mirror of
https://github.com/facebook/zstd.git
synced 2025-10-31 00:04:03 -04:00
535 lines
16 KiB
C
535 lines
16 KiB
C
/*
|
|
bench.c - Demo module to benchmark open-source compression algorithms
|
|
Copyright (C) Yann Collet 2012-2015
|
|
|
|
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 :
|
|
- zstd source repository : https://github.com/Cyan4973/zstd
|
|
- ztsd public forum : https://groups.google.com/forum/#!forum/lz4c
|
|
*/
|
|
|
|
/* **************************************
|
|
* Compiler Options
|
|
****************************************/
|
|
/* Disable some Visual warning messages */
|
|
#define _CRT_SECURE_NO_WARNINGS /* fopen */
|
|
|
|
/* 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, free */
|
|
#include <string.h> /* memset */
|
|
#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 "mem.h"
|
|
#include "zstd.h"
|
|
#include "zstdhc.h"
|
|
#include "xxhash.h"
|
|
|
|
|
|
/* *************************************
|
|
* Compiler specifics
|
|
***************************************/
|
|
#if !defined(S_ISREG)
|
|
# define S_ISREG(x) (((x) & S_IFMT) == S_IFREG)
|
|
#endif
|
|
|
|
|
|
/* *************************************
|
|
* Constants
|
|
***************************************/
|
|
#define NBLOOPS 3
|
|
#define TIMELOOP 2500
|
|
|
|
#define KB *(1 <<10)
|
|
#define MB *(1 <<20)
|
|
#define GB *(1U<<30)
|
|
|
|
#define MAX_MEM (2 GB - 64 MB)
|
|
#define DEFAULT_CHUNKSIZE (4 MB)
|
|
|
|
static U32 g_compressibilityDefault = 50;
|
|
static U32 prime1 = 2654435761U;
|
|
static U32 prime2 = 2246822519U;
|
|
|
|
|
|
/* *************************************
|
|
* Macros
|
|
***************************************/
|
|
#define DISPLAY(...) fprintf(stderr, __VA_ARGS__)
|
|
|
|
|
|
/* *************************************
|
|
* Benchmark Parameters
|
|
***************************************/
|
|
static int nbIterations = NBLOOPS;
|
|
static size_t g_blockSize = 0;
|
|
|
|
void BMK_SetNbIterations(int nbLoops)
|
|
{
|
|
nbIterations = nbLoops;
|
|
DISPLAY("- %i iterations -\n", nbIterations);
|
|
}
|
|
|
|
void BMK_SetBlockSize(size_t blockSize)
|
|
{
|
|
g_blockSize = blockSize;
|
|
DISPLAY("using blocks of size %u KB \n", (U32)(blockSize>>10));
|
|
}
|
|
|
|
|
|
/* ********************************************************
|
|
* Private functions
|
|
**********************************************************/
|
|
|
|
#if defined(BMK_LEGACY_TIMER)
|
|
|
|
static int BMK_GetMilliStart(void)
|
|
{
|
|
/* 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(void)
|
|
{
|
|
/* 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;
|
|
}
|
|
|
|
|
|
/* ********************************************************
|
|
* Data generator
|
|
**********************************************************/
|
|
/* will hopefully be converted into ROL instruction by compiler */
|
|
static U32 BMK_rotl32(unsigned val32, unsigned nbBits) { return((val32 << nbBits) | (val32 >> (32 - nbBits))); }
|
|
|
|
static U32 BMK_rand(U32* src)
|
|
{
|
|
U32 rand32 = *src;
|
|
rand32 *= prime1;
|
|
rand32 += prime2;
|
|
rand32 = BMK_rotl32(rand32, 13);
|
|
*src = rand32;
|
|
return rand32 >> 9;
|
|
