mirror of
https://github.com/facebook/zstd.git
synced 2025-11-04 00:02:59 -05:00
627 lines
28 KiB
C
627 lines
28 KiB
C
/**
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* Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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/* **************************************
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* Tuning parameters
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****************************************/
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#ifndef BMK_TIMETEST_DEFAULT_S /* default minimum time per test */
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#define BMK_TIMETEST_DEFAULT_S 3
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#endif
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/* **************************************
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* Compiler Warnings
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****************************************/
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#ifdef _MSC_VER
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# pragma warning(disable : 4127) /* disable: C4127: conditional expression is constant */
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#endif
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/* *************************************
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* Includes
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***************************************/
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#include "platform.h" /* Large Files support */
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#include "util.h" /* UTIL_getFileSize, UTIL_sleep */
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#include <stdlib.h> /* malloc, free */
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#include <string.h> /* memset */
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#include <stdio.h> /* fprintf, fopen */
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#include <time.h> /* clock_t, clock, CLOCKS_PER_SEC */
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#include "mem.h"
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#define ZSTD_STATIC_LINKING_ONLY
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#include "zstd.h"
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#include "datagen.h" /* RDG_genBuffer */
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#include "xxhash.h"
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#include "zstdmt_compress.h"
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/* *************************************
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* Constants
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***************************************/
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#ifndef ZSTD_GIT_COMMIT
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# define ZSTD_GIT_COMMIT_STRING ""
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#else
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# define ZSTD_GIT_COMMIT_STRING ZSTD_EXPAND_AND_QUOTE(ZSTD_GIT_COMMIT)
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#endif
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#define TIMELOOP_MICROSEC 1*1000000ULL /* 1 second */
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#define ACTIVEPERIOD_MICROSEC 70*1000000ULL /* 70 seconds */
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#define COOLPERIOD_SEC 10
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#define KB *(1 <<10)
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#define MB *(1 <<20)
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#define GB *(1U<<30)
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static const size_t maxMemory = (sizeof(size_t)==4) ? (2 GB - 64 MB) : (size_t)(1ULL << ((sizeof(size_t)*8)-31));
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static U32 g_compressibilityDefault = 50;
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/* *************************************
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* console display
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***************************************/
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#define DISPLAY(...) fprintf(stderr, __VA_ARGS__)
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#define DISPLAYLEVEL(l, ...) if (g_displayLevel>=l) { DISPLAY(__VA_ARGS__); }
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static int g_displayLevel = 2; /* 0 : no display; 1: errors; 2 : + result + interaction + warnings; 3 : + progression; 4 : + information */
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#define DISPLAYUPDATE(l, ...) if (g_displayLevel>=l) { \
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if ((clock() - g_time > refreshRate) || (g_displayLevel>=4)) \
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{ g_time = clock(); DISPLAY(__VA_ARGS__); \
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if (g_displayLevel>=4) fflush(stderr); } }
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static const clock_t refreshRate = CLOCKS_PER_SEC * 15 / 100;
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static clock_t g_time = 0;
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/* *************************************
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* Exceptions
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***************************************/
