From 8b8c726a5c4d5522ab7ce691c3cc6c8a7701ab60 Mon Sep 17 00:00:00 2001 From: Przemyslaw Skibinski Date: Fri, 4 Nov 2016 14:26:12 +0100 Subject: bench.c based on zstd --- programs/bench.c | 712 +++++++++++++++++++++++++++++++------------------------ programs/bench.h | 19 +- programs/util.h | 31 ++- 3 files changed, 433 insertions(+), 329 deletions(-) diff --git a/programs/bench.c b/programs/bench.c index bec93f9..1840bb0 100644 --- a/programs/bench.c +++ b/programs/bench.c @@ -23,36 +23,18 @@ - LZ4 source repository : https://github.com/lz4/lz4 */ -/*-************************************ -* Compiler Options -***************************************/ -#if defined(_MSC_VER) || defined(_WIN32) -# define _CRT_SECURE_NO_WARNINGS -# define _CRT_SECURE_NO_DEPRECATE /* VS2005 */ -#endif - -/* 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 - -#if defined(__MINGW32__) && !defined(_POSIX_SOURCE) -# define _POSIX_SOURCE 1 /* disable %llu warnings with MinGW on Windows */ -#endif - -/*-************************************ +/* ************************************* * Includes ***************************************/ -#include /* malloc */ -#include /* fprintf, fopen */ -#include /* stat64 */ -#include /* stat64 */ -#include /* clock_t, clock, CLOCKS_PER_SEC */ -#include /* strlen */ +#include "util.h" /* Compiler options, UTIL_GetFileSize, UTIL_sleep */ +#include /* malloc, free */ +#include /* memset */ +#include /* fprintf, fopen, ftello64 */ +#include /* clock_t, clock, CLOCKS_PER_SEC */ + +#include "datagen.h" /* RDG_genBuffer */ +#include "xxhash.h" #include "lz4.h" @@ -61,348 +43,454 @@ static int LZ4_compress_local(const char* src, char* dst, int srcSize, int dstSi #include "lz4hc.h" #define COMPRESSOR1 LZ4_compress_HC #define DEFAULTCOMPRESSOR COMPRESSOR0 - -#include "xxhash.h" +#define LZ4_isError(errcode) (errcode==0) -/*-************************************ -* Compiler specifics -***************************************/ -#if !defined(S_ISREG) -# define S_ISREG(x) (((x) & S_IFMT) == S_IFREG) -#endif - - -/*-************************************ -* Basic Types +/* ************************************* +* Constants ***************************************/ -#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L /* C99 */ -# include - typedef uint8_t BYTE; - typedef uint16_t U16; - typedef uint32_t U32; - typedef int32_t S32; - typedef uint64_t U64; +#ifndef LZ4_GIT_COMMIT_STRING +# define LZ4_GIT_COMMIT_STRING "" #else - typedef unsigned char BYTE; - typedef unsigned short U16; - typedef unsigned int U32; - typedef signed int S32; - typedef unsigned long long U64; +# define LZ4_GIT_COMMIT_STRING LZ4_EXPAND_AND_QUOTE(LZ4_GIT_COMMIT) #endif - -/*-************************************ -* Constants -***************************************/ -#define NBLOOPS 3 -#define TIMELOOP_S 1 -#define TIMELOOP_CLOCK (TIMELOOP_S * CLOCKS_PER_SEC) +#define NBSECONDS 3 +#define TIMELOOP_MICROSEC 1*1000000ULL /* 1 second */ +#define ACTIVEPERIOD_MICROSEC 70*1000000ULL /* 70 seconds */ +#define COOLPERIOD_SEC 10 #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 const size_t maxMemory = (sizeof(size_t)==4) ? (2 GB - 64 MB) : (size_t)(1ULL << ((sizeof(size_t)*8)-31)); + +static U32 g_compressibilityDefault = 50; -/*-************************************ -* Local structures +/* ************************************* +* console display ***************************************/ -struct chunkParameters -{ - U32 id; - char* origBuffer; - char* compressedBuffer; - int origSize; - int compressedSize; -}; +#define DISPLAY(...) fprintf(stderr, __VA_ARGS__) +#define