}
|
|
|
|
|
|
#define BMK_RAND15BITS ( BMK_rand(&seed) & 0x7FFF)
|
|
#define BMK_RANDLENGTH ((BMK_rand(&seed) & 3) ? (BMK_rand(&seed) % 15) : (BMK_rand(&seed) % 510) + 15)
|
|
#define BMK_RANDCHAR (BYTE)((BMK_rand(&seed) & 63) + '0')
|
|
static void BMK_datagen(void* buffer, size_t bufferSize, double proba, U32 seed)
|
|
{
|
|
BYTE* BBuffer = (BYTE*)buffer;
|
|
unsigned pos = 0;
|
|
U32 P32 = (U32)(32768 * proba);
|
|
|
|
/* First Byte */
|
|
BBuffer[pos++] = BMK_RANDCHAR;
|
|
|
|
while (pos < bufferSize)
|
|
{
|
|
/* Select : Literal (noise) or copy (within 64K) */
|
|
if (BMK_RAND15BITS < P32)
|
|
{
|
|
/* Match */
|
|
size_t match, end;
|
|
unsigned length = BMK_RANDLENGTH + 4;
|
|
unsigned offset = BMK_RAND15BITS + 1;
|
|
if (offset > pos) offset = pos;
|
|
match = pos - offset;
|
|
end = pos + length;
|
|
if (end > bufferSize) end = bufferSize;
|
|
while (pos < end) BBuffer[pos++] = BBuffer[match++];
|
|
}
|
|
else
|
|
{
|
|
/* Literal */
|
|
size_t end;
|
|
unsigned length = BMK_RANDLENGTH;
|
|
end = pos + length;
|
|
if (end > bufferSize) end = bufferSize;
|
|
while (pos < end) BBuffer[pos++] = BMK_RANDCHAR;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/* ********************************************************
|
|
* Bench functions
|
|
**********************************************************/
|
|
typedef struct
|
|
{
|
|
char* srcPtr;
|
|
size_t srcSize;
|
|
char* cPtr;
|
|
size_t cRoom;
|
|
size_t cSize;
|
|
char* resPtr;
|
|
size_t resSize;
|
|
} blockParam_t;
|
|
|
|
|
|
typedef size_t (*compressor_t) (void* dst, size_t maxDstSize, const void* src, size_t srcSize, unsigned compressionLevel);
|
|
|
|
static size_t local_compress_fast (void* dst, size_t maxDstSize, const void* src, size_t srcSize, unsigned compressionLevel)
|
|
{
|
|
(void)compressionLevel;
|
|
return ZSTD_compress(dst, maxDstSize, src, srcSize);
|
|
}
|
|
|
|
#define MIN(a,b) (a<b ? a : b)
|
|
|
|
static int BMK_benchMem(void* srcBuffer, size_t srcSize, const char* fileName, int cLevel)
|
|
{
|
|
const size_t blockSize = g_blockSize ? g_blockSize : srcSize;
|
|
const U32 nbBlocks = (U32) ((srcSize + (blockSize-1)) / blockSize);
|
|
blockParam_t* const blockTable = (blockParam_t*) malloc(nbBlocks * sizeof(blockParam_t));
|
|
const size_t maxCompressedSize = (size_t)nbBlocks * ZSTD_compressBound(blockSize);
|
|
void* const compressedBuffer = malloc(maxCompressedSize);
|
|
void* const resultBuffer = malloc(srcSize);
|
|
compressor_t compressor;
|
|
U64 crcOrig;
|
|
|
|
/* Init */
|
|
if (cLevel <= 1) compressor = local_compress_fast;
|
|
else compressor = ZSTD_HC_compress;
|
|
|
|
/* Memory allocation & restrictions */
|
|
if (!compressedBuffer || !resultBuffer || !blockTable)
|
|
{
|
|
DISPLAY("\nError: not enough memory!\n");
|
|
free(compressedBuffer);
|
|
free(resultBuffer);
|
|
free(blockTable);
|
|
return 12;
|
|
}
|
|
|
|
/* Calculating input Checksum */
|
|
crcOrig = XXH64(srcBuffer, srcSize, 0);
|
|
|
|
/* Init blockTable data */
|
|
{
|
|
U32 i;
|
|
size_t remaining = srcSize;
|
|
char* srcPtr = (char*)srcBuffer;
|
|
char* cPtr = (char*)compressedBuffer;
|
|
char* resPtr = (char*)resultBuffer;
