0].origBuffer, chunkP[0].origSize);
524 break;
525 default :
526 continue; /* unknown ID : just skip */
527 }
528
529 for (loopNb = 1; loopNb <= g_nbIterations; loopNb++) {
530 double averageTime;
531 clock_t clockTime;
532
533 PROGRESS("%2i-%-34.34s :%10i ->\r", loopNb, compressorName, (int)benchedSize);
534 { size_t i; for (i=0; i<benchedSize; i++) compressed_buff[i]=(char)i; } /* warming up memory */
535
536 nb_loops = 0;
537 clockTime = clock();
538 while(clock() == clockTime);
539 clockTime = clock();
540 while(BMK_GetClockSpan(clockTime) < TIMELOOP) {
541 if (initFunction!=NULL) initFunction();
542 for (chunkNb=0; chunkNb<nbChunks; chunkNb++) {
543 chunkP[chunkNb].compressedSize = compressionFunction(chunkP[chunkNb].origBuffer, chunkP[chunkNb].compressedBuffer, chunkP[chunkNb].origSize);
544 if (chunkP[chunkNb].compressedSize==0) {
545 DISPLAY("ERROR ! %s() = 0 !! \n", compressorName);
546 exit(1);
547 } }
548 nb_loops++;
549 }
550 clockTime = BMK_GetClockSpan(clockTime);
551
552 nb_loops += !nb_loops; /* avoid division by zero */
553 averageTime = ((double)clockTime) / nb_loops / CLOCKS_PER_SEC;
554 if (averageTime < bestTime) bestTime = averageTime;
555 cSize=0; for (chunkNb=0; chunkNb<nbChunks; chunkNb++) cSize += (size_t)chunkP[chunkNb].compressedSize;
556 ratio = (double)cSize/(double)benchedSize*100.;
557 PROGRESS("%2i-%-34.34s :%10i ->%9i (%5.2f%%),%7.1f MB/s\r", loopNb, compressorName, (int)benchedSize, (int)cSize, ratio, (double)benchedSize / bestTime / 1000000);
558 }
559
560 if (ratio<100.)
561 DISPLAY("%2i-%-34.34s :%10i ->%9i (%5.2f%%),%7.1f MB/s\n", cAlgNb, compressorName, (int)benchedSize, (int)cSize, ratio, (double)benchedSize / bestTime / 1000000);
562 else
563 DISPLAY("%2i-%-34.34s :%10i ->%9i (%5.1f%%),%7.1f MB/s\n", cAlgNb, compressorName, (int)benchedSize, (int)cSize, ratio, (double)benchedSize / bestTime / 100000);
564 }
565
566 /* Prepare layout for decompression */
567 /* Init data chunks */
568 { int i;
569 size_t remaining = benchedSize;
570 char* in = orig_buff;
571 char* out = compressed_buff;
572
573 nbChunks = (int) (((int)benchedSize + (g_chunkSize-1))/ g_chunkSize);
574 for (i=0; i<nbChunks; i++) {
575 chunkP[i].id = (U32)i;
576 chunkP[i].origBuffer = in; in += g_chunkSize;
577 if ((int)remaining > g_chunkSize) {
578 chunkP[i].origSize = g_chunkSize;
579 remaining -= (size_t)g_chunkSize;
580 } else {
581 chunkP[i].origSize = (int)remaining;
582 remaining = 0;
583 }
584 chunkP[i].compressedBuffer = out; out += maxCompressedChunkSize;
585 chunkP[i].compressedSize = 0;
586 }
587 }
588 for (chunkNb=0; chunkNb<nbChunks; chunkNb++) {
589 chunkP[chunkNb].compressedSize = LZ4_compress_default(chunkP[chunkNb].origBuffer, chunkP[chunkNb].compressedBuffer, chunkP[chunkNb].origSize, maxCompressedChunkSize);
590 if (chunkP[chunkNb].compressedSize==0) {
591 DISPLAY("ERROR ! %s() = 0 !! \n", "LZ4_compress");
592 exit(1);
593 } }
594
595 /* Decompression Algorithms */
596 for (dAlgNb=0; (dAlgNb <= NB_DECOMPRESSION_ALGORITHMS) && g_decompressionTest; dAlgNb++) {
597 const char* dName = NULL;
598 int (*decompressionFunction)(const char*, char*, int, int) = NULL;
599 double bestTime = 100000000.;
600 int checkResult = 1;
601
602 if ((g_decompressionAlgo != ALL_DECOMPRESSORS) && (g_decompressionAlgo != dAlgNb)) continue;
603
604 switch(dAlgNb)
605 {
606 case 0: DISPLAY("Decompression functions : \n"); continue;