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#ifndef DEBUG
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# define DEBUG 0
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#endif
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#define DEBUGOUTPUT(...) { if (DEBUG) DISPLAY(__VA_ARGS__); }
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#define EXM_THROW(error, ...) { \
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DEBUGOUTPUT("%s: %i: \n", __FILE__, __LINE__); \
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DISPLAYLEVEL(1, "Error %i : ", error); \
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DISPLAYLEVEL(1, __VA_ARGS__); \
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DISPLAYLEVEL(1, " \n"); \
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exit(error); \
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}
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/* *************************************
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* Benchmark Parameters
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***************************************/
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static int g_additionalParam = 0;
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static U32 g_decodeOnly = 0;
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void BMK_setNotificationLevel(unsigned level) { g_displayLevel=level; }
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void BMK_setAdditionalParam(int additionalParam) { g_additionalParam=additionalParam; }
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static U32 g_nbSeconds = BMK_TIMETEST_DEFAULT_S;
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void BMK_setNbSeconds(unsigned nbSeconds)
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{
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g_nbSeconds = nbSeconds;
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DISPLAYLEVEL(3, "- test >= %u seconds per compression / decompression - \n", g_nbSeconds);
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}
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static size_t g_blockSize = 0;
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void BMK_setBlockSize(size_t blockSize)
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{
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g_blockSize = blockSize;
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if (g_blockSize) DISPLAYLEVEL(2, "using blocks of size %u KB \n", (U32)(blockSize>>10));
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}
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void BMK_setDecodeOnlyMode(unsigned decodeFlag) { g_decodeOnly = (decodeFlag>0); }
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static U32 g_nbThreads = 1;
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void BMK_setNbThreads(unsigned nbThreads) {
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#ifndef ZSTD_MULTITHREAD
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if (nbThreads > 1) DISPLAYLEVEL(2, "Note : multi-threading is disabled \n");
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#endif
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g_nbThreads = nbThreads;
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}
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/* ********************************************************
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* Bench functions
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**********************************************************/
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typedef struct {
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const void* srcPtr;
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size_t srcSize;
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void* cPtr;
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size_t cRoom;
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size_t cSize;
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void* resPtr;
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size_t resSize;
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} blockParam_t;
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#undef MIN
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#undef MAX
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#define MIN(a,b) ((a) < (b) ? (a) : (b))
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#define MAX(a,b) ((a) > (b) ? (a) : (b))
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static int BMK_benchMem(const void* srcBuffer, size_t srcSize,
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const char* displayName, int cLevel,
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const size_t* fileSizes, U32 nbFiles,
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const void* dictBuffer, size_t dictBufferSize,
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const ZSTD_compressionParameters* comprParams)
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{
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size_t const blockSize = ((g_blockSize>=32 && !g_decodeOnly) ? g_blockSize : srcSize) + (!srcSize) /* avoid div by 0 */ ;
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U32 const maxNbBlocks = (U32) ((srcSize + (blockSize-1)) / blockSize) + nbFiles;
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blockParam_t* const blockTable = (blockParam_t*) malloc(maxNbBlocks * sizeof(blockParam_t));
