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 #include "lz4.h"
46 #include "lz4hc.h"
47 #include "lz4frame.h"
48
49 #include "xxhash.h"
50
51
52 /**************************************
53 * Constants
54 **************************************/
55 #define PROGRAM_DESCRIPTION "LZ4 speed analyzer"
56 #define AUTHOR "Yann Collet"
57 #define WELCOME_MESSAGE "*** %s v%s %i-bits, by %s ***\n", PROGRAM_DESCRIPTION, LZ4_VERSION_STRING, (int)(sizeof(void*)*8), AUTHOR
58
59 #define NBLOOPS 6
60 #define TIMELOOP (CLOCKS_PER_SEC * 25 / 10)
61
62 #define KB *(1 <<10)
63 #define MB *(1 <<20)
64 #define GB *(1U<<30)
65
66 #define KNUTH 2654435761U
67 #define MAX_MEM (1920 MB)
68 #define DEFAULT_CHUNKSIZE (4 MB)
69
70 #define ALL_COMPRESSORS 0
71 #define ALL_DECOMPRESSORS 0
72
73
74 /**************************************
75 * Local structures
76 **************************************/
77 struct chunkParameters
78 {
79 U32 id;
80 char* origBuffer;
81 char* compressedBuffer;
82 int origSize;
83 int compressedSize;
84 };
85
86
87 /**************************************
88 * Macros
89 **************************************/
90 #define DISPLAY(...) fprintf(stderr, __VA_ARGS__)
91 #define PROGRESS(...) g_noPrompt ? 0 : DISPLAY(__VA_ARGS__)
92
93
94 /**************************************
95 * Benchmark Parameters
96 **************************************/
97 static int g_chunkSize = DEFAULT_CHUNKSIZE;
98 static int g_nbIterations = NBLOOPS;
99 static int g_pause = 0;
100 static int g_compressionTest = 1;
101 static int g_compressionAlgo = ALL_COMPRESSORS;
102 static int g_decompressionTest = 1;
103 static int g_decompressionAlgo = ALL_DECOMPRESSORS;
104 static int g_noPrompt = 0;
105
BMK_setBlocksize(int bsize)106 static void BMK_setBlocksize(int bsize)
107 {
108 g_chunkSize = bsize;
109 DISPLAY("-Using Block Size of %i KB-\n", g_chunkSize>>10);
110 }
111
BMK_setNbIterations(int nbLoops)112 static void BMK_setNbIterations(int nbLoops)
113 {
114 g_nbIterations = nbLoops;
115 DISPLAY("- %i iterations -\n", g_nbIterations);
116 }
117
BMK_setPause(void)118 static void BMK_setPause(void)
119 {
120 g_pause = 1;
121 }
122
123
124 /*********************************************************
125 * Private functions
126 *********************************************************/
BMK_GetClockSpan(clock_t clockStart)127 static clock_t BMK_GetClockSpan( clock_t clockStart )
128 {
129 return clock() - clockStart; /* works even if overflow; max span ~30 mn */
130 }
131
132
BMK_findMaxMem(U64 requiredMem)133 static size_t BMK_findMaxMem(U64 requiredMem)
134 {
135 size_t step = 64 MB;
136 BYTE* testmem=NULL;
137
138 requiredMem = (((requiredMem >> 26) + 1) << 26);
139 requiredMem += 2*step;
140 if (requiredMem > MAX_MEM) requiredMem = MAX_MEM;
141
142 while (!testmem) {
143 if (requiredMem > step) requiredMem -= step;
144 else requiredMem >>= 1;
145 testmem = (BYTE*) malloc ((size_t)requiredMem);
146 }
147 free (testmem);
148
149 /* keep some space available */
150 if (requiredMem > step) requiredMem -= step;
151 else requiredMem >>= 1;
152
153 return (size_t)requiredMem;
154 }
155
156
157 /*********************************************************
158 * Benchmark function
159 *********************************************************/
160 static LZ4_stream_t LZ4_stream;
local_LZ4_resetDictT(void)161 static void local_LZ4_resetDictT(void)
162 {
163 LZ4_resetStream(&LZ4_stream);
