/* * Copyright (c) 2016-present, Yann Collet, Facebook, Inc. * All rights reserved. * * This source code is licensed under both the BSD-style license (found in the * LICENSE file in the root directory of this source tree) and the GPLv2 (found * in the COPYING file in the root directory of this source tree). * You may select, at your option, one of the above-listed licenses. */ /* ************************************** * Tuning parameters ****************************************/ #ifndef BMK_TIMETEST_DEFAULT_S /* default minimum time per test */ #define BMK_TIMETEST_DEFAULT_S 3 #endif /* ************************************* * Includes ***************************************/ #include "platform.h" /* Large Files support */ #include "util.h" /* UTIL_getFileSize, UTIL_sleep */ #include /* malloc, free */ #include /* memset, strerror */ #include /* fprintf, fopen */ #include #include /* assert */ #include "benchfn.h" #include "mem.h" #define ZSTD_STATIC_LINKING_ONLY #include "zstd.h" #include "datagen.h" /* RDG_genBuffer */ #include "xxhash.h" #include "benchzstd.h" #include "zstd_errors.h" /* ************************************* * Constants ***************************************/ #ifndef ZSTD_GIT_COMMIT # define ZSTD_GIT_COMMIT_STRING "" #else # define ZSTD_GIT_COMMIT_STRING ZSTD_EXPAND_AND_QUOTE(ZSTD_GIT_COMMIT) #endif #define TIMELOOP_MICROSEC (1*1000000ULL) /* 1 second */ #define TIMELOOP_NANOSEC (1*1000000000ULL) /* 1 second */ #define ACTIVEPERIOD_MICROSEC (70*TIMELOOP_MICROSEC) /* 70 seconds */ #define COOLPERIOD_SEC 10 #define KB *(1 <<10) #define MB *(1 <<20) #define GB *(1U<<30) #define BMK_RUNTEST_DEFAULT_MS 1000 static const size_t maxMemory = (sizeof(size_t)==4) ? /* 32-bit */ (2 GB - 64 MB) : /* 64-bit */ (size_t)(1ULL << ((sizeof(size_t)*8)-31)); /* ************************************* * console display ***************************************/ #define DISPLAY(...) fprintf(stderr, __VA_ARGS__) #define DISPLAYLEVEL(l, ...) if (displayLevel>=l) { DISPLAY(__VA_ARGS__); } /* 0 : no display; 1: errors; 2 : + result + interaction + warnings; 3 : + progression; 4 : + information */ static const U64 g_refreshRate = SEC_TO_MICRO / 6; static UTIL_time_t g_displayClock = UTIL_TIME_INITIALIZER; #define DISPLAYUPDATE(l, ...) { if (displayLevel>=l) { \ if ((UTIL_clockSpanMicro(g_displayClock) > g_refreshRate) || (displayLevel>=4)) \ { g_displayClock = UTIL_getTime(); DISPLAY(__VA_ARGS__); \ if (displayLevel>=4) fflush(stderr); } } } /* ************************************* * Exceptions ***************************************/ #ifndef DEBUG # define DEBUG 0 #endif #define DEBUGOUTPUT(...) { if (DEBUG) DISPLAY(__VA_ARGS__); } #define EXM_THROW_INT(errorNum, ...) { \ DEBUGOUTPUT("%s: %i: \n", __FILE__, __LINE__); \ DISPLAYLEVEL(1, "Error %i : ", errorNum); \ DISPLAYLEVEL(1, __VA_ARGS__); \ DISPLAYLEVEL(1, " \n"); \ return errorNum; \ } #define CHECK_Z(zf) { \ size_t const zerr = zf; \ if (ZSTD_isError(zerr)) { \ DEBUGOUTPUT("%s: %i: \n", __FILE__, __LINE__); \ DISPLAY("Error : "); \ DISPLAY("%s failed : %s", \ #zf, ZSTD_getErrorName(zerr)); \ DISPLAY(" \n"); \ exit(1); \ } \ } #define RETURN_ERROR(errorNum, retType, ...) { \ retType r; \ memset(&r, 0, sizeof(retType)); \ DEBUGOUTPUT("%s: %i: \n", __FILE__, __LINE__); \ DISPLAYLEVEL(1, "Error %i : ", errorNum); \ DISPLAYLEVEL(1, __VA_ARGS__); \ DISPLAYLEVEL(1, " \n"); \ r.tag = errorNum; \ return r; \ } /* ************************************* * Benchmark Parameters ***************************************/ BMK_advancedParams_t BMK_initAdvancedParams(void) { BMK_advancedParams_t const res = { BMK_both, /* mode */ BMK_TIMETEST_DEFAULT_S, /* nbSeconds */ 0, /* blockSize */ 0, /* nbWorkers */ 