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size_t const maxCompressedSize = ZSTD_compressBound(srcSize) + (maxNbBlocks * 1024); /* add some room for safety */
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void* const compressedBuffer = malloc(maxCompressedSize);
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void* resultBuffer = malloc(srcSize);
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ZSTDMT_CCtx* const mtctx = ZSTDMT_createCCtx(g_nbThreads);
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ZSTD_CCtx* const ctx = ZSTD_createCCtx();
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ZSTD_DCtx* const dctx = ZSTD_createDCtx();
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size_t const loadedCompressedSize = srcSize;
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size_t cSize = 0;
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double ratio = 0.;
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U32 nbBlocks;
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UTIL_freq_t ticksPerSecond;
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/* checks */
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if (!compressedBuffer || !resultBuffer || !blockTable || !ctx || !dctx)
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EXM_THROW(31, "allocation error : not enough memory");
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/* init */
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if (strlen(displayName)>17) displayName += strlen(displayName)-17; /* display last 17 characters */
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UTIL_initTimer(&ticksPerSecond);
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if (g_decodeOnly) { /* benchmark only decompression : source must be already compressed */
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const char* srcPtr = (const char*)srcBuffer;
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U64 totalDSize64 = 0;
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U32 fileNb;
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for (fileNb=0; fileNb<nbFiles; fileNb++) {
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U64 const fSize64 = ZSTD_findDecompressedSize(srcPtr, fileSizes[fileNb]);
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if (fSize64==0) EXM_THROW(32, "Impossible to determine original size ");
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totalDSize64 += fSize64;
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srcPtr += fileSizes[fileNb];
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}
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{ size_t const decodedSize = (size_t)totalDSize64;
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if (totalDSize64 > decodedSize) EXM_THROW(32, "original size is too large"); /* size_t overflow */
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free(resultBuffer);
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resultBuffer = malloc(decodedSize);
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if (!resultBuffer) EXM_THROW(33, "not enough memory");
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cSize = srcSize;
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srcSize = decodedSize;
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ratio = (double)srcSize / (double)cSize;
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} }
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/* Init blockTable data */
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{ const char* srcPtr = (const char*)srcBuffer;
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char* cPtr = (char*)compressedBuffer;
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char* resPtr = (char*)resultBuffer;
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U32 fileNb;
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for (nbBlocks=0, fileNb=0; fileNb<nbFiles; fileNb++) {
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size_t remaining = fileSizes[fileNb];
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U32 const nbBlocksforThisFile = g_decodeOnly ? 1 : (U32)((remaining + (blockSize-1)) / blockSize);
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U32 const blockEnd = nbBlocks + nbBlocksforThisFile;
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for ( ; nbBlocks<blockEnd; nbBlocks++) {
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size_t const thisBlockSize = MIN(remaining, blockSize);
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blockTable[nbBlocks].srcPtr = (const void*)srcPtr;
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blockTable[nbBlocks].srcSize = thisBlockSize;
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blockTable[nbBlocks].cPtr = (void*)cPtr;
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blockTable[nbBlocks].cRoom = g_decodeOnly ? thisBlockSize : ZSTD_compressBound(thisBlockSize);
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blockTable[nbBlocks].cSize = blockTable[nbBlocks].cRoom;
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blockTable[nbBlocks].resPtr = (void*)resPtr;
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blockTable[nbBlocks].resSize = g_decodeOnly ? (size_t) ZSTD_findDecompressedSize(srcPtr, thisBlockSize) : thisBlockSize;
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srcPtr += thisBlockSize;
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cPtr += blockTable[nbBlocks].cRoom;
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resPtr += thisBlockSize;