|
|
for (i=0; i<nbBlocks; i++)
|
|
{
|
|
size_t thisBlockSize = MIN(remaining, blockSize);
|
|
blockTable[i].srcPtr = srcPtr;
|
|
blockTable[i].cPtr = cPtr;
|
|
blockTable[i].resPtr = resPtr;
|
|
blockTable[i].srcSize = thisBlockSize;
|
|
blockTable[i].cRoom = ZSTD_compressBound(thisBlockSize);
|
|
srcPtr += thisBlockSize;
|
|
cPtr += blockTable[i].cRoom;
|
|
resPtr += thisBlockSize;
|
|
remaining -= thisBlockSize;
|
|
}
|
|
}
|
|
|
|
/* warmimg up memory */
|
|
BMK_datagen(compressedBuffer, maxCompressedSize, 0.10, 1);
|
|
|
|
/* Bench */
|
|
{
|
|
int loopNb;
|
|
size_t cSize = 0;
|
|
double fastestC = 100000000., fastestD = 100000000.;
|
|
double ratio = 0.;
|
|
U64 crcCheck = 0;
|
|
|
|
DISPLAY("\r%79s\r", "");
|
|
for (loopNb = 1; loopNb <= nbIterations; loopNb++)
|
|
{
|
|
int nbLoops;
|
|
int milliTime;
|
|
U32 blockNb;
|
|
|
|
/* Compression */
|
|
DISPLAY("%1i-%-14.14s : %9u ->\r", loopNb, fileName, (U32)srcSize);
|
|
memset(compressedBuffer, 0xE5, maxCompressedSize);
|
|
|
|
nbLoops = 0;
|
|
milliTime = BMK_GetMilliStart();
|
|
while (BMK_GetMilliStart() == milliTime);
|
|
milliTime = BMK_GetMilliStart();
|
|
while (BMK_GetMilliSpan(milliTime) < TIMELOOP)
|
|
{
|
|
for (blockNb=0; blockNb<nbBlocks; blockNb++)
|
|
blockTable[blockNb].cSize = compressor(blockTable[blockNb].cPtr, blockTable[blockNb].cRoom, blockTable[blockNb].srcPtr,blockTable[blockNb].srcSize, cLevel);
|
|
nbLoops++;
|
|
}
|
|
milliTime = BMK_GetMilliSpan(milliTime);
|
|
|
|
cSize = 0;
|
|
for (blockNb=0; blockNb<nbBlocks; blockNb++)
|
|
cSize += blockTable[blockNb].cSize;
|
|
if ((double)milliTime < fastestC*nbLoops) fastestC = (double)milliTime / nbLoops;
|
|
ratio = (double)cSize / (double)srcSize*100.;
|
|
DISPLAY("%1i-%-14.14s : %9i -> %9i (%5.2f%%),%7.1f MB/s\r", loopNb, fileName, (int)srcSize, (int)cSize, ratio, (double)srcSize / fastestC / 1000.);
|
|
|
|
#if 1
|
|
/* Decompression */
|
|
memset(resultBuffer, 0xD6, srcSize);
|
|
|
|
nbLoops = 0;
|
|
milliTime = BMK_GetMilliStart();
|
|
while (BMK_GetMilliStart() == milliTime);
|
|
milliTime = BMK_GetMilliStart();
|
|
for ( ; BMK_GetMilliSpan(milliTime) < TIMELOOP; nbLoops++)
|
|
{
|
|
for (blockNb=0; blockNb<nbBlocks; blockNb++)
|
|
blockTable[blockNb].resSize = ZSTD_decompress(blockTable[blockNb].resPtr, blockTable[blockNb].srcSize,
|
|
blockTable[blockNb].cPtr, blockTable[blockNb].cSize);
|
|
}
|
|
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, fileName, (int)srcSize, (int)cSize, ratio, (double)srcSize / fastestC / 1000., (double)srcSize / fastestD / 1000.);
|
|
|
|
/* CRC Checking */
|
|
crcCheck = XXH64(resultBuffer, srcSize, 0);
|
|
if (crcOrig!=crcCheck)
|
|
{
|
|
unsigned u;
|
|
unsigned eBlockSize = MIN(65536*2, blockSize);
|
|
DISPLAY("\n!!! WARNING !!! %14s : Invalid Checksum : %x != %x\n", fileName, (unsigned)crcOrig, (unsigned)crcCheck);
|
|
for (u=0; u<srcSize; u++)
|
|
{
|
|
if (((BYTE*)srcBuffer)[u] != ((BYTE*)resultBuffer)[u])
|
|
{
|
|
printf("Decoding error at pos %u (block %u, pos %u) \n", u, u / eBlockSize, u % eBlockSize);
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
if (crcOrig == crcCheck)
|
|
{
|
|
if (ratio<100.)