607 case 1: decompressionFunction = local_LZ4_decompress_fast; dName = "LZ4_decompress_fast"; break;
608 case 2: decompressionFunction = local_LZ4_decompress_fast_usingDict_prefix; dName = "LZ4_decompress_fast_usingDict(prefix)"; break;
609 case 3: decompressionFunction = local_LZ4_decompress_fast_usingExtDict; dName = "LZ4_decompress_fast_using(Ext)Dict"; break;
610 case 4: decompressionFunction = LZ4_decompress_safe; dName = "LZ4_decompress_safe"; break;
611 case 6: decompressionFunction = local_LZ4_decompress_safe_usingDict; dName = "LZ4_decompress_safe_usingDict"; break;
612 case 7: decompressionFunction = local_LZ4_decompress_safe_partial; dName = "LZ4_decompress_safe_partial"; checkResult = 0; break;
613 #ifndef LZ4_DLL_IMPORT
614 case 8: decompressionFunction = local_LZ4_decompress_safe_forceExtDict; dName = "LZ4_decompress_safe_forceExtDict"; break;
615 #endif
616 case 10:
617 case 11:
618 if (dAlgNb == 10) { decompressionFunction = local_LZ4F_decompress; dName = "LZ4F_decompress"; } /* can be skipped */
619 if (dAlgNb == 11) { decompressionFunction = local_LZ4F_decompress_followHint; dName = "LZ4F_decompress_followHint"; } /* can be skipped */
620 /* prepare compressed data using frame format */
621 { size_t const fcsize = LZ4F_compressFrame(compressed_buff, (size_t)compressedBuffSize, orig_buff, benchedSize, NULL);
622 assert(!LZ4F_isError(fcsize));
623 chunkP[0].origSize = (int)benchedSize;
624 chunkP[0].compressedSize = (int)fcsize;
625 nbChunks = 1;
626 break;
627 }
628 default :
629 continue; /* skip if unknown ID */
630 }
631
632 assert(decompressionFunction != NULL);
633 assert(dName != NULL);
634
635 { size_t i; for (i=0; i<benchedSize; i++) orig_buff[i]=0; } /* zeroing source area, for CRC checking */
636
637 for (loopNb = 1; loopNb <= g_nbIterations; loopNb++) {
638 double averageTime;
639 clock_t clockTime;
640 U32 crcDecoded;
641
642 PROGRESS("%2i-%-34.34s :%10i ->\r", loopNb, dName, (int)benchedSize);
643
644 nb_loops = 0;
645 clockTime = clock();
646 while(clock() == clockTime);
647 clockTime = clock();
648 while(BMK_GetClockSpan(clockTime) < TIMELOOP) {
649 for (chunkNb=0; chunkNb<nbChunks; chunkNb++) {
650 int const decodedSize = decompressionFunction(chunkP[chunkNb].compressedBuffer, chunkP[chunkNb].origBuffer,
651 chunkP[chunkNb].compressedSize, chunkP[chunkNb].origSize);
652 if (chunkP[chunkNb].origSize != decodedSize) {
653 DISPLAY("ERROR ! %s() == %i != %i !! \n",
654 dName, decodedSize, chunkP[chunkNb].origSize);
655 exit(1);
656 } }
657 nb_loops++;
658 }
659 clockTime = BMK_GetClockSpan(clockTime);
660
661 nb_loops += !nb_loops; /* Avoid division by zero */
662 averageTime = (double)clockTime / nb_loops / CLOCKS_PER_SEC;
663 if (averageTime < bestTime) bestTime = averageTime;
664
665 PROGRESS("%2i-%-34.34s :%10i -> %7.1f MB/s\r", loopNb, dName, (int)benchedSize, (double)benchedSize / bestTime / 1000000);
666
667 /* CRC Checking */
668 crcDecoded = XXH32(orig_buff, benchedSize, 0);
669 if (checkResult && (crcOriginal!=crcDecoded)) {
670 DISPLAY("\n!!! WARNING !!! %14s : Invalid Checksum : %x != %x\n",
671 inFileName, (unsigned)crcOriginal, (unsigned)crcDecoded);
672 exit(1);
673 } }
674
675 DISPLAY("%2i-%-34.34s :%10i -> %7.1f MB/s\n", dAlgNb, dName, (int)benchedSize, (double)benchedSize / bestTime / 1000000);
676 }
677 }
678 free(orig_buff);
679 free(compressed_buff);
680 free(chunkP);
681 }
682
683 LZ4F_freeDecompressionContext(g_dCtx);
684 if (g_pause) { printf("press enter...\n"); (void)getchar(); }