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remaining -= thisBlockSize;
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} } }
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/* warmimg up memory */
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RDG_genBuffer(compressedBuffer, maxCompressedSize, 0.10, 0.50, 1);
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/* Bench */
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{ U64 fastestC = (U64)(-1LL), fastestD = (U64)(-1LL);
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U64 const crcOrig = g_decodeOnly ? 0 : XXH64(srcBuffer, srcSize, 0);
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UTIL_time_t coolTime;
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U64 const maxTime = (g_nbSeconds * TIMELOOP_MICROSEC) + 1;
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U64 totalCTime=0, totalDTime=0;
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U32 cCompleted=g_decodeOnly, dCompleted=0;
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# define NB_MARKS 4
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const char* const marks[NB_MARKS] = { " |", " /", " =", "\\" };
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U32 markNb = 0;
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UTIL_getTime(&coolTime);
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DISPLAYLEVEL(2, "\r%79s\r", "");
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while (!cCompleted || !dCompleted) {
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/* overheat protection */
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if (UTIL_clockSpanMicro(coolTime, ticksPerSecond) > ACTIVEPERIOD_MICROSEC) {
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DISPLAYLEVEL(2, "\rcooling down ... \r");
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UTIL_sleep(COOLPERIOD_SEC);
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UTIL_getTime(&coolTime);
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}
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if (!g_decodeOnly) {
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UTIL_time_t clockStart;
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/* Compression */
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DISPLAYLEVEL(2, "%2s-%-17.17s :%10u ->\r", marks[markNb], displayName, (U32)srcSize);
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if (!cCompleted) memset(compressedBuffer, 0xE5, maxCompressedSize); /* warm up and erase result buffer */
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UTIL_sleepMilli(1); /* give processor time to other processes */
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UTIL_waitForNextTick(ticksPerSecond);
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UTIL_getTime(&clockStart);
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if (!cCompleted) { /* still some time to do compression tests */
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U64 const clockLoop = g_nbSeconds ? TIMELOOP_MICROSEC : 1;
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U32 nbLoops = 0;
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ZSTD_CDict* cdict = NULL;
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#ifdef ZSTD_NEWAPI
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ZSTD_CCtx_setParameter(ctx, ZSTD_p_nbThreads, g_nbThreads);
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ZSTD_CCtx_setParameter(ctx, ZSTD_p_compressionLevel, cLevel);
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ZSTD_CCtx_setParameter(ctx, ZSTD_p_windowLog, comprParams->windowLog);
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ZSTD_CCtx_setParameter(ctx, ZSTD_p_chainLog, comprParams->chainLog);
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ZSTD_CCtx_setParameter(ctx, ZSTD_p_searchLog, comprParams->searchLog);
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ZSTD_CCtx_setParameter(ctx, ZSTD_p_minMatch, comprParams->searchLength);
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ZSTD_CCtx_setParameter(ctx, ZSTD_p_targetLength, comprParams->targetLength);
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ZSTD_CCtx_setParameter(ctx, ZSTD_p_compressionStrategy, comprParams->strategy);
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ZSTD_CCtx_loadDictionary(ctx, dictBuffer, dictBufferSize);
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#else
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size_t const avgSize = MIN(blockSize, (srcSize / nbFiles));
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ZSTD_parameters zparams = ZSTD_getParams(cLevel, avgSize, dictBufferSize);
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ZSTD_customMem const cmem = { NULL, NULL, NULL };
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if (comprParams->windowLog) zparams.cParams.windowLog = comprParams->windowLog;
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if (comprParams->chainLog) zparams.cParams.chainLog = comprParams->chainLog;
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if (comprParams->hashLog) zparams.cParams.hashLog = comprParams->hashLog;
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if (comprParams->searchLog) zparams.cParams.searchLog = comprParams->searchLog;
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if (comprParams->searchLength) zparams.cParams.searchLength = comprParams->searchLength;
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if (comprParams->targetLength) zparams.cParams.targetLength = comprParams->targetLength;