164 }
165
local_LZ4_createStream(void)166 static void local_LZ4_createStream(void)
167 {
168 LZ4_resetStream(&LZ4_stream);
169 }
170
local_LZ4_saveDict(const char * in,char * out,int inSize)171 static int local_LZ4_saveDict(const char* in, char* out, int inSize)
172 {
173 (void)in;
174 return LZ4_saveDict(&LZ4_stream, out, inSize);
175 }
176
local_LZ4_compress_default_large(const char * in,char * out,int inSize)177 static int local_LZ4_compress_default_large(const char* in, char* out, int inSize)
178 {
179 return LZ4_compress_default(in, out, inSize, LZ4_compressBound(inSize));
180 }
181
local_LZ4_compress_default_small(const char * in,char * out,int inSize)182 static int local_LZ4_compress_default_small(const char* in, char* out, int inSize)
183 {
184 return LZ4_compress_default(in, out, inSize, LZ4_compressBound(inSize)-1);
185 }
186
local_LZ4_compress_destSize(const char * in,char * out,int inSize)187 static int local_LZ4_compress_destSize(const char* in, char* out, int inSize)
188 {
189 return LZ4_compress_destSize(in, out, &inSize, LZ4_compressBound(inSize)-1);
190 }
191
local_LZ4_compress_fast0(const char * in,char * out,int inSize)192 static int local_LZ4_compress_fast0(const char* in, char* out, int inSize)
193 {
194 return LZ4_compress_fast(in, out, inSize, LZ4_compressBound(inSize), 0);
195 }
196
local_LZ4_compress_fast1(const char * in,char * out,int inSize)197 static int local_LZ4_compress_fast1(const char* in, char* out, int inSize)
198 {
199 return LZ4_compress_fast(in, out, inSize, LZ4_compressBound(inSize), 1);
200 }
201
local_LZ4_compress_fast2(const char * in,char * out,int inSize)202 static int local_LZ4_compress_fast2(const char* in, char* out, int inSize)
203 {
204 return LZ4_compress_fast(in, out, inSize, LZ4_compressBound(inSize), 2);
205 }
206
local_LZ4_compress_fast17(const char * in,char * out,int inSize)207 static int local_LZ4_compress_fast17(const char* in, char* out, int inSize)
208 {
209 return LZ4_compress_fast(in, out, inSize, LZ4_compressBound(inSize), 17);
210 }
211
local_LZ4_compress_fast_extState0(const char * in,char * out,int inSize)212 static int local_LZ4_compress_fast_extState0(const char* in, char* out, int inSize)
213 {
214 return LZ4_compress_fast_extState(&LZ4_stream, in, out, inSize, LZ4_compressBound(inSize), 0);
215 }
216
local_LZ4_compress_fast_continue0(const char * in,char * out,int inSize)217 static int local_LZ4_compress_fast_continue0(const char* in, char* out, int inSize)
218 {
219 return LZ4_compress_fast_continue(&LZ4_stream, in, out, inSize, LZ4_compressBound(inSize), 0);
220 }
221
222 #ifndef LZ4_DLL_IMPORT
223 #if defined (__cplusplus)
224 extern "C" {
225 #endif
226
227 /* declare hidden function */
228 extern int LZ4_compress_forceExtDict (LZ4_stream_t* LZ4_stream, const char* source, char* dest, int inputSize);
229
230 #if defined (__cplusplus)
231 }
232 #endif
233
local_LZ4_compress_forceDict(const char * in,char * out,int inSize)234 static int local_LZ4_compress_forceDict(const char* in, char* out, int inSize)
235 {
236 return LZ4_compress_forceExtDict(&LZ4_stream, in, out, inSize);
237 }
238 #endif
239
240
241 /* HC compression functions */
242 LZ4_streamHC_t LZ4_streamHC;
local_LZ4_resetStreamHC(void)243 static void local_LZ4_resetStreamHC(void)
244 {
245 LZ4_resetStreamHC(&LZ4_streamHC, 0);
246 }
247
local_LZ4_saveDictHC(const char * in,char * out,int inSize)248 static int local_LZ4_saveDictHC(const char* in, char* out, int inSize)
