1 /* 2 bench.c - Demo program to benchmark open-source compression algorithm 3 Copyright (C) Yann Collet 2012-2014 4 GPL v2 License 5 6 This program is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 2 of the License, or 9 (at your option) any later version. 10 11 This program is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 GNU General Public License for more details. 15 16 You should have received a copy of the GNU General Public License along 17 with this program; if not, write to the Free Software Foundation, Inc., 18 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 19 20 You can contact the author at : 21 - LZ4 homepage : http://fastcompression.blogspot.com/p/lz4.html 22 - LZ4 source repository : http://code.google.com/p/lz4/ 23 */ 24 25 /************************************** 26 * Compiler Options 27 ***************************************/ 28 /* Disable some Visual warning messages */ 29 #define _CRT_SECURE_NO_WARNINGS 30 #define _CRT_SECURE_NO_DEPRECATE /* VS2005 */ 31 32 /* Unix Large Files support (>4GB) */ 33 #define _FILE_OFFSET_BITS 64 34 #if (defined(__sun__) && (!defined(__LP64__))) /* Sun Solaris 32-bits requires specific definitions */ 35 # define _LARGEFILE_SOURCE 36 #elif ! defined(__LP64__) /* No point defining Large file for 64 bit */ 37 # define _LARGEFILE64_SOURCE 38 #endif 39 40 /* S_ISREG & gettimeofday() are not supported by MSVC */ 41 #if defined(_MSC_VER) || defined(_WIN32) 42 # define BMK_LEGACY_TIMER 1 43 #endif 44 45 46 /************************************** 47 * Includes 48 ***************************************/ 49 #include <stdlib.h> /* malloc */ 50 #include <stdio.h> /* fprintf, fopen, ftello64 */ 51 #include <sys/types.h> /* stat64 */ 52 #include <sys/stat.h> /* stat64 */ 53 54 /* Use ftime() if gettimeofday() is not available on your target */ 55 #if defined(BMK_LEGACY_TIMER) 56 # include <sys/timeb.h> /* timeb, ftime */ 57 #else 58 # include <sys/time.h> /* gettimeofday */ 59 #endif 60 61 #include "lz4.h" 62 #define COMPRESSOR0 LZ4_compress_local 63 static int LZ4_compress_local(const char* src, char* dst, int size, int clevel) { (void)clevel; return LZ4_compress(src, dst, size); } 64 #include "lz4hc.h" 65 #define COMPRESSOR1 LZ4_compressHC2 66 #define DEFAULTCOMPRESSOR COMPRESSOR0 67 68 #include "xxhash.h" 69 70 71 /************************************** 72 * Compiler specifics 73 ***************************************/ 74 #if !defined(S_ISREG) 75 # define S_ISREG(x) (((x) & S_IFMT) == S_IFREG) 76 #endif 77 78 79 /************************************** 80 * Basic Types 81 ***************************************/ 82 #if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L /* C99 */ 83 # include <stdint.h> 84 typedef uint8_t BYTE; 85 typedef uint16_t U16; 86 typedef uint32_t U32; 87 typedef int32_t S32; 88 typedef uint64_t U64; 89 #else 90 typedef unsigned char BYTE; 91 typedef unsigned short U16; 92 typedef unsigned int U32; 93 typedef signed int S32; 94 typedef unsigned long long U64; 95 #endif 96 97 98 /************************************** 99 * Constants 100 ***************************************/ 101 #define NBLOOPS 3 102 #define TIMELOOP 2000 103 104 #define KB *(1 <<10) 105 #define MB *(1 <<20) 106 #define GB *(1U<<30) 107 108 #define MAX_MEM (2 GB - 64 MB) 109 #define