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if (comprParams->strategy) zparams.cParams.strategy = comprParams->strategy;
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cdict = ZSTD_createCDict_advanced(dictBuffer, dictBufferSize, 1 /*byRef*/, ZSTD_dm_auto, zparams.cParams, cmem);
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if (cdict==NULL) EXM_THROW(1, "ZSTD_createCDict_advanced() allocation failure");
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#endif
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do {
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U32 blockNb;
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for (blockNb=0; blockNb<nbBlocks; blockNb++) {
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size_t rSize;
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#ifdef ZSTD_NEWAPI
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ZSTD_outBuffer out = { blockTable[blockNb].cPtr, blockTable[blockNb].cRoom, 0 };
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ZSTD_inBuffer in = { blockTable[blockNb].srcPtr, blockTable[blockNb].srcSize, 0 };
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size_t cError = 1;
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while (cError) {
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cError = ZSTD_compress_generic(ctx,
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&out, &in, ZSTD_e_end);
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if (ZSTD_isError(cError))
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EXM_THROW(1, "ZSTD_compress_generic() error : %s",
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ZSTD_getErrorName(cError));
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}
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rSize = out.pos;
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#else /* ! ZSTD_NEWAPI */
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if (dictBufferSize) {
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rSize = ZSTD_compress_usingCDict(ctx,
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blockTable[blockNb].cPtr, blockTable[blockNb].cRoom,
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blockTable[blockNb].srcPtr,blockTable[blockNb].srcSize,
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cdict);
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} else {
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# ifdef ZSTD_MULTITHREAD /* note : limitation : MT single-pass does not support compression with dictionary */
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rSize = ZSTDMT_compressCCtx(mtctx,
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blockTable[blockNb].cPtr, blockTable[blockNb].cRoom,
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blockTable[blockNb].srcPtr,blockTable[blockNb].srcSize,
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cLevel);
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# else
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rSize = ZSTD_compress_advanced (ctx,
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blockTable[blockNb].cPtr, blockTable[blockNb].cRoom,
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blockTable[blockNb].srcPtr,blockTable[blockNb].srcSize,
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NULL, 0, zparams);
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# endif
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}
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if (ZSTD_isError(rSize))
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EXM_THROW(1, "ZSTD_compress_usingCDict() failed : %s",
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ZSTD_getErrorName(rSize));
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#endif /* ZSTD_NEWAPI */
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blockTable[blockNb].cSize = rSize;
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}
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nbLoops++;
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} while (UTIL_clockSpanMicro(clockStart, ticksPerSecond) < clockLoop);
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ZSTD_freeCDict(cdict);
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{ U64 const clockSpanMicro = UTIL_clockSpanMicro(clockStart, ticksPerSecond);
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if (clockSpanMicro < fastestC*nbLoops) fastestC = clockSpanMicro / nbLoops;
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totalCTime += clockSpanMicro;
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cCompleted = (totalCTime >= maxTime);
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} }
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cSize = 0;
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{ U32 blockNb; for (blockNb=0; blockNb<nbBlocks; blockNb++) cSize += blockTable[blockNb].cSize; }
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ratio = (double)srcSize / (double)cSize;
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markNb = (markNb+1) % NB_MARKS;
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DISPLAYLEVEL(2, "%2s-%-17.17s :%10u ->%10u (%5.3f),%6.1f MB/s\r",
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marks[markNb], displayName, (U32)srcSize, (U32)cSize, ratio,
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(double)srcSize / fastestC );
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} else { /* g_decodeOnly */