249 {
250 (void)in;
251 return LZ4_saveDictHC(&LZ4_streamHC, out, inSize);
252 }
253
local_LZ4_compress_HC(const char * in,char * out,int inSize)254 static int local_LZ4_compress_HC(const char* in, char* out, int inSize)
255 {
256 return LZ4_compress_HC(in, out, inSize, LZ4_compressBound(inSize), 9);
257 }
258
local_LZ4_compress_HC_extStateHC(const char * in,char * out,int inSize)259 static int local_LZ4_compress_HC_extStateHC(const char* in, char* out, int inSize)
260 {
261 return LZ4_compress_HC_extStateHC(&LZ4_streamHC, in, out, inSize, LZ4_compressBound(inSize), 9);
262 }
263
local_LZ4_compress_HC_continue(const char * in,char * out,int inSize)264 static int local_LZ4_compress_HC_continue(const char* in, char* out, int inSize)
265 {
266 return LZ4_compress_HC_continue(&LZ4_streamHC, in, out, inSize, LZ4_compressBound(inSize));
267 }
268
269
270 /* decompression functions */
local_LZ4_decompress_fast(const char * in,char * out,int inSize,int outSize)271 static int local_LZ4_decompress_fast(const char* in, char* out, int inSize, int outSize)
272 {
273 (void)inSize;
274 LZ4_decompress_fast(in, out, outSize);
275 return outSize;
276 }
277
local_LZ4_decompress_fast_usingDict_prefix(const char * in,char * out,int inSize,int outSize)278 static int local_LZ4_decompress_fast_usingDict_prefix(const char* in, char* out, int inSize, int outSize)
279 {
280 (void)inSize;
281 LZ4_decompress_fast_usingDict(in, out, outSize, out - 65536, 65536);
282 return outSize;
283 }
284
local_LZ4_decompress_fast_usingExtDict(const char * in,char * out,int inSize,int outSize)285 static int local_LZ4_decompress_fast_usingExtDict(const char* in, char* out, int inSize, int outSize)
286 {
287 (void)inSize;
288 LZ4_decompress_fast_usingDict(in, out, outSize, out - 65536, 65535);
289 return outSize;
290 }
291
local_LZ4_decompress_safe_usingDict(const char * in,char * out,int inSize,int outSize)292 static int local_LZ4_decompress_safe_usingDict(const char* in, char* out, int inSize, int outSize)
293 {
294 (void)inSize;
295 LZ4_decompress_safe_usingDict(in, out, inSize, outSize, out - 65536, 65536);
296 return outSize;
297 }
298
299 #ifndef LZ4_DLL_IMPORT
300 #if defined (__cplusplus)
301 extern "C" {
302 #endif
303
304 extern int LZ4_decompress_safe_forceExtDict(const char* in, char* out, int inSize, int outSize, const void* dict, size_t dictSize);
305
306 #if defined (__cplusplus)
307 }
308 #endif
309
local_LZ4_decompress_safe_forceExtDict(const char * in,char * out,int inSize,int outSize)310 static int local_LZ4_decompress_safe_forceExtDict(const char* in, char* out, int inSize, int outSize)
311 {
312 (void)inSize;
313 LZ4_decompress_safe_forceExtDict(in, out, inSize, outSize, out - 65536, 65536);
314 return outSize;
315 }
316 #endif
317
local_LZ4_decompress_safe_partial(const char * in,char * out,int inSize,int outSize)318 static int local_LZ4_decompress_safe_partial(const char* in, char* out, int inSize, int outSize)
319 {
320 int result = LZ4_decompress_safe_partial(in, out, inSize, outSize - 5, outSize);
321 if (result < 0) return result;
322 return outSize;
323 }
324
325
326 /* frame functions */
local_LZ4F_compressFrame(const char * in,char * out,int inSize)327 static int local_LZ4F_compressFrame(const char* in, char* out, int inSize)
328 {
329 return (int)LZ4F_compressFrame(out, LZ4F_compressFrameBound(inSize, NULL), in, inSize, NULL);
