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|
/*
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)
#if (defined(__sun__) && (!defined(__LP64__))) // Sun Solaris 32-bits requires specific definitions
# define _LARGEFILE_SOURCE
# define _FILE_OFFSET_BITS 64
#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)
# define S_ISREG(x) (((x) & S_IFMT) == S_IFREG)
# define BMK_LEGACY_TIMER 1
#endif
// GCC does not support _rotl outside of Windows
#if !defined(_WIN32)
# define _rotl(x,r) ((x << r) | (x >> (32 - r)))
#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
#include "lz4hc.h"
#define COMPRESSOR1 LZ4_compressHC
#define DEFAULTCOMPRESSOR COMPRESSOR0
#include "xxhash.h"
//**************************************
// 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 COMPRESSOR_NAME "Full LZ4 speed analyzer"
#define COMPRESSOR_VERSION ""
#define COMPILED __DATE__
#define AUTHOR "Yann Collet"
#define WELCOME_MESSAGE "*** %s %s, by %s (%s) ***\n", COMPRESSOR_NAME, COMPRESSOR_VERSION, AUTHOR, COMPILED
#define NBLOOPS 6
#define TIMELOOP 2500
#define KNUTH 2654435761U
#define MAX_MEM (1984<<20)
#define DEFAULT_CHUNKSIZE (4<<20)
//**************************************
// Local structures
//**************************************
struct chunkParameters
{
U32 id;
char* origBuffer;
char* compressedBuffer;
int origSize;
int compressedSize;
};
//**************************************
// 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;
DISPLAY("-Using Block Size of %i KB-\n", chunkSize>>10);
}
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 = (64U<<20); // 64 MB
BYTE* testmem=NULL;
requiredMem = (((requiredMem >> 25) + 1) << 26);
if (requiredMem > MAX_MEM) requiredMem = MAX_MEM;
requiredMem += 2*step;
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
//*********************************************************
static inline int local_LZ4_compress_limitedOutput(const char* in, char* out, int inSize)
{
return LZ4_compress_limitedOutput(in, out, inSize, LZ4_compressBound(inSize));
}
static inline int local_LZ4_compressHC_limitedOutput(const char* in, char* out, int inSize)
{
return LZ4_compressHC_limitedOutput(in, out, inSize, LZ4_compressBound(inSize));
}
static inline int local_LZ4_decompress_fast(const char* in, char* out, int inSize, int outSize)
{
(void)inSize;
LZ4_decompress_fast(in, out, outSize);
return outSize;
}
static inline int local_LZ4_decompress_fast_withPrefix64k(const char* in, char* out, int inSize, int outSize)
{
(void)inSize;
LZ4_decompress_fast_withPrefix64k(in, out, outSize);
return outSize;
}
static inline int local_LZ4_decompress_safe_partial(const char* in, char* out, int inSize, int outSize)
{
return LZ4_decompress_safe_partial(in, out, inSize, outSize - 5, outSize);
}
int fullSpeedBench(char** fileNamesTable, int nbFiles)
{
int fileIdx=0;
FILE* fileIn;
char* infilename;
U64 largefilesize;
size_t benchedSize;
int nbChunks;
int maxCChunkSize;
size_t readSize;
char* orig_buff;
char* compressed_buff; int compressed_buff_size;
struct chunkParameters* chunkP;
U32 crcc, crcd=0;
# define NB_COMPRESSION_ALGORITHMS 4
static char* compressionNames[] = { "LZ4_compress", "LZ4_compressHC", "LZ4_compressHC_limitedOutput", "LZ4_compress_limitedOutput" };
double totalCTime[NB_COMPRESSION_ALGORITHMS] = {0};
double totalCSize[NB_COMPRESSION_ALGORITHMS] = {0};
# define NB_DECOMPRESSION_ALGORITHMS 5
static char* decompressionNames[] = { "LZ4_decompress_fast", "LZ4_decompress_fast_withPrefix64k", "LZ4_decompress_safe", "LZ4_decompress_safe_withPrefix64k", "LZ4_decompress_safe_partial" };
double totalDTime[NB_DECOMPRESSION_ALGORITHMS] = {0};
U64 totals = 0;
// Loop for each file
while (fileIdx<nbFiles)
{
// Check file existence
infilename = fileNamesTable[fileIdx++];
fileIn = fopen( infilename, "rb" );
if (fileIn==NULL)
{
DISPLAY( "Pb opening %s\n", infilename);
return 11;
}
// Memory allocation & restrictions
largefilesize = BMK_GetFileSize(infilename);
benchedSize = (size_t) BMK_findMaxMem(largefilesize) / 2;
if ((U64)benchedSize > largefilesize) benchedSize = (size_t)largefilesize;