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memcpy(compressedBuffer, srcBuffer, loadedCompressedSize);
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}
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#if 0 /* disable decompression test */
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dCompleted=1;
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(void)totalDTime; (void)fastestD; (void)crcOrig; /* unused when decompression disabled */
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#else
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/* Decompression */
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if (!dCompleted) memset(resultBuffer, 0xD6, srcSize); /* warm result buffer */
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UTIL_sleepMilli(1); /* give processor time to other processes */
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UTIL_waitForNextTick(ticksPerSecond);
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if (!dCompleted) {
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U64 clockLoop = g_nbSeconds ? TIMELOOP_MICROSEC : 1;
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U32 nbLoops = 0;
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UTIL_time_t clockStart;
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ZSTD_DDict* const ddict = ZSTD_createDDict(dictBuffer, dictBufferSize);
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if (!ddict) EXM_THROW(2, "ZSTD_createDDict() allocation failure");
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UTIL_getTime(&clockStart);
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do {
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U32 blockNb;
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for (blockNb=0; blockNb<nbBlocks; blockNb++) {
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size_t const regenSize = ZSTD_decompress_usingDDict(dctx,
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blockTable[blockNb].resPtr, blockTable[blockNb].resSize,
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blockTable[blockNb].cPtr, blockTable[blockNb].cSize,
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ddict);
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if (ZSTD_isError(regenSize)) {
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DISPLAY("ZSTD_decompress_usingDDict() failed on block %u of size %u : %s \n",
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blockNb, (U32)blockTable[blockNb].cSize, ZSTD_getErrorName(regenSize));
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clockLoop = 0; /* force immediate test end */
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break;
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}
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blockTable[blockNb].resSize = regenSize;
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}
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nbLoops++;
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} while (UTIL_clockSpanMicro(clockStart, ticksPerSecond) < clockLoop);
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ZSTD_freeDDict(ddict);
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{ U64 const clockSpanMicro = UTIL_clockSpanMicro(clockStart, ticksPerSecond);
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if (clockSpanMicro < fastestD*nbLoops) fastestD = clockSpanMicro / nbLoops;
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totalDTime += clockSpanMicro;
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dCompleted = (totalDTime >= maxTime);
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} }
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markNb = (markNb+1) % NB_MARKS;
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DISPLAYLEVEL(2, "%2s-%-17.17s :%10u ->%10u (%5.3f),%6.1f MB/s ,%6.1f MB/s\r",
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marks[markNb], displayName, (U32)srcSize, (U32)cSize, ratio,
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(double)srcSize / fastestC,
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(double)srcSize / fastestD );
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/* CRC Checking */
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{ U64 const crcCheck = XXH64(resultBuffer, srcSize, 0);
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if (!g_decodeOnly && (crcOrig!=crcCheck)) {
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size_t u;
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DISPLAY("!!! WARNING !!! %14s : Invalid Checksum : %x != %x \n", displayName, (unsigned)crcOrig, (unsigned)crcCheck);
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for (u=0; u<srcSize; u++) {
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if (((const BYTE*)srcBuffer)[u] != ((const BYTE*)resultBuffer)[u]) {
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U32 segNb, bNb, pos;
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size_t bacc = 0;
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DISPLAY("Decoding error at pos %u ", (U32)u);
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for (segNb = 0; segNb < nbBlocks; segNb++) {
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if (bacc + blockTable[segNb].srcSize > u) break;
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bacc += blockTable[segNb].srcSize;
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}
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pos = (U32)(u - bacc);
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bNb = pos / (128 KB);