330 }
331
332 static LZ4F_decompressionContext_t g_dCtx;
333
local_LZ4F_decompress(const char * in,char * out,int inSize,int outSize)334 static int local_LZ4F_decompress(const char* in, char* out, int inSize, int outSize)
335 {
336 size_t srcSize = inSize;
337 size_t dstSize = outSize;
338 size_t result;
339 result = LZ4F_decompress(g_dCtx, out, &dstSize, in, &srcSize, NULL);
340 if (result!=0) { DISPLAY("Error decompressing frame : unfinished frame\n"); exit(8); }
341 if (srcSize != (size_t)inSize) { DISPLAY("Error decompressing frame : read size incorrect\n"); exit(9); }
342 return (int)dstSize;
343 }
344
345
346 #define NB_COMPRESSION_ALGORITHMS 100
347 #define NB_DECOMPRESSION_ALGORITHMS 100
fullSpeedBench(const char ** fileNamesTable,int nbFiles)348 int fullSpeedBench(const char** fileNamesTable, int nbFiles)
349 {
350 int fileIdx=0;
351
352 /* Init */
353 { size_t const errorCode = LZ4F_createDecompressionContext(&g_dCtx, LZ4F_VERSION);
354 if (LZ4F_isError(errorCode)) { DISPLAY("dctx allocation issue \n"); return 10; } }
355
356 /* Loop for each fileName */
357 while (fileIdx<nbFiles) {
358 char* orig_buff = NULL;
359 struct chunkParameters* chunkP = NULL;
360 char* compressed_buff=NULL;
361 const char* const inFileName = fileNamesTable[fileIdx++];
362 FILE* const inFile = fopen( inFileName, "rb" );
363 U64 inFileSize;
364 size_t benchedSize;
365 int nbChunks;
366 int maxCompressedChunkSize;
367 size_t readSize;
368 int compressedBuffSize;
369 U32 crcOriginal;
370 size_t errorCode;
371
372 /* Check file existence */
373 if (inFile==NULL) { DISPLAY( "Pb opening %s\n", inFileName); return 11; }
374
375 /* Memory size adjustments */
376 inFileSize = UTIL_getFileSize(inFileName);
377 if (inFileSize==0) { DISPLAY( "file is empty\n"); fclose(inFile); return 11; }
378 benchedSize = BMK_findMaxMem(inFileSize*2) / 2; /* because 2 buffers */
379 if (benchedSize==0) { DISPLAY( "not enough memory\n"); fclose(inFile); return 11; }
380 if ((U64)benchedSize > inFileSize) benchedSize = (size_t)inFileSize;
381 if (benchedSize < inFileSize)
382 DISPLAY("Not enough memory for '%s' full size; testing %i MB only...\n", inFileName, (int)(benchedSize>>20));
383
384 /* Allocation */
385 chunkP = (struct chunkParameters*) malloc(((benchedSize / (size_t)g_chunkSize)+1) * sizeof(struct chunkParameters));
386 orig_buff = (char*) malloc(benchedSize);
387 nbChunks = (int) ((benchedSize + (g_chunkSize-1)) / g_chunkSize);
388 maxCompressedChunkSize = LZ4_compressBound(g_chunkSize);
389 compressedBuffSize = nbChunks * maxCompressedChunkSize;
390 compressed_buff = (char*)malloc((size_t)compressedBuffSize);
391 if(!chunkP || !orig_buff || !compressed_buff) {
392 DISPLAY("\nError: not enough memory!\n");
393 fclose(inFile);
394 free(orig_buff);
395 free(compressed_buff);
396 free(chunkP);
397 return(12);
398 }
399
400 /* Fill in src buffer */
401 DISPLAY("Loading %s... \r", inFileName);
402 readSize = fread(orig_buff, 1, benchedSize, inFile);
403 fclose(inFile);
404
405 if (readSize != benchedSize) {
406 DISPLAY("\nError: problem reading file '%s' !! \n", inFileName);
407 free(orig_buff);
408 free(compressed_buff);
409 free(chunkP);
410 return 13;
411 }
412
413 /* Calculating input Checksum */
414 crcOriginal = XXH32(orig_buff, benchedSize,0);
415
416
417 /* Bench */
418 { int loopNb, nb_loops, chunkNb, cAlgNb, dAlgNb;
419 size_t cSize=0;