DEFAULT_CHUNKSIZE (4 MB) 110 111 112 /************************************** 113 * Local structures 114 ***************************************/ 115 struct chunkParameters 116 { 117 U32 id; 118 char* origBuffer; 119 char* compressedBuffer; 120 int origSize; 121 int compressedSize; 122 }; 123 124 struct compressionParameters 125 { 126 int (*compressionFunction)(const char*, char*, int, int); 127 int (*decompressionFunction)(const char*, char*, int); 128 }; 129 130 131 /************************************** 132 * MACRO 133 ***************************************/ 134 #define DISPLAY(...) fprintf(stderr, __VA_ARGS__) 135 136 137 /************************************** 138 * Benchmark Parameters 139 ***************************************/ 140 static int chunkSize = DEFAULT_CHUNKSIZE; 141 static int nbIterations = NBLOOPS; 142 static int BMK_pause = 0; 143 144 void BMK_SetBlocksize(int bsize) { chunkSize = bsize; } 145 146 void BMK_SetNbIterations(int nbLoops) 147 { 148 nbIterations = nbLoops; 149 DISPLAY("- %i iterations -\n", nbIterations); 150 } 151 152 void BMK_SetPause(void) { BMK_pause = 1; } 153 154 155 /********************************************************* 156 * Private functions 157 **********************************************************/ 158 159 #if defined(BMK_LEGACY_TIMER) 160 161 static int BMK_GetMilliStart(void) 162 { 163 /* Based on Legacy ftime() 164 Rolls over every ~ 12.1 days (0x100000/24/60/60) 165 Use GetMilliSpan to correct for rollover */ 166 struct timeb tb; 167 int nCount; 168 ftime( &tb ); 169 nCount = (int) (tb.millitm + (tb.time & 0xfffff) * 1000); 170 return nCount; 171 } 172 173 #else 174 175 static int BMK_GetMilliStart(void) 176 { 177 /* Based on newer gettimeofday() 178 Use GetMilliSpan to correct for rollover */ 179 struct timeval tv; 180 int nCount; 181 gettimeofday(&tv, NULL); 182 nCount = (int) (tv.tv_usec/1000 + (tv.tv_sec & 0xfffff) * 1000); 183 return nCount; 184 } 185 186 #endif 187 188 189 static int BMK_GetMilliSpan( int nTimeStart ) 190 { 191 int nSpan = BMK_GetMilliStart() - nTimeStart; 192 if ( nSpan < 0 ) 193 nSpan += 0x100000 * 1000; 194 return nSpan; 195 } 196 197 198 static size_t BMK_findMaxMem(U64 requiredMem) 199 { 200 size_t step = 64 MB; 201 BYTE* testmem=NULL; 202 203 requiredMem = (((requiredMem >> 26) + 1) << 26); 204 requiredMem += 2*step; 205 if (requiredMem > MAX_MEM) requiredMem = MAX_MEM; 206 207 while (!testmem) 208 { 209 requiredMem -= step; 210 testmem = (BYTE*) malloc ((size_t)requiredMem); 211 } 212 213 free (testmem); 214 return (size_t) (requiredMem - step); 215 } 216 217 218 static U64 BMK_GetFileSize(char* infilename) 219 { 220 int r; 221 #if defined(_MSC_VER) 222 struct _stat64 statbuf; 223 r = _stat64(infilename, &statbuf); 224 #else 225 struct stat statbuf; 226 r = stat(infilename, &statbuf); 227 #endif 228 if (r || !S_ISREG(statbuf.st_mode)) return 0; /* No good... */ 229 return (U64)statbuf.st_size; 230 } 231 232 233 /********************************************************* 234 * Public function 235 **********************************************************/ 236 237 int BMK_benchFile(char** fileNamesTable, int nbFiles, int cLevel) 238 { 239 int fileIdx=0; 240 char* orig_buff; 241 struct compressionParameters compP; 242 int cfunctionId; 243 244 U64 totals = 0; 245 