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DISPLAY("(sample %u, block %u, pos %u) \n", segNb, bNb, pos);
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if (u>5) {
|
|
int n;
|
|
for (n=-5; n<0; n++) DISPLAY("%02X ", ((const BYTE*)srcBuffer)[u+n]);
|
|
DISPLAY(" :%02X: ", ((const BYTE*)srcBuffer)[u]);
|
|
for (n=1; n<3; n++) DISPLAY("%02X ", ((const BYTE*)srcBuffer)[u+n]);
|
|
DISPLAY(" \n");
|
|
for (n=-5; n<0; n++) DISPLAY("%02X ", ((const BYTE*)resultBuffer)[u+n]);
|
|
DISPLAY(" :%02X: ", ((const BYTE*)resultBuffer)[u]);
|
|
for (n=1; n<3; n++) DISPLAY("%02X ", ((const BYTE*)resultBuffer)[u+n]);
|
|
DISPLAY(" \n");
|
|
}
|
|
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);
|
|
ZSTDMT_freeCCtx(mtctx);
|
|
ZSTD_freeCCtx(ctx);
|
|
ZSTD_freeDCtx(dctx);
|
|
return 0;
|
|
}
|
|
|
|
|
|
static size_t BMK_findMaxMem(U64 requiredMem)
|
|
{
|
|
size_t const step = 64 MB;
|
|
BYTE* testmem = NULL;
|
|
|
|
requiredMem = (((requiredMem >> 26) + 1) << 26);
|
|
requiredMem += step;
|
|
if (requiredMem > maxMemory) requiredMem = maxMemory;
|
|
|
|
do {
|
|
testmem = (BYTE*)malloc((size_t)requiredMem);
|
|
requiredMem -= step;
|
|
} while (!testmem);
|
|
|
|
free(testmem);
|
|
return (size_t)(requiredMem);
|
|
}
|
|
|
|
static void BMK_benchCLevel(void* srcBuffer, size_t benchedSize,
|
|
const char* displayName, int cLevel, int cLevelLast,
|
|
const size_t* fileSizes, unsigned nbFiles,
|
|
const void* dictBuffer, size_t dictBufferSize,
|
|
ZSTD_compressionParameters *compressionParams, int setRealTimePrio)
|
|
{
|
|
int l;
|
|
|
|
const char* pch = strrchr(displayName, '\\'); /* Windows */
|
|
if (!pch) pch = strrchr(displayName, '/'); /* Linux */
|
|
if (pch) displayName = pch+1;
|
|
|
|
if (setRealTimePrio) {
|
|
DISPLAYLEVEL(2, "Note : switching to a real-time priority \n");
|
|
SET_REALTIME_PRIORITY;
|
|
}
|
|
|
|
if (g_displayLevel == 1 && !g_additionalParam)
|
|
DISPLAY("bench %s %s: input %u bytes, %u seconds, %u KB blocks\n", ZSTD_VERSION_STRING, ZSTD_GIT_COMMIT_STRING, (U32)benchedSize, g_nbSeconds, (U32)(g_blockSize>>10));
|
|
|
|
if (cLevelLast < cLevel) cLevelLast = cLevel;
|
|
|
|
for (l=cLevel; l <= cLevelLast; l++) {
|
|
BMK_benchMem(srcBuffer, benchedSize,
|
|
displayName, l,
|
|
fileSizes, nbFiles,
|
|
dictBuffer, dictBufferSize, compressionParams);
|
|
}
|
|
}
|
|
|
|
|
|
/*! 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<nbFiles; n++) {
|
|
FILE* f;
|
|
U64 fileSize = UTIL_getFileSize(fileNamesTable[n]);
|
|
if (UTIL_isDirectory(fileNamesTable[n])) {
|
|
DISPLAYLEVEL(2, "Ignoring %s directory... \n", fileNamesTable[n]);
|
|
fileSizes[n] = 0;
|
|
continue;
|
|
}
|
|
f = fopen(fileNamesTable[n], "rb");
|
|
if (f==NULL) EXM_THROW(10, "impossible to open file %s", fileNamesTable[n]);
|
|
DISPLAYUPDATE(2, "Loading %s... \r", fileNamesTable[n]);
|
|
if (fileSize > 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);
|
|
}
|
|
|
|
if (totalSize == 0) EXM_THROW(12, "no data to bench");
|
|
}
|
|
|
|
static void BMK_benchFileTable(const char** fileNamesTable, unsigned nbFiles, const char* dictFileName, int cLevel,
|
|
int cLevelLast, ZSTD_compressionParameters *compressionParams, int setRealTimePrio)
|
|
{
|
|
void* srcBuffer;
|
|
size_t benchedSize;
|
|
void* dictBuffer = NULL;
|
|
size_t dictBufferSize = 0;
|
|
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");
|
|
|
|
/* Load dictionary */
|
|
if (dictFileName != NULL) {
|
|
U64 dictFileSize = UTIL_getFileSize(dictFileName);
|
|
if (dictFileSize > 64 MB) EXM_THROW(10, "dictionary file %s too large", dictFileName);
|
|
dictBufferSize = (size_t)dictFileSize;
|
|
dictBuffer = malloc(dictBufferSize);
|
|
if (dictBuffer==NULL) EXM_THROW(11, "not enough memory for dictionary (%u bytes)", (U32)dictBufferSize);
|
|
BMK_loadFiles(dictBuffer, dictBufferSize, fileSizes, &dictFileName, 1);
|
|
}
|
|
|
|
/* Memory allocation & restrictions */
|
|
benchedSize = BMK_findMaxMem(totalSizeToLoad * 3) / 3;
|
|
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,
|
|
dictBuffer, dictBufferSize, compressionParams, setRealTimePrio);
|
|
}
|
|
|
|
/* clean up */
|
|
free(srcBuffer);
|
|
free(dictBuffer);
|
|
free(fileSizes);
|
|
}
|
|
|
|
|
|
static void BMK_syntheticTest(int cLevel, int cLevelLast, double compressibility, ZSTD_compressionParameters* compressionParams, int setRealTimePrio)
|
|
{
|
|
char name[20] = {0};
|
|
size_t benchedSize = 10000000;
|
|
void* const srcBuffer = malloc(benchedSize);
|
|
|
|
/* Memory allocation */
|
|
if (!srcBuffer) EXM_THROW(21, "not enough memory");
|
|
|
|
/* 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, NULL, 0, compressionParams, setRealTimePrio);
|
|
|
|
/* clean up */
|
|
free(srcBuffer);
|
|
}
|
|
|
|
|
|
int BMK_benchFiles(const char** fileNamesTable, unsigned nbFiles, const char* dictFileName,
|
|
int cLevel, int cLevelLast, ZSTD_compressionParameters* compressionParams, int setRealTimePrio)
|
|
{
|
|
double const compressibility = (double)g_compressibilityDefault / 100;
|
|
|
|
if (cLevel < 1) cLevel = 1; /* minimum compression level */
|
|
if (cLevel > ZSTD_maxCLevel()) cLevel = ZSTD_maxCLevel();
|
|
if (cLevelLast > ZSTD_maxCLevel()) cLevelLast = ZSTD_maxCLevel();
|
|
if (cLevelLast < cLevel) cLevelLast = cLevel;
|
|
if (cLevelLast > cLevel) DISPLAYLEVEL(2, "Benchmarking levels from %d to %d\n", cLevel, cLevelLast);
|
|
|
|
if (nbFiles == 0)
|
|
BMK_syntheticTest(cLevel, cLevelLast, compressibility, compressionParams, setRealTimePrio);
|
|
else
|
|
BMK_benchFileTable(fileNamesTable, nbFiles, dictFileName, cLevel, cLevelLast, compressionParams, setRealTimePrio);
|
|
return 0;
|
|
}
|