if (benchedSize < largefilesize)
{
DISPLAY("Not enough memory for '%s' full size; testing %i MB only...\n", infilename, (int)(benchedSize>>20));
}
// Alloc
chunkP = (struct chunkParameters*) malloc(((benchedSize / chunkSize)+1) * sizeof(struct chunkParameters));
orig_buff = (char*) malloc((size_t)benchedSize);
nbChunks = (int) (benchedSize / chunkSize) + 1;
maxCChunkSize = LZ4_compressBound(chunkSize);
compressed_buff_size = nbChunks * maxCChunkSize;
compressed_buff = (char*)malloc((size_t)compressed_buff_size);
if(!orig_buff || !compressed_buff)
{
DISPLAY("\nError: not enough memory!\n");
free(orig_buff);
free(compressed_buff);
fclose(fileIn);
return 12;
}
// Init chunks data
{
int i;
size_t remaining = benchedSize;
char* in = orig_buff;
char* out = compressed_buff;
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 += maxCChunkSize;
chunkP[i].compressedSize = 0;
}
}
// Fill input buffer
DISPLAY("Loading %s... \r", infilename);
readSize = fread(orig_buff, 1, benchedSize, fileIn);
fclose(fileIn);
if(readSize != benchedSize)
{
DISPLAY("\nError: problem reading file '%s' !! \n", infilename);
free(orig_buff);
free(compressed_buff);
return 13;
}
// Calculating input Checksum
crcc = XXH32(orig_buff, (unsigned int)benchedSize,0);
// Bench
{
int loopNb, nb_loops, chunkNb, cAlgNb, dAlgNb;
size_t cSize=0;
double ratio=0.;
DISPLAY("\r%79s\r", "");
DISPLAY(" %s : \n", infilename);
// Compression Algorithms
for (cAlgNb=0; cAlgNb < NB_COMPRESSION_ALGORITHMS; cAlgNb++)
{
char* cName = compressionNames[cAlgNb];
int (*compressionFunction)(const char*, char*, int);
double bestTime = 100000000.;
switch(cAlgNb)
{
case 0: compressionFunction = LZ4_compress; break;
case 1: compressionFunction = LZ4_compressHC; break;
case 2: compressionFunction = local_LZ4_compressHC_limitedOutput; break;
case 3: compressionFunction = local_LZ4_compress_limitedOutput; break;
default : DISPLAY("ERROR ! Bad algorithm Id !! \n"); return 1;
}
for (loopNb = 1; loopNb <= nbIterations; loopNb++)
{
double averageTime;
int milliTime;
DISPLAY("%1i-%-19.19s : %9i ->\r", loopNb, cName, (int)benchedSize);
{ size_t i; for (i=0; i<benchedSize; i++) compressed_buff[i]=(char)i; } // warmimg up memory
nb_loops = 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 = compressionFunction(chunkP[chunkNb].origBuffer, chunkP[chunkNb].compressedBuffer, chunkP[chunkNb].origSize);
if (chunkP[chunkNb].compressedSize==0) DISPLAY("ERROR ! %s() = 0 !! \n", cName), exit(1);
}
nb_loops++;
}
milliTime = BMK_GetMilliSpan(milliTime);
averageTime = (double)milliTime / nb_loops;
if (averageTime < bestTime) bestTime = averageTime;
cSize=0; for (chunkNb=0; chunkNb<nbChunks; chunkNb++) cSize += chunkP[chunkNb].compressedSize;
ratio = (double)cSize/(double)benchedSize*100.;
DISPLAY("%1i-%-19.19s : %9i -> %9i (%5.2f%%),%7.1f MB/s\r", loopNb, cName, (int)benchedSize, (int)cSize, ratio, (double)benchedSize / bestTime / 1000.);
}
if (ratio<100.)
DISPLAY("%-21.21s : %9i -> %9i (%5.2f%%),%7.1f MB/s\n", cName, (int)benchedSize, (int)cSize, ratio, (double)benchedSize / bestTime / 1000.);
else
DISPLAY("%-21.21s : %9i -> %9i (%5.1f%%),%7.1f MB/s\n", cName, (int)benchedSize, (int)cSize, ratio, (double)benchedSize / bestTime / 1000.);
totalCTime[cAlgNb] += bestTime;
totalCSize[cAlgNb] += cSize;
}
{ size_t i; for (i=0; i<benchedSize; i++) orig_buff[i]=0; } // zeroing area, for CRC checking
// Decompression Algorithms
for (dAlgNb=0; dAlgNb < NB_DECOMPRESSION_ALGORITHMS; dAlgNb++)
{
char* dName = decompressionNames[dAlgNb];
int (*decompressionFunction)(const char*, char*, int, int);
double bestTime = 100000000.;
switch(dAlgNb)
{
case 0: decompressionFunction = local_LZ4_decompress_fast; break;
case 1: decompressionFunction = local_LZ4_decompress_fast_withPrefix64k; break;
case 2: decompressionFunction = LZ4_decompress_safe; break;
case 3: decompressionFunction = LZ4_decompress_safe_withPrefix64k; break;
case 4: decompressionFunction = local_LZ4_decompress_safe_partial; break;
default : DISPLAY("ERROR ! Bad algorithm Id !! \n"); return 1;
}
for (loopNb = 1; loopNb <= nbIterations; loopNb++)