U64 totalz = 0; 246 double totalc = 0.; 247 double totald = 0.; 248 249 250 /* Init */ 251 if (cLevel <= 3) cfunctionId = 0; else cfunctionId = 1; 252 switch (cfunctionId) 253 { 254 #ifdef COMPRESSOR0 255 case 0 : compP.compressionFunction = COMPRESSOR0; break; 256 #endif 257 #ifdef COMPRESSOR1 258 case 1 : compP.compressionFunction = COMPRESSOR1; break; 259 #endif 260 default : compP.compressionFunction = DEFAULTCOMPRESSOR; 261 } 262 compP.decompressionFunction = LZ4_decompress_fast; 263 264 /* Loop for each file */ 265 while (fileIdx<nbFiles) 266 { 267 FILE* inFile; 268 char* inFileName; 269 U64 inFileSize; 270 size_t benchedSize; 271 int nbChunks; 272 int maxCompressedChunkSize; 273 size_t readSize; 274 char* compressedBuffer; int compressedBuffSize; 275 struct chunkParameters* chunkP; 276 U32 crcOrig; 277 278 /* Check file existence */ 279 inFileName = fileNamesTable[fileIdx++]; 280 inFile = fopen( inFileName, "rb" ); 281 if (inFile==NULL) 282 { 283 DISPLAY( "Pb opening %s\n", inFileName); 284 return 11; 285 } 286 287 /* Memory allocation & restrictions */ 288 inFileSize = BMK_GetFileSize(inFileName); 289 benchedSize = (size_t) BMK_findMaxMem(inFileSize * 2) / 2; 290 if ((U64)benchedSize > inFileSize) benchedSize = (size_t)inFileSize; 291 if (benchedSize < inFileSize) 292 { 293 DISPLAY("Not enough memory for '%s' full size; testing %i MB only...\n", inFileName, (int)(benchedSize>>20)); 294 } 295 296 /* Alloc */ 297 chunkP = (struct chunkParameters*) malloc(((benchedSize / (size_t)chunkSize)+1) * sizeof(struct chunkParameters)); 298 orig_buff = (char*)malloc((size_t )benchedSize); 299 nbChunks = (int) ((int)benchedSize / chunkSize) + 1; 300 maxCompressedChunkSize = LZ4_compressBound(chunkSize); 301 compressedBuffSize = nbChunks * maxCompressedChunkSize; 302 compressedBuffer = (char*)malloc((size_t )compressedBuffSize); 303 304 305 if (!orig_buff || !compressedBuffer) 306 { 307 DISPLAY("\nError: not enough memory!\n"); 308 free(orig_buff); 309 free(compressedBuffer); 310 free(chunkP); 311 fclose(inFile); 312 return 12; 313 } 314 315 /* Init chunks data */ 316 { 317 int i; 318 size_t remaining = benchedSize; 319 char* in = orig_buff; 320 char* out = compressedBuffer; 321 for (i=0; i<nbChunks; i++) 322 { 323 chunkP[i].id = i; 324 chunkP[i].origBuffer = in; in += chunkSize; 325 if ((int)remaining > chunkSize) { chunkP[i].origSize = chunkSize; remaining -= chunkSize; } else { chunkP[i].origSize = (int)remaining; remaining = 0; } 326 chunkP[i].compressedBuffer = out; out += maxCompressedChunkSize; 327 chunkP[i].compressedSize = 0; 328 } 329 } 330 331 /* Fill input buffer */ 332 DISPLAY("Loading %s... \r", inFileName); 333 readSize = fread(orig_buff, 1, benchedSize, inFile); 334 fclose(inFile); 335 336 if (readSize != benchedSize) 337 { 338 DISPLAY("\nError: problem reading file '%s' !! \n", inFileName); 339 free(orig_buff); 340 free(compressedBuffer); 341 free(chunkP); 342 return 13; 343 } 344 345 /* Calculating input Checksum */ 346 crcOrig = XXH32(orig_buff, (unsigned int)benchedSize,0); 347 348 349 /* Bench */ 350 { 351 int loopNb, chunkNb; 352 size_t cSize=0; 353 double fastestC = 100000000., fastestD = 100000000.; 354 double ratio=0.; 355 U32 crcCheck=0; 356 357 DISPLAY("\r%79s\r", ""); 358 for (loopNb = 1; loopNb <= nbIterations; loopNb++) 