DISPLAYLEVEL(l, ...) if (g_displayLevel>=l) { DISPLAY(__VA_ARGS__); } +static U32 g_displayLevel = 2; /* 0 : no display; 1: errors; 2 : + result + interaction + warnings; 3 : + progression; 4 : + information */ -struct compressionParameters -{ - int (*compressionFunction)(const char* src, char* dst, int srcSize, int dstSize, int cLevel); - int (*decompressionFunction)(const char* src, char* dst, int dstSize); -}; +#define DISPLAYUPDATE(l, ...) if (g_displayLevel>=l) { \ + if ((clock() - g_time > refreshRate) || (g_displayLevel>=4)) \ + { g_time = clock(); DISPLAY(__VA_ARGS__); \ + if (g_displayLevel>=4) fflush(stdout); } } +static const clock_t refreshRate = CLOCKS_PER_SEC * 15 / 100; +static clock_t g_time = 0; -/*-************************************ -* Macro +/* ************************************* +* Exceptions ***************************************/ -#define DISPLAY(...) fprintf(stderr, __VA_ARGS__) +#ifndef DEBUG +# define DEBUG 0 +#endif +#define DEBUGOUTPUT(...) if (DEBUG) DISPLAY(__VA_ARGS__); +#define EXM_THROW(error, ...) \ +{ \ + DEBUGOUTPUT("Error defined at %s, line %i : \n", __FILE__, __LINE__); \ + DISPLAYLEVEL(1, "Error %i : ", error); \ + DISPLAYLEVEL(1, __VA_ARGS__); \ + DISPLAYLEVEL(1, "\n"); \ + exit(error); \ +} -/*-************************************ +/* ************************************* * Benchmark Parameters ***************************************/ -static int g_chunkSize = DEFAULT_CHUNKSIZE; -static int g_nbIterations = NBLOOPS; -static int BMK_pause = 0; +static U32 g_nbSeconds = NBSECONDS; +static size_t g_blockSize = 0; +int g_additionalParam = 0; -void BMK_setBlocksize(int bsize) { g_chunkSize = bsize; } +void BMK_setNotificationLevel(unsigned level) { g_displayLevel=level; } -void BMK_setNbIterations(int nbLoops) +void BMK_setAdditionalParam(int additionalParam) { g_additionalParam=additionalParam; } + +void BMK_SetNbSeconds(unsigned nbSeconds) { - g_nbIterations = nbLoops; - DISPLAY("- %i iterations -\n", g_nbIterations); + g_nbSeconds = nbSeconds; + DISPLAYLEVEL(3, "- test >= %u seconds per compression / decompression -\n", g_nbSeconds); } -void BMK_setPause(void) { BMK_pause = 1; } +void BMK_SetBlockSize(size_t blockSize) +{ + g_blockSize = blockSize; + DISPLAYLEVEL(2, "using blocks of size %u KB \n", (U32)(blockSize>>10)); +} -/*-******************************************************* -* Private functions +/* ******************************************************** +* Bench functions **********************************************************/ +typedef struct +{ + const char* srcPtr; + size_t srcSize; + char* cPtr; + size_t cRoom; + size_t cSize; + char* resPtr; + size_t resSize; +} blockParam_t; + +struct compressionParameters +{ + int (*compressionFunction)(const char* src, char* dst, int srcSize, int dstSize, int cLevel); +}; + +#define MIN(a,b) ((a)<(b) ? (a) : (b)) +#define MAX(a,b) ((a)>(b) ? (a) : (b)) -/** BMK_getClockSpan() : - works even if overflow; Typical max span ~ 30 mn */ -static clock_t BMK_getClockSpan (clock_t clockStart) +static int BMK_benchMem(const void* srcBuffer, size_t srcSize, + const char* displayName, int cLevel, + const size_t* fileSizes, U32 nbFiles) { - return clock() - clockStart; + size_t const blockSize = (g_blockSize>=32 ? g_blockSize : srcSize) + (!srcSize) /* avoid div by 0 */ ; + U32 const maxNbBlocks = (U32) ((srcSize + (blockSize-1)) / blockSize) + nbFiles; + blockParam_t* const blockTable = (blockParam_t*) malloc(maxNbBlocks * sizeof(blockParam_t)); + size_t const maxCompressedSize = LZ4_compressBound((int)srcSize) + (maxNbBlocks * 1024); /* add some room for safety */ + void* const compressedBuffer = malloc(maxCompressedSize); + void* const resultBuffer = malloc(srcSize); + U32 nbBlocks; + UTIL_time_t ticksPerSecond; + struct compressionParameters compP; + int cfunctionId; + + /* checks */ + if (!compressedBuffer || !resultBuffer || !blockTable) + EXM_THROW(31, "allocation error : not enough memory"); + + /* init */ + if (strlen(displayName)>17) displayName += strlen(displayName)-17; /* can only display 17 characters */ + UTIL_initTimer(&ticksPerSecond); + + /* Init */ + if (cLevel < LZ4HC_MIN_CLEVEL) 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; + } + + /* Init blockTable data */ + { const char* srcPtr = (const char*)srcBuffer; + char* cPtr = (char*)compressedBuffer; + char* resPtr = (char*)resultBuffer; + U32 fileNb; + for (nbBlocks=0, fileNb=0; fileNb ACTIVEPERIOD_MICROSEC) { + DISPLAYLEVEL(2, "\rcooling down ... \r"); + UTIL_sleep(COOLPERIOD_SEC); + UTIL_getTime(&coolTime); + } + + /* Compression */ + DISPLAYLEVEL(2, "%2s-%-17.17s :%10u ->\r", marks[markNb], displayName, (U32)srcSize); + if (!cCompleted) memset(compressedBuffer, 0xE5, maxCompressedSize); /* warm up and erase result buffer */ + + UTIL_sleepMilli(1); /* give processor time to other processes */ + UTIL_waitForNextTick(ticksPerSecond); + UTIL_getTime(&clockStart); + + if (!cCompleted) { /* still some time to do compression tests */ + U32 nbLoops = 0; + do { + U32 blockNb; + for (blockNb=0; blockNbmaxTime; + } } + + cSize = 0; + { U32 blockNb; for (blockNb=0; blockNb%10u (%5.3f),%6.1f MB/s\r", + marks[markNb], displayName, (U32)srcSize, (U32)cSize, ratio, + (double)srcSize / fastestC ); + + (void)fastestD; (void)crcOrig; /* unused when decompression disabled */ +#if 1 + /* Decompression */ + if (!dCompleted) memset(resultBuffer, 0xD6, srcSize); /* warm result buffer */ + + UTIL_sleepMilli(1); /* give processor time to other processes */ + UTIL_waitForNextTick(ticksPerSecond); + UTIL_getTime(&clockStart); + + if (!dCompleted) { + U32 nbLoops = 0; + do { + U32 blockNb; + for (blockNb=0; blockNbmaxTime; + } } + + markNb = (markNb+1) % NB_MARKS; + DISPLAYLEVEL(2, "%2s-%-17.17s :%10u ->%10u (%5.3f),%6.1f MB/s ,%6.1f MB/s\r", + marks[markNb], displayName, (U32)srcSize, (U32)cSize, ratio, + (double)srcSize / fastestC, + (double)srcSize / fastestD ); + + /* CRC Checking */ + { U64 const crcCheck = XXH64(resultBuffer, srcSize, 0); + if (crcOrig!=crcCheck) { + size_t u; + DISPLAY("!!! WARNING !!! %14s : Invalid Checksum : %x != %x \n", displayName, (unsigned)crcOrig, (unsigned)crcCheck); + for (u=0; u u) break; + bacc += blockTable[segNb].srcSize; + } + pos = (U32)(u - bacc); + bNb = pos / (128 KB); + DISPLAY("(block %u, sub %u, pos %u) \n", segNb, bNb, pos); + break; + } + if (u==srcSize-1) { /* should never happen */ + DISPLAY("no difference detected\n"); + } } + break; + } } /* CRC Checking */ +#endif + } /* for (testNb = 1; testNb <= (g_nbSeconds + !g_nbSeconds); testNb++) */ + + if (g_displayLevel == 1) { + double cSpeed = (double)srcSize / fastestC; + double dSpeed = (double)srcSize / fastestD; + if (g_additionalParam) + DISPLAY("-%-3i%11i (%5.3f) %6.2f MB/s %6.1f MB/s %s (param=%d)\n", cLevel, (int)cSize, ratio, cSpeed, dSpeed, displayName, g_additionalParam); + else + DISPLAY("-%-3i%11i (%5.3f) %6.2f MB/s %6.1f MB/s %s\n", cLevel, (int)cSize, ratio, cSpeed, dSpeed, displayName); + } + DISPLAYLEVEL(2, "%2i#\n", cLevel); + } /* Bench */ + + /* clean up */ + free(blockTable); + free(compressedBuffer); + free(resultBuffer); + return 0; } + static size_t