{
double averageTime;
int milliTime;
DISPLAY("%1i-%-19.19s : %9i ->\r", loopNb, dName, (int)benchedSize);
nb_loops = 0;
milliTime = BMK_GetMilliStart();
while(BMK_GetMilliStart() == milliTime);
milliTime = BMK_GetMilliStart();
while(BMK_GetMilliSpan(milliTime) < TIMELOOP)
{
for (chunkNb=0; chunkNb<nbChunks; chunkNb++)
{
int decodedSize = decompressionFunction(chunkP[chunkNb].compressedBuffer, chunkP[chunkNb].origBuffer, chunkP[chunkNb].compressedSize, chunkP[chunkNb].origSize);
if (chunkP[chunkNb].origSize != decodedSize) DISPLAY("ERROR ! %s() == %i != %i !! \n", dName, decodedSize, chunkP[chunkNb].origSize), exit(1);
}
nb_loops++;
}
milliTime = BMK_GetMilliSpan(milliTime);
averageTime = (double)milliTime / nb_loops;
if (averageTime < bestTime) bestTime = averageTime;
DISPLAY("%1i-%-19.19s : %9i -> %7.1f MB/s\r", loopNb, dName, (int)benchedSize, (double)benchedSize / bestTime / 1000.);
}
// CRC Checking
crcd = XXH32(orig_buff, (int)benchedSize, 0);
if (crcc!=crcd) { DISPLAY("\n!!! WARNING !!! %14s : Invalid Checksum : %x != %x\n", infilename, (unsigned)crcc, (unsigned)crcd); exit(1); }
DISPLAY("%-21.21s : %9i -> %7.1f MB/s\n", dName, (int)benchedSize, (double)benchedSize / bestTime / 1000.);
totalDTime[dAlgNb] += bestTime;
}
totals += benchedSize;
}
free(orig_buff);
free(compressed_buff);
free(chunkP);
}
if (nbFiles > 1)
{
int AlgNb;
DISPLAY(" TOTAL : \n");
for (AlgNb = 0; AlgNb < NB_COMPRESSION_ALGORITHMS; AlgNb ++)
{
char* cName = compressionNames[AlgNb];
DISPLAY("%-21.21s :%10llu ->%10llu (%5.2f%%), %6.1f MB/s\n", cName, (long long unsigned int)totals, (long long unsigned int)totalCSize[AlgNb], (double)totalCSize[AlgNb]/(double)totals*100., (double)totals/totalCTime[AlgNb]/1000.);
}
for (AlgNb = 0; AlgNb < NB_DECOMPRESSION_ALGORITHMS; AlgNb ++)
{
char* dName = decompressionNames[AlgNb];
DISPLAY("%-21.21s :%10llu -> %6.1f MB/s\n", dName, (long long unsigned int)totals, (double)totals/totalDTime[AlgNb]/1000.);
}
}
if (BMK_pause) { printf("press enter...\n"); getchar(); }
return 0;
}
int usage(char* exename)
{
DISPLAY( "Usage :\n");
DISPLAY( " %s [arg] file1 file2 ... fileX\n", exename);
DISPLAY( "Arguments :\n");
DISPLAY( " -H : Help (this text + advanced options)\n");
return 0;
}
int usage_advanced()
{
DISPLAY( "\nAdvanced options :\n");
DISPLAY( " -B# : Block size [4-7](default : 7)\n");
//DISPLAY( " -BD : Block dependency (improve compression ratio)\n");
DISPLAY( " -i# : iteration loops [1-9](default : 6)\n");
return 0;
}
int badusage(char* exename)
{
DISPLAY("Wrong parameters\n");
usage(exename);
return 0;
}
int main(int argc, char** argv)
{
int i,
filenamesStart=2;
char* exename=argv[0];
char* input_filename=0;
// Welcome message
DISPLAY( WELCOME_MESSAGE);
if (argc<2) { badusage(exename); return 1; }
for(i=1; i<argc; i++)
{
char* argument = argv[i];
if(!argument) continue; // Protection if argument empty
// Decode command (note : aggregated commands are allowed)
if (argument[0]=='-')
{
while (argument[1]!=0)
{
argument ++;
switch(argument[0])
{
// Display help on usage
case 'H': usage(exename); usage_advanced(); return 0;
// Modify Block Properties
case 'B':
while (argument[1]!=0)
switch(argument[1])
{
case '4':
case '5':
case '6':
case '7':
{
int B = argument[1] - '0';
int S = 1 << (8 + 2*B);
BMK_SetBlocksize(S);
argument++;
break;
}
case 'D': argument++; break;
default : goto _exit_blockProperties;
}
_exit_blockProperties:
break;
// Modify Nb Iterations (benchmark only)
case 'i':
if ((argument[1] >='1') && (argument[1] <='9'))
{
int iters = argument[1] - '0';
BMK_SetNbIterations(iters);
argument++;
}
break;
// Pause at the end (benchmark only) (hidden option)
case 'p': BMK_SetPause(); break;
// Unrecognised command
default : badusage(exename); return 1;
}
}
continue;
}
// first provided filename is input
if (!input_filename) { input_filename=argument; filenamesStart=i; continue; }
}
// No input filename ==> Error
if(!input_filename) { badusage(exename); return 1; }
return fullSpeedBench(argv+filenamesStart, argc-filenamesStart);
}
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