359 { 360 int nbLoops; 361 int milliTime; 362 363 /* Compression */ 364 DISPLAY("%1i-%-14.14s : %9i ->\r", loopNb, inFileName, (int)benchedSize); 365 { size_t i; for (i=0; i<benchedSize; i++) compressedBuffer[i]=(char)i; } /* warmimg up memory */ 366 367 nbLoops = 0; 368 milliTime = BMK_GetMilliStart(); 369 while(BMK_GetMilliStart() == milliTime); 370 milliTime = BMK_GetMilliStart(); 371 while(BMK_GetMilliSpan(milliTime) < TIMELOOP) 372 { 373 for (chunkNb=0; chunkNb<nbChunks; chunkNb++) 374 chunkP[chunkNb].compressedSize = compP.compressionFunction(chunkP[chunkNb].origBuffer, chunkP[chunkNb].compressedBuffer, chunkP[chunkNb].origSize, cLevel); 375 nbLoops++; 376 } 377 milliTime = BMK_GetMilliSpan(milliTime); 378 379 if ((double)milliTime < fastestC*nbLoops) fastestC = (double)milliTime/nbLoops; 380 cSize=0; for (chunkNb=0; chunkNb<nbChunks; chunkNb++) cSize += chunkP[chunkNb].compressedSize; 381 ratio = (double)cSize/(double)benchedSize*100.; 382 383 DISPLAY("%1i-%-14.14s : %9i -> %9i (%5.2f%%),%7.1f MB/s\r", loopNb, inFileName, (int)benchedSize, (int)cSize, ratio, (double)benchedSize / fastestC / 1000.); 384 385 /* Decompression */ 386 { size_t i; for (i=0; i<benchedSize; i++) orig_buff[i]=0; } /* zeroing area, for CRC checking */ 387 388 nbLoops = 0; 389 milliTime = BMK_GetMilliStart(); 390 while(BMK_GetMilliStart() == milliTime); 391 milliTime = BMK_GetMilliStart(); 392 while(BMK_GetMilliSpan(milliTime) < TIMELOOP) 393 { 394 for (chunkNb=0; chunkNb<nbChunks; chunkNb++) 395 chunkP[chunkNb].compressedSize = LZ4_decompress_fast(chunkP[chunkNb].compressedBuffer, chunkP[chunkNb].origBuffer, chunkP[chunkNb].origSize); 396 nbLoops++; 397 } 398 milliTime = BMK_GetMilliSpan(milliTime); 399 400 if ((double)milliTime < fastestD*nbLoops) fastestD = (double)milliTime/nbLoops; 401 DISPLAY("%1i-%-14.14s : %9i -> %9i (%5.2f%%),%7.1f MB/s ,%7.1f MB/s\r", loopNb, inFileName, (int)benchedSize, (int)cSize, ratio, (double)benchedSize / fastestC / 1000., (double)benchedSize / fastestD / 1000.); 402 403 /* CRC Checking */ 404 crcCheck = XXH32(orig_buff, (unsigned int)benchedSize,0); 405 if (crcOrig!=crcCheck) { DISPLAY("\n!!! WARNING !!! %14s : Invalid Checksum : %x != %x\n", inFileName, (unsigned)crcOrig, (unsigned)crcCheck); break; } 406 } 407 408 if (crcOrig==crcCheck) 409 { 410 if (ratio<100.) 411 DISPLAY("%-16.16s : %9i -> %9i (%5.2f%%),%7.1f MB/s ,%7.1f MB/s\n", inFileName, (int)benchedSize, (int)cSize, ratio, (double)benchedSize / fastestC / 1000., (double)benchedSize / fastestD / 1000.); 412 else 413 DISPLAY("%-16.16s : %9i -> %9i (%5.1f%%),%7.1f MB/s ,%7.1f MB/s \n", inFileName, (int)benchedSize, (int)cSize, ratio, (double)benchedSize / fastestC / 1000., (double)benchedSize / fastestD / 1000.); 414 } 415 totals += benchedSize; 416 totalz += cSize; 417 totalc += fastestC; 418 totald += fastestD; 419 } 420 421 free(orig_buff); 422 free(compressedBuffer); 423 free(chunkP); 424 } 425 426 if (nbFiles > 1) 427 DISPLAY("%-16.16s :%10llu ->%10llu (%5.2f%%), %6.1f MB/s , %6.1f MB/s\n", " TOTAL", (long long unsigned int)totals, (long long unsigned int)totalz, (double)totalz/(double)totals*100., (double)totals/totalc/1000., (double)totals/totald/1000.); 428 429 if (BMK_pause) { DISPLAY("\npress enter...\n"); getchar(); } 430 431 return 0; 432 } 433 434 435 436
