summaryrefslogtreecommitdiffstats
path: root/programs/bench.c
blob: 2eabf6191172df92216b0bd7381eed7798505626 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
/*
    bench.c - Demo program to benchmark open-source compression algorithm
    Copyright (C) Yann Collet 2012-2013
    GPL v2 License

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License along
    with this program; if not, write to the Free Software Foundation, Inc.,
    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

    You can contact the author at :
    - LZ4 homepage : http://fastcompression.blogspot.com/p/lz4.html
    - LZ4 source repository : http://code.google.com/p/lz4/
*/

//**************************************
// Compiler Options
//**************************************
// Disable some Visual warning messages
#define _CRT_SECURE_NO_WARNINGS
#define _CRT_SECURE_NO_DEPRECATE     // VS2005

// Unix Large Files support (>4GB)
#define _FILE_OFFSET_BITS 64
#if (defined(__sun__) && (!defined(__LP64__)))   // Sun Solaris 32-bits requires specific definitions
#  define _LARGEFILE_SOURCE 
#elif ! defined(__LP64__)                        // No point defining Large file for 64 bit
#  define _LARGEFILE64_SOURCE
#endif

// S_ISREG & gettimeofday() are not supported by MSVC
#if defined(_MSC_VER) || defined(_WIN32)
#  define BMK_LEGACY_TIMER 1
#endif


//**************************************
// Includes
//**************************************
#include <stdlib.h>      // malloc
#include <stdio.h>       // fprintf, fopen, ftello64
#include <sys/types.h>   // stat64
#include <sys/stat.h>    // stat64

// Use ftime() if gettimeofday() is not available on your target
#if defined(BMK_LEGACY_TIMER)
#  include <sys/timeb.h>   // timeb, ftime
#else
#  include <sys/time.h>    // gettimeofday
#endif

#include "lz4.h"
#define COMPRESSOR0 LZ4_compress_local
static int LZ4_compress_local(const char* src, char* dst, int size, int clevel) { (void)clevel; return LZ4_compress(src, dst, size); }
#include "lz4hc.h"
#define COMPRESSOR1 LZ4_compressHC2
#define DEFAULTCOMPRESSOR COMPRESSOR0

#include "xxhash.h"


//**************************************
// Compiler specifics
//**************************************
#if !defined(S_ISREG)
#  define S_ISREG(x) (((x) & S_IFMT) == S_IFREG)
#endif

// GCC does not support _rotl outside of Windows
#if !defined(_WIN32)
#  define _rotl(x,r) ((x << r) | (x >> (32 - r)))
#endif


//**************************************
// Basic Types
//**************************************
#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L   // C99
# include <stdint.h>
  typedef uint8_t  BYTE;
  typedef uint16_t U16;
  typedef uint32_t U32;
  typedef  int32_t S32;
  typedef uint64_t U64;
#else
  typedef unsigned char       BYTE;
  typedef unsigned short      U16;
  typedef unsigned int        U32;
  typedef   signed int        S32;
  typedef unsigned long long  U64;
#endif


//**************************************
// Constants
//**************************************
#define NBLOOPS    3
#define TIMELOOP   2000

#define KB *(1U<<10)
#define MB *(1U<<20)
#define GB *(1U<<30)

#define KNUTH               2654435761U
#define MAX_MEM             (2 GB - 64 MB)
#define DEFAULT_CHUNKSIZE   (4 MB)


//**************************************
// Local structures
//**************************************
struct chunkParameters
{
    U32   id;
    char* origBuffer;
    char* compressedBuffer;
    int   origSize;
    int   compressedSize;
};

struct compressionParameters
{
    int (*compressionFunction)(const char*, char*, int, int);
    int (*decompressionFunction)(const char*, char*, int);
};


//**************************************
// MACRO
//**************************************
#define DISPLAY(...) fprintf(stderr, __VA_ARGS__)


//**************************************
// Benchmark Parameters
//**************************************
static int chunkSize = DEFAULT_CHUNKSIZE;
static int nbIterations = NBLOOPS;
static int BMK_pause = 0;

void BMK_SetBlocksize(int bsize) { chunkSize = bsize; }

void BMK_SetNbIterations(int nbLoops)
{
    nbIterations = nbLoops;
    DISPLAY("- %i iterations -\n", nbIterations);
}

void BMK_SetPause() { BMK_pause = 1; }


//*********************************************************
//  Private functions
//*********************************************************