420 double ratio=0.;
421
422 DISPLAY("\r%79s\r", "");
423 DISPLAY(" %s : \n", inFileName);
424
425 /* Bench Compression Algorithms */
426 for (cAlgNb=0; (cAlgNb <= NB_COMPRESSION_ALGORITHMS) && (g_compressionTest); cAlgNb++) {
427 const char* compressorName;
428 int (*compressionFunction)(const char*, char*, int);
429 void (*initFunction)(void) = NULL;
430 double bestTime = 100000000.;
431
432 /* filter compressionAlgo only */
433 if ((g_compressionAlgo != ALL_COMPRESSORS) && (g_compressionAlgo != cAlgNb)) continue;
434
435 /* Init data chunks */
436 { int i;
437 size_t remaining = benchedSize;
438 char* in = orig_buff;
439 char* out = compressed_buff;
440 nbChunks = (int) (((int)benchedSize + (g_chunkSize-1))/ g_chunkSize);
441 for (i=0; i<nbChunks; i++) {
442 chunkP[i].id = i;
443 chunkP[i].origBuffer = in; in += g_chunkSize;
444 if ((int)remaining > g_chunkSize) { chunkP[i].origSize = g_chunkSize; remaining -= g_chunkSize; } else { chunkP[i].origSize = (int)remaining; remaining = 0; }
445 chunkP[i].compressedBuffer = out; out += maxCompressedChunkSize;
446 chunkP[i].compressedSize = 0;
447 }
448 }
449
450 switch(cAlgNb)
451 {
452 case 0 : DISPLAY("Compression functions : \n"); continue;
453 case 1 : compressionFunction = local_LZ4_compress_default_large; compressorName = "LZ4_compress_default"; break;
454 case 2 : compressionFunction = local_LZ4_compress_default_small; compressorName = "LZ4_compress_default(small dst)"; break;
455 case 3 : compressionFunction = local_LZ4_compress_destSize; compressorName = "LZ4_compress_destSize"; break;
456 case 4 : compressionFunction = local_LZ4_compress_fast0; compressorName = "LZ4_compress_fast(0)"; break;
457 case 5 : compressionFunction = local_LZ4_compress_fast1; compressorName = "LZ4_compress_fast(1)"; break;
458 case 6 : compressionFunction = local_LZ4_compress_fast2; compressorName = "LZ4_compress_fast(2)"; break;
459 case 7 : compressionFunction = local_LZ4_compress_fast17; compressorName = "LZ4_compress_fast(17)"; break;
460 case 8 : compressionFunction = local_LZ4_compress_fast_extState0; compressorName = "LZ4_compress_fast_extState(0)"; break;
461 case 9 : compressionFunction = local_LZ4_compress_fast_continue0; initFunction = local_LZ4_createStream; compressorName = "LZ4_compress_fast_continue(0)"; break;
462
463 case 10: compressionFunction = local_LZ4_compress_HC; compressorName = "LZ4_compress_HC"; break;
464 case 12: compressionFunction = local_LZ4_compress_HC_extStateHC; compressorName = "LZ4_compress_HC_extStateHC"; break;
465 case 14: compressionFunction = local_LZ4_compress_HC_continue; initFunction = local_LZ4_resetStreamHC; compressorName = "LZ4_compress_HC_continue"; break;
466 #ifndef LZ4_DLL_IMPORT
467 case 20: compressionFunction = local_LZ4_compress_forceDict; initFunction = local_LZ4_resetDictT; compressorName = "LZ4_compress_forceDict"; break;
468 #endif
469 case 30: compressionFunction = local_LZ4F_compressFrame; compressorName = "LZ4F_compressFrame";
470 chunkP[0].origSize = (int)benchedSize; nbChunks=1;
471 break;
472 case 40: compressionFunction = local_LZ4_saveDict; compressorName = "LZ4_saveDict";
473 if (chunkP[0].origSize < 8) { DISPLAY(" cannot bench %s with less then 8 bytes \n", compressorName); continue; }
474 LZ4_loadDict(&LZ4_stream, chunkP[0].origBuffer, chunkP[0].origSize);
475 break;
476 case 41: compressionFunction = local_LZ4_saveDictHC; compressorName = "LZ4_saveDictHC";