BMK_findMaxMem(U64 requiredMem) { size_t const step = 64 MB; - void* testmem = NULL; + BYTE* testmem = NULL; requiredMem = (((requiredMem >> 26) + 1) << 26); - requiredMem += 2*step; - if (requiredMem > MAX_MEM) requiredMem = MAX_MEM; + requiredMem += step; + if (requiredMem > maxMemory) requiredMem = maxMemory; - while (!testmem) { - if (requiredMem > step) requiredMem -= step; - else requiredMem >>= 1; - testmem = malloc ((size_t)requiredMem); - } - free (testmem); + do { + testmem = (BYTE*)malloc((size_t)requiredMem); + requiredMem -= step; + } while (!testmem); - /* keep some space available */ - if (requiredMem > step) requiredMem -= step; - else requiredMem >>= 1; - - return (size_t)requiredMem; + free(testmem); + return (size_t)(requiredMem); } -static U64 BMK_GetFileSize(const char* infilename) +static void BMK_benchCLevel(void* srcBuffer, size_t benchedSize, + const char* displayName, int cLevel, int cLevelLast, + const size_t* fileSizes, unsigned nbFiles) { - 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; -} + int l; + const char* pch = strrchr(displayName, '\\'); /* Windows */ + if (!pch) pch = strrchr(displayName, '/'); /* Linux */ + if (pch) displayName = pch+1; -/*-******************************************************* -* Public function -**********************************************************/ + SET_HIGH_PRIORITY; -int BMK_benchLevel(const 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 < LZ4HC_MIN_CLEVEL) 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; - } - - /* Loop for each file */ - while (fileIdx inFileSize) benchedSize = (size_t)inFileSize; - if (benchedSize < inFileSize) { - DISPLAY("Not enough memory for '%s' full size; testing %u MB only...\n", inFileName, (unsigned)(benchedSize>>20)); - } - - /* Allocation */ - nbChunks = (unsigned)(benchedSize / g_chunkSize) + 1; - chunkP = (struct chunkParameters*) malloc(nbChunks * sizeof(struct chunkParameters)); - orig_buff = (char*)malloc(benchedSize); - maxCompressedChunkSize = LZ4_compressBound(g_chunkSize); - { size_t const compressedBuffSize = (size_t)(nbChunks * maxCompressedChunkSize); - compressedBuffer = (char*)malloc(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 */ - { unsigned i; - size_t remaining = benchedSize; - char* in = orig_buff; - char* out = compressedBuffer; - for (i=0; i (size_t)g_chunkSize) { chunkP[i].origSize = g_chunkSize; remaining -= g_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); - if (strlen(inFileName)>16) inFileName += strlen(inFileName)-16; /* can only display 16 characters */ - 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, benchedSize,0); - - /* Bench */ - { int loopNb; - size_t cSize = 0; - double fastestC = 100000000., fastestD = 100000000.; - double ratio = 0.; - U32 crcCheck = 0; - - DISPLAY("\r%79s\r", ""); - for (loopNb = 1; loopNb <= g_nbIterations; loopNb++) { - int nbLoops = 0; - clock_t clockStart, clockEnd; - unsigned chunkNb; - - /* Compression */ - DISPLAY("%2i#%1i-%-14.14s : %9i ->\r", cLevel, loopNb, inFileName, (int)benchedSize); - { size_t i; for (i=0; i %9i (%5.2f%%),%7.1f MB/s\r", - cLevel, loopNb, inFileName, (int)benchedSize, (int)cSize, ratio, (double)benchedSize / (fastestC / CLOCKS_PER_SEC) / 1000000); - - /* Decompression */ - { size_t i; for (i=0; i %9i (%5.2f%%),%7.1f MB/s ,%7.1f MB/s \r", - cLevel, loopNb, inFileName, (int)benchedSize, (int)cSize, ratio, - (double)benchedSize / (fastestC / CLOCKS_PER_SEC) / 1000000, (double)benchedSize / (fastestD / CLOCKS_PER_SEC) / 1000000 ); - - /* CRC Checking */ - crcCheck = XXH32(orig_buff, benchedSize,0); - if (crcOrig!