#if defined(BMK_LEGACY_TIMER)

static int BMK_GetMilliStart()
{
  // Based on Legacy ftime()
  // Rolls over every ~ 12.1 days (0x100000/24/60/60)
  // Use GetMilliSpan to correct for rollover
  struct timeb tb;
  int nCount;
  ftime( &tb );
  nCount = (int) (tb.millitm + (tb.time & 0xfffff) * 1000);
  return nCount;
}

#else

static int BMK_GetMilliStart()
{
  // Based on newer gettimeofday()
  // Use GetMilliSpan to correct for rollover
  struct timeval tv;
  int nCount;
  gettimeofday(&tv, NULL);
  nCount = (int) (tv.tv_usec/1000 + (tv.tv_sec & 0xfffff) * 1000);
  return nCount;
}

#endif


static int BMK_GetMilliSpan( int nTimeStart )
{
  int nSpan = BMK_GetMilliStart() - nTimeStart;
  if ( nSpan < 0 )
    nSpan += 0x100000 * 1000;
  return nSpan;
}


static size_t BMK_findMaxMem(U64 requiredMem)
{
    size_t step = (64 MB);
    BYTE* testmem=NULL;

    requiredMem = (((requiredMem >> 26) + 1) << 26);
    requiredMem += 2*step;
    if (requiredMem > MAX_MEM) requiredMem = MAX_MEM;

    while (!testmem)
    {
        requiredMem -= step;
        testmem = (BYTE*) malloc ((size_t)requiredMem);
    }

    free (testmem);
    return (size_t) (requiredMem - step);
}


static U64 BMK_GetFileSize(char* infilename)
{
    int r;
#if defined(_MSC_VER)
    struct _stat64 statbuf;
    r = _stat64(infilename, &statbuf);
#else
    struct stat statbuf;
    r = stat(infilename, &statbuf);
#endif
    if (r || !S_ISREG(statbuf.st_mode)) return 0;   // No good...
    return (U64)statbuf.st_size;
}


//*********************************************************
//  Public function
//*********************************************************

int BMK_benchFile(char** fileNamesTable, int nbFiles, int cLevel)
{
  int fileIdx=0;
  char* orig_buff;
  struct compressionParameters compP;
  int cfunctionId;

  U64 totals = 0;
  U64 totalz = 0;
  double totalc = 0.;
  double totald = 0.;


  // Init
  if (cLevel <= 3) cfunctionId = 0; else cfunctionId = 1;
  switch (cfunctionId)
  {
#ifdef COMPRESSOR0
  case 0 : compP.compressionFunction = COMPRESSOR0; break;
#endif
#ifdef COMPRESSOR1
  case 1 : compP.compressionFunction = COMPRESSOR1; break;
#endif
  default : compP.compressionFunction = DEFAULTCOMPRESSOR;
  }
  compP.decompressionFunction = LZ4_decompress_fast;

  // Loop for each file
  while (fileIdx<nbFiles)
  {
      FILE*  inFile;
      char*  inFileName;
      U64    inFileSize;
      size_t benchedSize;
      int nbChunks;
      int maxCompressedChunkSize;
      size_t readSize;
      char* compressedBuffer; int compressedBuffSize;
      struct chunkParameters* chunkP;
      U32 crcOrig;

      // Check file existence
      inFileName = fileNamesTable[fileIdx++];
      inFile = fopen( inFileName, "rb" );
      if (inFile==NULL)
      {
        DISPLAY( "Pb opening %s\n", inFileName);
        return 11;
      }

      // Memory allocation & restrictions
      inFileSize = BMK_GetFileSize(inFileName);
      benchedSize = (size_t) BMK_findMaxMem(inFileSize * 2) / 2;
      if ((U64)benchedSize > inFileSize) benchedSize = (size_t)inFileSize;
      if (benchedSize < inFileSize)
      {
          DISPLAY("Not enough memory for '%s' full size; testing %i MB only...\n", inFileName, (int)(benchedSize>>20));
      }

      // Alloc
      chunkP = (struct chunkParameters*) malloc(((benchedSize / (size_t)chunkSize)+1) * sizeof(struct chunkParameters));
      orig_buff = (char*)malloc((size_t )benchedSize);
      nbChunks = (int) ((int)benchedSize / chunkSize) + 1;
      maxCompressedChunkSize = LZ4_compressBound(chunkSize);
      compressedBuffSize = nbChunks * maxCompressedChunkSize;
      compressedBuffer = (char*)malloc((size_t )compressedBuffSize);


      if (!orig_buff || !compressedBuffer)
      {
        DISPLAY("\nError: not enough memory!\n");
        free(orig_buff);
        free(compressedBuffer);
        free(chunkP);
        fclose(inFile);
        return 12;
      }