477 if (chunkP[0].origSize < 8) { DISPLAY(" cannot bench %s with less then 8 bytes \n", compressorName); continue; }
478 LZ4_loadDictHC(&LZ4_streamHC, chunkP[0].origBuffer, chunkP[0].origSize);
479 break;
480 default :
481 continue; /* unknown ID : just skip */
482 }
483
484 for (loopNb = 1; loopNb <= g_nbIterations; loopNb++) {
485 double averageTime;
486 clock_t clockTime;
487
488 PROGRESS("%2i-%-34.34s :%10i ->\r", loopNb, compressorName, (int)benchedSize);
489 { size_t i; for (i=0; i<benchedSize; i++) compressed_buff[i]=(char)i; } /* warming up memory */
490
491 nb_loops = 0;
492 clockTime = clock();
493 while(clock() == clockTime);
494 clockTime = clock();
495 while(BMK_GetClockSpan(clockTime) < TIMELOOP) {
496 if (initFunction!=NULL) initFunction();
497 for (chunkNb=0; chunkNb<nbChunks; chunkNb++) {
498 chunkP[chunkNb].compressedSize = compressionFunction(chunkP[chunkNb].origBuffer, chunkP[chunkNb].compressedBuffer, chunkP[chunkNb].origSize);
499 if (chunkP[chunkNb].compressedSize==0)
500 DISPLAY("ERROR ! %s() = 0 !! \n", compressorName), exit(1);
501 }
502 nb_loops++;
503 }
504 clockTime = BMK_GetClockSpan(clockTime);
505
506 nb_loops += !nb_loops; /* avoid division by zero */
507 averageTime = ((double)clockTime) / nb_loops / CLOCKS_PER_SEC;
508 if (averageTime < bestTime) bestTime = averageTime;
509 cSize=0; for (chunkNb=0; chunkNb<nbChunks; chunkNb++) cSize += chunkP[chunkNb].compressedSize;
510 ratio = (double)cSize/(double)benchedSize*100.;
511 PROGRESS("%2i-%-34.34s :%10i ->%9i (%5.2f%%),%7.1f MB/s\r", loopNb, compressorName, (int)benchedSize, (int)cSize, ratio, (double)benchedSize / bestTime / 1000000);
512 }
513
514 if (ratio<100.)
515 DISPLAY("%2i-%-34.34s :%10i ->%9i (%5.2f%%),%7.1f MB/s\n", cAlgNb, compressorName, (int)benchedSize, (int)cSize, ratio, (double)benchedSize / bestTime / 1000000);
516 else
517 DISPLAY("%2i-%-34.34s :%10i ->%9i (%5.1f%%),%7.1f MB/s\n", cAlgNb, compressorName, (int)benchedSize, (int)cSize, ratio, (double)benchedSize / bestTime / 100000);
518 }
519
520 /* Prepare layout for decompression */
521 /* Init data chunks */
522 { int i;
523 size_t remaining = benchedSize;
524 char* in = orig_buff;
525 char* out = compressed_buff;
526
527 nbChunks = (int) (((int)benchedSize + (g_chunkSize-1))/ g_chunkSize);
528 for (i=0; i<nbChunks; i++) {
529 chunkP[i].id = i;
530 chunkP[i].origBuffer = in; in += g_chunkSize;
531 if ((int)remaining > g_chunkSize) { chunkP[i].origSize = g_chunkSize; remaining -= g_chunkSize; } else { chunkP[i].origSize = (int)remaining; remaining = 0; }
532 chunkP[i].compressedBuffer = out; out += maxCompressedChunkSize;
533 chunkP[i].compressedSize = 0;
534 }
535 }
536 for (chunkNb=0; chunkNb<nbChunks; chunkNb++) {
537 chunkP[chunkNb].compressedSize = LZ4_compress_default(chunkP[chunkNb].origBuffer, chunkP[chunkNb].compressedBuffer, chunkP[chunkNb].origSize, maxCompressedChunkSize);
538 if (chunkP[chunkNb].compressedSize==0)
539 DISPLAY("ERROR ! %s() = 0 !! \n", "LZ4_compress"), exit(1);
540 }
541
542 /* Decompression Algorithms */
543 for (dAlgNb=0; (dAlgNb <= NB_DECOMPRESSION_ALGORITHMS) && g_decompressionTest; dAlgNb++) {
544 const char* dName;
545 int (*decompressionFunction)(const char*, char*, int, int);
546 double bestTime = 100000000.;
547 int checkResult = 1;
548
549 if ((g_decompressionAlgo != ALL_DECOMPRESSORS) && (g_decompressionAlgo != dAlgNb)) continue;