=crcCheck) { DISPLAY("\n!!! WARNING !!! %14s : Invalid Checksum : %x != %x\n", inFileName, (unsigned)crcOrig, (unsigned)crcCheck); break; } - } + if (g_displayLevel == 1 && !g_additionalParam) + DISPLAY("bench %s %s: input %u bytes, %u seconds, %u KB blocks\n", LZ4_VERSION_STRING, LZ4_GIT_COMMIT_STRING, (U32)benchedSize, g_nbSeconds, (U32)(g_blockSize>>10)); - if (crcOrig==crcCheck) { - if (ratio < 100.) - DISPLAY("%2i#%-16.16s : %9i -> %9i (%5.2f%%),%7.1f MB/s ,%7.1f MB/s \n", - cLevel, inFileName, (int)benchedSize, (int)cSize, ratio, - (double)benchedSize / (fastestC / CLOCKS_PER_SEC) / 1000000, (double)benchedSize / (fastestD / CLOCKS_PER_SEC) / 1000000 ); - else - DISPLAY("%2i#%-16.16s : %9i -> %9i (%5.1f%%),%7.1f MB/s ,%7.1f MB/s \n", - cLevel, inFileName, (int)benchedSize, (int)cSize, ratio, - (double)benchedSize / (fastestC / CLOCKS_PER_SEC) / 1000000, (double)benchedSize / (fastestD / CLOCKS_PER_SEC) / 1000000 ); - } - totals += benchedSize; - totalz += cSize; - totalc += fastestC; - totald += fastestD; - } + if (cLevelLast < cLevel) cLevelLast = cLevel; - free(orig_buff); - free(compressedBuffer); - free(chunkP); - } + for (l=cLevel; l <= cLevelLast; l++) { + BMK_benchMem(srcBuffer, benchedSize, + displayName, l, + fileSizes, nbFiles); + } +} - if (nbFiles > 1) - DISPLAY("%2i#%-16.16s :%10llu ->%10llu (%5.2f%%), %6.1f MB/s , %6.1f MB/s\n", cLevel, " TOTAL", - (long long unsigned)totals, (long long unsigned int)totalz, (double)totalz/(double)totals*100., - (double)totals/(totalc/CLOCKS_PER_SEC)/1000000, (double)totals/(totald/CLOCKS_PER_SEC)/1000000); - if (BMK_pause) { DISPLAY("\npress enter...\n"); (void)getchar(); } +/*! BMK_loadFiles() : + Loads `buffer` with content of files listed within `fileNamesTable`. + At most, fills `buffer` entirely */ +static void BMK_loadFiles(void* buffer, size_t bufferSize, + size_t* fileSizes, + const char** fileNamesTable, unsigned nbFiles) +{ + size_t pos = 0, totalSize = 0; + unsigned n; + for (n=0; n bufferSize-pos) fileSize = bufferSize-pos, nbFiles=n; /* buffer too small - stop after this file */ + { size_t const readSize = fread(((char*)buffer)+pos, 1, (size_t)fileSize, f); + if (readSize != (size_t)fileSize) EXM_THROW(11, "could not read %s", fileNamesTable[n]); + pos += readSize; } + fileSizes[n] = (size_t)fileSize; + totalSize += (size_t)fileSize; + fclose(f); + } - return 0; + if (totalSize == 0) EXM_THROW(12, "no data to bench"); } +static void BMK_benchFileTable(const char** fileNamesTable, unsigned nbFiles, + int cLevel, int cLevelLast) +{ + void* srcBuffer; + size_t benchedSize; + size_t* fileSizes = (size_t*)malloc(nbFiles * sizeof(size_t)); + U64 const totalSizeToLoad = UTIL_getTotalFileSize(fileNamesTable, nbFiles); + char mfName[20] = {0}; + + if (!fileSizes) EXM_THROW(12, "not enough memory for fileSizes"); + + /* Memory allocation & restrictions */ + benchedSize = BMK_findMaxMem(totalSizeToLoad * 3) / 3; + if (benchedSize==0) EXM_THROW(12, "not enough memory"); + if ((U64)benchedSize > totalSizeToLoad) benchedSize = (size_t)totalSizeToLoad; + if (benchedSize < totalSizeToLoad) + DISPLAY("Not enough memory; testing %u MB only...