      // Init chunks data
      {
          int i;
          size_t remaining = benchedSize;
          char* in = orig_buff;
          char* out = compressedBuffer;
          for (i=0; i<nbChunks; i++)
          {
              chunkP[i].id = i;
              chunkP[i].origBuffer = in; in += chunkSize;
              if ((int)remaining > chunkSize) { chunkP[i].origSize = chunkSize; remaining -= chunkSize; } else { chunkP[i].origSize = (int)remaining; remaining = 0; }
              chunkP[i].compressedBuffer = out; out += maxCompressedChunkSize;
              chunkP[i].compressedSize = 0;
          }
      }

      // Fill input buffer
      DISPLAY("Loading %s...       \r", inFileName);
      readSize = fread(orig_buff, 1, benchedSize, inFile);
      fclose(inFile);

      if (readSize != benchedSize)
      {
        DISPLAY("\nError: problem reading file '%s' !!    \n", inFileName);
        free(orig_buff);
        free(compressedBuffer);
        free(chunkP);
        return 13;
      }

      // Calculating input Checksum
      crcOrig = XXH32(orig_buff, (unsigned int)benchedSize,0);


      // Bench
      {
        int loopNb, chunkNb;
        size_t cSize=0;
        double fastestC = 100000000., fastestD = 100000000.;
        double ratio=0.;
        U32 crcCheck=0;

        DISPLAY("\r%79s\r", "");
        for (loopNb = 1; loopNb <= nbIterations; loopNb++)
        {
          int nbLoops;
          int milliTime;

          // Compression
          DISPLAY("%1i-%-14.14s : %9i ->\r", loopNb, inFileName, (int)benchedSize);
          { size_t i; for (i=0; i<benchedSize; i++) compressedBuffer[i]=(char)i; }     // warmimg up memory

          nbLoops = 0;
          milliTime = BMK_GetMilliStart();
          while(BMK_GetMilliStart() == milliTime);
          milliTime = BMK_GetMilliStart();
          while(BMK_GetMilliSpan(milliTime) < TIMELOOP)
          {
            for (chunkNb=0; chunkNb<nbChunks; chunkNb++)
                chunkP[chunkNb].compressedSize = compP.compressionFunction(chunkP[chunkNb].origBuffer, chunkP[chunkNb].compressedBuffer, chunkP[chunkNb].origSize, cLevel);
            nbLoops++;
          }
          milliTime = BMK_GetMilliSpan(milliTime);

          if ((double)milliTime < fastestC*nbLoops) fastestC = (double)milliTime/nbLoops;
          cSize=0; for (chunkNb=0; chunkNb<nbChunks; chunkNb++) cSize += chunkP[chunkNb].compressedSize;
          ratio = (double)cSize/(double)benchedSize*100.;

          DISPLAY("%1i-%-14.14s : %9i -> %9i (%5.2f%%),%7.1f MB/s\r", loopNb, inFileName, (int)benchedSize, (int)cSize, ratio, (double)benchedSize / fastestC / 1000.);

          // Decompression
          { size_t i; for (i=0; i<benchedSize; i++) orig_buff[i]=0; }     // zeroing area, for CRC checking

          nbLoops = 0;
          milliTime = BMK_GetMilliStart();
          while(BMK_GetMilliStart() == milliTime);
          milliTime = BMK_GetMilliStart();
          while(BMK_GetMilliSpan(milliTime) < TIMELOOP)
          {
            for (chunkNb=0; chunkNb<nbChunks; chunkNb++)
                chunkP[chunkNb].compressedSize = LZ4_decompress_fast(chunkP[chunkNb].compressedBuffer, chunkP[chunkNb].origBuffer, chunkP[chunkNb].origSize);
            nbLoops++;
          }
          milliTime = BMK_GetMilliSpan(milliTime);

          if ((double)milliTime < fastestD*nbLoops) fastestD = (double)milliTime/nbLoops;
          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.);

          // CRC Checking
          crcCheck = XXH32(orig_buff, (unsigned int)benchedSize,0);
          if (crcOrig!=crcCheck) { DISPLAY("\n!!! WARNING !!! %14s : Invalid Checksum : %x != %x\n", inFileName, (unsigned)crcOrig, (unsigned)crcCheck); break; }
        }

        if (crcOrig==crcCheck)
        {
            if (ratio<100.)
                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.);
            else
                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.);
        }
        totals += benchedSize;
        totalz += cSize;
        totalc += fastestC;
        totald += fastestD;
      }

      free(orig_buff);
      free(compressedBuffer);
      free(chunkP);
  }

  if (nbFiles > 1)
        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.);

  if (BMK_pause) { DISPLAY("\npress enter...\n"); getchar(); }

  return 0;
}