mirror of
https://github.com/lz4/lz4.git
synced 2024-12-11 10:49:23 +08:00
442 lines
13 KiB
C
442 lines
13 KiB
C
/*
|
|
bench.c - Demo program to benchmark open-source compression algorithm
|
|
Copyright (C) Yann Collet 2012-2014
|
|
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(void) { BMK_pause = 1; }
|
|
|
|
|
|
//*********************************************************
|
|
// 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;
|
|
}
|
|
|
|
|
|
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;
|
|
}
|
|
|
|
|
|
|