550
551 switch(dAlgNb)
552 {
553 case 0: DISPLAY("Decompression functions : \n"); continue;
554 case 1: decompressionFunction = local_LZ4_decompress_fast; dName = "LZ4_decompress_fast"; break;
555 case 2: decompressionFunction = local_LZ4_decompress_fast_usingDict_prefix; dName = "LZ4_decompress_fast_usingDict(prefix)"; break;
556 case 3: decompressionFunction = local_LZ4_decompress_fast_usingExtDict; dName = "LZ4_decompress_fast_using(Ext)Dict"; break;
557 case 4: decompressionFunction = LZ4_decompress_safe; dName = "LZ4_decompress_safe"; break;
558 case 6: decompressionFunction = local_LZ4_decompress_safe_usingDict; dName = "LZ4_decompress_safe_usingDict"; break;
559 case 7: decompressionFunction = local_LZ4_decompress_safe_partial; dName = "LZ4_decompress_safe_partial"; checkResult = 0; break;
560 #ifndef LZ4_DLL_IMPORT
561 case 8: decompressionFunction = local_LZ4_decompress_safe_forceExtDict; dName = "LZ4_decompress_safe_forceExtDict"; break;
562 #endif
563 case 9: decompressionFunction = local_LZ4F_decompress; dName = "LZ4F_decompress";
564 errorCode = LZ4F_compressFrame(compressed_buff, compressedBuffSize, orig_buff, benchedSize, NULL);
565 if (LZ4F_isError(errorCode)) {
566 DISPLAY("Error while preparing compressed frame\n");
567 free(orig_buff);
568 free(compressed_buff);
569 free(chunkP);
570 return 1;
571 }
572 chunkP[0].origSize = (int)benchedSize;
573 chunkP[0].compressedSize = (int)errorCode;
574 nbChunks = 1;
575 break;
576 default :
577 continue; /* skip if unknown ID */
578 }
579
580 { size_t i; for (i=0; i<benchedSize; i++) orig_buff[i]=0; } /* zeroing source area, for CRC checking */
581
582 for (loopNb = 1; loopNb <= g_nbIterations; loopNb++) {
583 double averageTime;
584 clock_t clockTime;
585 U32 crcDecoded;
586
587 PROGRESS("%2i-%-34.34s :%10i ->\r", loopNb, dName, (int)benchedSize);
588
589 nb_loops = 0;
590 clockTime = clock();
591 while(clock() == clockTime);
592 clockTime = clock();
593 while(BMK_GetClockSpan(clockTime) < TIMELOOP) {
594 for (chunkNb=0; chunkNb<nbChunks; chunkNb++) {
595 int const decodedSize = decompressionFunction(chunkP[chunkNb].compressedBuffer, chunkP[chunkNb].origBuffer,
596 chunkP[chunkNb].compressedSize, chunkP[chunkNb].origSize);
597 if (chunkP[chunkNb].origSize != decodedSize) {
598 DISPLAY("ERROR ! %s() == %i != %i !! \n",
599 dName, decodedSize, chunkP[chunkNb].origSize);
600 exit(1);
601 } }
602 nb_loops++;
603 }
604 clockTime = BMK_GetClockSpan(clockTime);
605
606 nb_loops += !nb_loops; /* Avoid division by zero */
607 averageTime = (double)clockTime / nb_loops / CLOCKS_PER_SEC;
608 if (averageTime < bestTime) bestTime = averageTime;
609
610 PROGRESS("%2i-%-34.34s :%10i -> %7.1f MB/s\r", loopNb, dName, (int)benchedSize, (double)benchedSize / bestTime / 1000000);
611
612 /* CRC Checking */
613 crcDecoded = XXH32(orig_buff, (int)benchedSize, 0);
614 if (checkResult && (crcOriginal!=crcDecoded)) {
615 DISPLAY("\n!!! WARNING !!! %14s : Invalid Checksum : %x != %x\n",
616 inFileName, (unsigned)crcOriginal, (unsigned)crcDecoded);
617 exit(1);
618 } }
619
620 DISPLAY("%2i-%-34.34s :%10i -> %7.1f MB/s\n", dAlgNb, dName, (int)benchedSize, (double)benchedSize / bestTime / 1000000);
621 }
622 }
623 free(orig_buff);
624 free(compressed_buff);
625 free(chunkP);
626 }
627
628 LZ4F_freeDecompressionContext(g_dCtx);
629 if (g_pause) { printf("press enter...\n"); (void)getchar(); }
630