|
|
DISPLAY("%-16.16s : %9i -> %9i (%5.2f%%),%7.1f MB/s ,%7.1f MB/s\n", fileName, (int)srcSize, (int)cSize, ratio, (double)srcSize / fastestC / 1000., (double)srcSize / fastestD / 1000.);
|
|
else
|
|
DISPLAY("%-16.16s : %9i -> %9i (%5.1f%%),%7.1f MB/s ,%7.1f MB/s \n", fileName, (int)srcSize, (int)cSize, ratio, (double)srcSize / fastestC / 1000., (double)srcSize / fastestD / 1000.);
|
|
}
|
|
}
|
|
|
|
/* End cleaning */
|
|
free(compressedBuffer);
|
|
free(resultBuffer);
|
|
return 0;
|
|
}
|
|
|
|
|
|
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;
|
|
}
|
|
|
|
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 int BMK_benchOneFile(char* inFileName, int cLevel)
|
|
{
|
|
FILE* inFile;
|
|
U64 inFileSize;
|
|
size_t benchedSize, readSize;
|
|
void* srcBuffer;
|
|
int result;
|
|
|
|
/* Init */
|
|
(void)cLevel;
|
|
|
|
/* Check file existence */
|
|
inFile = fopen(inFileName, "rb");
|
|
if (inFile == NULL)
|
|
{
|
|
DISPLAY("Pb opening %s\n", inFileName);
|
|
return 11;
|
|
}
|
|
|
|
/* Memory allocation & restrictions */
|
|
inFileSize = BMK_GetFileSize(inFileName);
|
|
benchedSize = BMK_findMaxMem(inFileSize * 3) / 3;
|
|
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));
|
|
srcBuffer = malloc(benchedSize);
|
|
if (!srcBuffer)
|
|
{
|
|
DISPLAY("\nError: not enough memory!\n");
|
|
fclose(inFile);
|
|
return 12;
|
|
}
|
|
|
|
/* Fill input buffer */
|
|
DISPLAY("Loading %s... \r", inFileName);
|
|
readSize = fread(srcBuffer, 1, benchedSize, inFile);
|
|
fclose(inFile);
|
|
|
|
if (readSize != benchedSize)
|
|
{
|
|
DISPLAY("\nError: problem reading file '%s' !! \n", inFileName);
|
|
free(srcBuffer);
|
|
return 13;
|
|
}
|
|
|
|
// Bench
|
|
result = BMK_benchMem(srcBuffer, benchedSize, inFileName, cLevel);
|
|
|
|
// End
|
|
free(srcBuffer);
|
|
DISPLAY("\n");
|
|
return result;
|
|
}
|
|
|
|
|
|
static int BMK_syntheticTest(int cLevel, double compressibility)
|
|
{
|
|
size_t benchedSize = 10000000;
|
|
void* srcBuffer = malloc(benchedSize);
|
|
int result;
|
|
char name[20] = {0};
|
|
|
|
/* Init */
|
|
(void)cLevel;
|
|
|
|
/* Memory allocation */
|
|
if (!srcBuffer)
|
|
{
|
|
DISPLAY("\nError: not enough memory!\n");
|
|
free(srcBuffer);
|
|
return 12;
|
|
}
|
|
|
|
/* Fill input buffer */
|
|
BMK_datagen(srcBuffer, benchedSize, compressibility, 0);
|
|
|
|
/* Bench */
|
|
#ifdef _MSC_VER
|
|
sprintf_s(name, 20, "Synthetic %2u%%", (unsigned)(compressibility*100));
|
|
#else
|
|
snprintf (name, 20, "Synthetic %2u%%", (unsigned)(compressibility*100));
|
|
#endif
|
|
result = BMK_benchMem(srcBuffer, benchedSize, name, cLevel);
|
|
|
|
/* End */
|
|
free(srcBuffer);
|
|
DISPLAY("\n");
|
|
return result;
|
|
}
|
|
|
|
|
|
int BMK_benchFiles(char** fileNamesTable, unsigned nbFiles, unsigned cLevel)
|
|
{
|
|
double compressibility = (double)g_compressibilityDefault / 100;
|
|
|
|
if (nbFiles == 0)
|
|
{
|
|
BMK_syntheticTest(cLevel, compressibility);
|
|
}
|
|
else
|
|
{
|
|
/* Loop for each file */
|
|
unsigned fileIdx = 0;
|
|
while (fileIdx<nbFiles)
|
|
{
|
|
BMK_benchOneFile(fileNamesTable[fileIdx], cLevel);
|
|
fileIdx++;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|