\n", (U32)(benchedSize >> 20)); + srcBuffer = malloc(benchedSize); + if (!srcBuffer) EXM_THROW(12, "not enough memory"); + + /* Load input buffer */ + BMK_loadFiles(srcBuffer, benchedSize, fileSizes, fileNamesTable, nbFiles); + + /* Bench */ + snprintf (mfName, sizeof(mfName), " %u files", nbFiles); + { const char* displayName = (nbFiles > 1) ? mfName : fileNamesTable[0]; + BMK_benchCLevel(srcBuffer, benchedSize, + displayName, cLevel, cLevelLast, + fileSizes, nbFiles); + } -int BMK_benchFiles(const char** fileNamesTable, int nbFiles, int cLevel, int cLevelLast) + /* clean up */ + free(srcBuffer); + free(fileSizes); +} + + +static void BMK_syntheticTest(int cLevel, int cLevelLast, double compressibility) { - int i, res = 0; + char name[20] = {0}; + size_t benchedSize = 10000000; + void* const srcBuffer = malloc(benchedSize); - if (cLevel > LZ4HC_MAX_CLEVEL) cLevel = LZ4HC_MAX_CLEVEL; - if (cLevelLast > LZ4HC_MAX_CLEVEL) cLevelLast = LZ4HC_MAX_CLEVEL; - if (cLevelLast < cLevel) cLevelLast = cLevel; + /* Memory allocation */ + if (!srcBuffer) EXM_THROW(21, "not enough memory"); - if (cLevelLast > cLevel) DISPLAY("Benchmarking levels from %d to %d\n", cLevel, cLevelLast); - for (i=cLevel; i<=cLevelLast; i++) { - res = BMK_benchLevel(fileNamesTable, nbFiles, i); - if (res != 0) break; - } + /* Fill input buffer */ + RDG_genBuffer(srcBuffer, benchedSize, compressibility, 0.0, 0); + + /* Bench */ + snprintf (name, sizeof(name), "Synthetic %2u%%", (unsigned)(compressibility*100)); + BMK_benchCLevel(srcBuffer, benchedSize, name, cLevel, cLevelLast, &benchedSize, 1); + + /* clean up */ + free(srcBuffer); +} + + +int BMK_benchFiles(const char** fileNamesTable, unsigned nbFiles, + int cLevel, int cLevelLast) +{ + double const compressibility = (double)g_compressibilityDefault / 100; - return res; + if (nbFiles == 0) + BMK_syntheticTest(cLevel, cLevelLast, compressibility); + else + BMK_benchFileTable(fileNamesTable, nbFiles, cLevel, cLevelLast); + return 0; } diff --git a/programs/bench.h b/programs/bench.h index e84aaee..15def93 100644 --- a/programs/bench.h +++ b/programs/bench.h @@ -1,6 +1,6 @@ /* bench.h - Demo program to benchmark open-source compression algorithm - Copyright (C) Yann Collet 2012-2015 + Copyright (C) Yann Collet 2012-2016 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 @@ -20,15 +20,18 @@ - LZ4 source repository : https://github.com/lz4/lz4 - LZ4 public forum : https://groups.google.com/forum/#!forum/lz4c */ -#pragma once +#ifndef BENCH_H_125623623633 +#define BENCH_H_125623623633 +#include -/* Main function */ -int BMK_benchFiles(const char** fileNamesTable, int nbFiles, int cLevel, int cLevelLast); -int BMK_benchLevel(const char** fileNamesTable, int nbFiles, int cLevel); +int BMK_benchFiles(const char** fileNamesTable, unsigned nbFiles, + int cLevel, int cLevelLast); /* Set Parameters */ -void BMK_setBlocksize(int bsize); -void BMK_setNbIterations(int nbLoops); -void BMK_setPause(void); +void BMK_SetNbSeconds(unsigned nbLoops); +void BMK_SetBlockSize(size_t blockSize); +void BMK_setAdditionalParam(int additionalParam); +void BMK_setNotificationLevel(unsigned level); +#endif /* BENCH_H_125623623633 */ diff --git a/programs/util.h b/programs/util.h index a5dcbf2..6a085da 100644 --- a/programs/util.h +++ b/programs/util.h @@ -1,12 +1,25 @@ -/** - * Copyright (c) 2016-present, Przemyslaw Skibinski, Yann Collet, Facebook, Inc. - * All rights reserved. - * - * This source code is licensed under the BSD-style license found in the - * LICENSE file in the root directory of this source tree. An additional grant - * of patent rights can be found in the PATENTS file in the same directory. - */ - +/* + util.h - utility functions + Copyright (C) 2016-present, Przemyslaw Skibinski, Yann Collet + + 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 source repository : https://github.com/lz4/lz4 + - LZ4 public forum : https://groups.google.com/forum/#!forum/lz4c +*/ #ifndef UTIL_H_MODULE #define UTIL_H_MODULE -- cgit v0.12