631 return 0;
632 }
633
634
usage(const char * exename)635 static int usage(const char* exename)
636 {
637 DISPLAY( "Usage :\n");
638 DISPLAY( " %s [arg] file1 file2 ... fileX\n", exename);
639 DISPLAY( "Arguments :\n");
640 DISPLAY( " -c : compression tests only\n");
641 DISPLAY( " -d : decompression tests only\n");
642 DISPLAY( " -H/-h : Help (this text + advanced options)\n");
643 return 0;
644 }
645
usage_advanced(void)646 static int usage_advanced(void)
647 {
648 DISPLAY( "\nAdvanced options :\n");
649 DISPLAY( " -c# : test only compression function # [1-%i]\n", NB_COMPRESSION_ALGORITHMS);
650 DISPLAY( " -d# : test only decompression function # [1-%i]\n", NB_DECOMPRESSION_ALGORITHMS);
651 DISPLAY( " -i# : iteration loops [1-9](default : %i)\n", NBLOOPS);
652 DISPLAY( " -B# : Block size [4-7](default : 7)\n");
653 return 0;
654 }
655
badusage(const char * exename)656 static int badusage(const char* exename)
657 {
658 DISPLAY("Wrong parameters\n");
659 usage(exename);
660 return 0;
661 }
662
main(int argc,const char ** argv)663 int main(int argc, const char** argv)
664 {
665 int i,
666 filenamesStart=2;
667 const char* exename = argv[0];
668 const char* input_filename=0;
669
670 // Welcome message
671 DISPLAY(WELCOME_MESSAGE);
672
673 if (argc<2) { badusage(exename); return 1; }
674
675 for(i=1; i<argc; i++) {
676 const char* argument = argv[i];
677
678 if(!argument) continue; // Protection if argument empty
679 if (!strcmp(argument, "--no-prompt")) {
680 g_noPrompt = 1;
681 continue;
682 }
683
684 // Decode command (note : aggregated commands are allowed)
685 if (argument[0]=='-') {
686 while (argument[1]!=0) {
687 argument ++;
688
689 switch(argument[0])
690 {
691 // Select compression algorithm only
692 case 'c':
693 g_decompressionTest = 0;
694 while ((argument[1]>= '0') && (argument[1]<= '9')) {
695 g_compressionAlgo *= 10;
696 g_compressionAlgo += argument[1] - '0';
697 argument++;
698 }
699 break;
700
701 // Select decompression algorithm only
702 case 'd':
703 g_compressionTest = 0;
704 while ((argument[1]>= '0') && (argument[1]<= '9')) {
705 g_decompressionAlgo *= 10;
706 g_decompressionAlgo += argument[1] - '0';
707 argument++;
708 }
709 break;
710
711 // Display help on usage
712 case 'h' :
713 case 'H': usage(exename); usage_advanced(); return 0;
714
715 // Modify Block Properties
716 case 'B':
717 while (argument[1]!=0)
718 switch(argument[1])
719 {
720 case '4':
721 case '5':
722 case '6':
723 case '7':
724 { int B = argument[1] - '0';
725 int S = 1 << (8 + 2*B);
726 BMK_setBlocksize(S);
727 argument++;
728 break;
729 }
730 case 'D': argument++; break;
731 default : goto _exit_blockProperties;
732 }
733 _exit_blockProperties:
734 break;
735
736 // Modify Nb Iterations
737 case 'i':
738 if ((argument[1] >='0') && (argument[1] <='9')) {
739 int iters = argument[1] - '0';
740 BMK_setNbIterations(iters);
741 argument++;
742 }
743 break;
744
745 // Pause at the end (hidden option)
746 case 'p': BMK_setPause(); break;
747
748 // Unknown command
749 default : badusage(exename); return 1;
750 }
751 }
752 continue;
753 }
754
755 // first provided filename is input
756 if (!input_filename) { input_filename=argument; filenamesStart=i; continue; }
757
758 }
759
760 // No input filename ==> Error
761 if(!input_filename) { badusage(exename); return 1; }
762
763 return fullSpeedBench(argv+filenamesStart, argc-filenamesStart);
764
765 }
766