685
686 return 0;
687 }
688
689
usage(const char * exename)690 static int usage(const char* exename)
691 {
692 DISPLAY( "Usage :\n");
693 DISPLAY( " %s [arg] file1 file2 ... fileX\n", exename);
694 DISPLAY( "Arguments :\n");
695 DISPLAY( " -c : compression tests only\n");
696 DISPLAY( " -d : decompression tests only\n");
697 DISPLAY( " -H/-h : Help (this text + advanced options)\n");
698 return 0;
699 }
700
usage_advanced(void)701 static int usage_advanced(void)
702 {
703 DISPLAY( "\nAdvanced options :\n");
704 DISPLAY( " -c# : test only compression function # [1-%i]\n", NB_COMPRESSION_ALGORITHMS);
705 DISPLAY( " -d# : test only decompression function # [1-%i]\n", NB_DECOMPRESSION_ALGORITHMS);
706 DISPLAY( " -i# : iteration loops [1-9](default : %i)\n", NBLOOPS);
707 DISPLAY( " -B# : Block size [4-7](default : 7)\n");
708 return 0;
709 }
710
badusage(const char * exename)711 static int badusage(const char* exename)
712 {
713 DISPLAY("Wrong parameters\n");
714 usage(exename);
715 return 0;
716 }
717
main(int argc,const char ** argv)718 int main(int argc, const char** argv)
719 {
720 int i,
721 filenamesStart=2;
722 const char* exename = argv[0];
723 const char* input_filename=0;
724
725 // Welcome message
726 DISPLAY(WELCOME_MESSAGE);
727
728 if (argc<2) { badusage(exename); return 1; }
729
730 for(i=1; i<argc; i++) {
731 const char* argument = argv[i];
732
733 if(!argument) continue; // Protection if argument empty
734 if (!strcmp(argument, "--no-prompt")) {
735 g_noPrompt = 1;
736 continue;
737 }
738
739 // Decode command (note : aggregated commands are allowed)
740 if (argument[0]=='-') {
741 while (argument[1]!=0) {
742 argument ++;
743
744 switch(argument[0])
745 {
746 // Select compression algorithm only
747 case 'c':
748 g_decompressionTest = 0;
749 while ((argument[1]>= '0') && (argument[1]<= '9')) {
750 g_compressionAlgo *= 10;
751 g_compressionAlgo += argument[1] - '0';
752 argument++;
753 }
754 break;
755
756 // Select decompression algorithm only
757 case 'd':
758 g_compressionTest = 0;
759 while ((argument[1]>= '0') && (argument[1]<= '9')) {
760 g_decompressionAlgo *= 10;
761 g_decompressionAlgo += argument[1] - '0';
762 argument++;
763 }
764 break;
765
766 // Display help on usage
767 case 'h' :
768 case 'H': usage(exename); usage_advanced(); return 0;
769
770 // Modify Block Properties
771 case 'B':
772 while (argument[1]!=0)
773 switch(argument[1])
774 {
775 case '4':
776 case '5':
777 case '6':
778 case '7':
779 { int B = argument[1] - '0';
780 int S = 1 << (8 + 2*B);
781 BMK_setBlocksize(S);
782 argument++;
783 break;
784 }
785 case 'D': argument++; break;
786 default : goto _exit_blockProperties;
787 }
788 _exit_blockProperties:
789 break;
790
791 // Modify Nb Iterations
792 case 'i':
793 if ((argument[1] >='0') && (argument[1] <='9')) {
794 int iters = argument[1] - '0';
795 BMK_setNbIterations(iters);
796 argument++;
797 }
798 break;
799
800 // Pause at the end (hidden option)
801 case 'p': BMK_setPause(); break;
802
803 // Unknown command
804 default : badusage(exename); return 1;
805 }
806 }
807 continue;
808 }
809
810 // first provided filename is input
811 if (!input_filename) { input_filename=argument; filenamesStart=i; continue; }
812
813 }
814
815 // No input filename ==> Error
816 if(!input_filename) { badusage(exename); return 1; }
817
818 return fullSpeedBench(argv+filenamesStart, argc-filenamesStart);
819
820 }
821