0, /* realTime */ 0, /* additionalParam */ 0, /* ldmFlag */ 0, /* ldmMinMatch */ 0, /* ldmHashLog */ 0, /* ldmBuckSizeLog */ 0 /* ldmHashRateLog */ }; return res; } /* ******************************************************** * Bench functions **********************************************************/ typedef struct { const void* srcPtr; size_t srcSize; void* cPtr; size_t cRoom; size_t cSize; void* resPtr; size_t resSize; } blockParam_t; #undef MIN #undef MAX #define MIN(a,b) ((a) < (b) ? (a) : (b)) #define MAX(a,b) ((a) > (b) ? (a) : (b)) static void BMK_initCCtx(ZSTD_CCtx* ctx, const void* dictBuffer, size_t dictBufferSize, int cLevel, const ZSTD_compressionParameters* comprParams, const BMK_advancedParams_t* adv) { ZSTD_CCtx_reset(ctx, ZSTD_reset_session_and_parameters); if (adv->nbWorkers==1) { CHECK_Z(ZSTD_CCtx_setParameter(ctx, ZSTD_c_nbWorkers, 0)); } else { CHECK_Z(ZSTD_CCtx_setParameter(ctx, ZSTD_c_nbWorkers, adv->nbWorkers)); } CHECK_Z(ZSTD_CCtx_setParameter(ctx, ZSTD_c_compressionLevel, cLevel)); CHECK_Z(ZSTD_CCtx_setParameter(ctx, ZSTD_c_enableLongDistanceMatching, adv->ldmFlag)); CHECK_Z(ZSTD_CCtx_setParameter(ctx, ZSTD_c_ldmMinMatch, adv->ldmMinMatch)); CHECK_Z(ZSTD_CCtx_setParameter(ctx, ZSTD_c_ldmHashLog, adv->ldmHashLog)); CHECK_Z(ZSTD_CCtx_setParameter(ctx, ZSTD_c_ldmBucketSizeLog, adv->ldmBucketSizeLog)); CHECK_Z(ZSTD_CCtx_setParameter(ctx, ZSTD_c_ldmHashRateLog, adv->ldmHashRateLog)); CHECK_Z(ZSTD_CCtx_setParameter(ctx, ZSTD_c_windowLog, comprParams->windowLog)); CHECK_Z(ZSTD_CCtx_setParameter(ctx, ZSTD_c_hashLog, comprParams->hashLog)); CHECK_Z(ZSTD_CCtx_setParameter(ctx, ZSTD_c_chainLog, comprParams->chainLog)); CHECK_Z(ZSTD_CCtx_setParameter(ctx, ZSTD_c_searchLog, comprParams->searchLog)); CHECK_Z(ZSTD_CCtx_setParameter(ctx, ZSTD_c_minMatch, comprParams->minMatch)); CHECK_Z(ZSTD_CCtx_setParameter(ctx, ZSTD_c_targetLength, comprParams->targetLength)); CHECK_Z(ZSTD_CCtx_setParameter(ctx, ZSTD_c_strategy, comprParams->strategy)); CHECK_Z(ZSTD_CCtx_loadDictionary(ctx, dictBuffer, dictBufferSize)); } static void BMK_initDCtx(ZSTD_DCtx* dctx, const void* dictBuffer, size_t dictBufferSize) { CHECK_Z(ZSTD_DCtx_reset(dctx, ZSTD_reset_session_and_parameters)); CHECK_Z(ZSTD_DCtx_loadDictionary(dctx, dictBuffer, dictBufferSize)); } typedef struct { ZSTD_CCtx* cctx; const void* dictBuffer; size_t dictBufferSize; int cLevel; const ZSTD_compressionParameters* comprParams; const BMK_advancedParams_t* adv; } BMK_initCCtxArgs; static size_t local_initCCtx(void* payload) { BMK_initCCtxArgs* ag = (BMK_initCCtxArgs*)payload; BMK_initCCtx(ag->cctx, ag->dictBuffer, ag->dictBufferSize, ag->cLevel, ag->comprParams, ag->adv); return 0; } typedef struct { ZSTD_DCtx* dctx; const void* dictBuffer; size_t dictBufferSize; } BMK_initDCtxArgs; static size_t local_initDCtx(void* payload) { BMK_initDCtxArgs* ag = (BMK_initDCtxArgs*)payload; BMK_initDCtx(ag->dctx, ag->dictBuffer, ag->dictBufferSize); return 0; } /* `addArgs` is the context */ static size_t local_defaultCompress( const void* srcBuffer, size_t srcSize, void* dstBuffer, size_t dstSize, void* addArgs) { ZSTD_CCtx* const cctx = (ZSTD_CCtx*)addArgs; return ZSTD_compress2(cctx, dstBuffer, dstSize, srcBuffer, srcSize); } /* `addArgs` is the context */ static size_t local_defaultDecompress( const void* srcBuffer, size_t srcSize, void* dstBuffer, size_t dstCapacity, void* addArgs) { size_t moreToFlush = 1; ZSTD_DCtx* const dctx = (ZSTD_DCtx*)addArgs; ZSTD_inBuffer in; ZSTD_outBuffer out; in.src = srcBuffer; in.size = srcSize; in.pos = 0; out.dst = dstBuffer; out.size = dstCapacity; out.pos = 0; while (moreToFlush) { if(out.pos == out.size) { return (size_t)-ZSTD_error_dstSize_tooSmall; } moreToFlush = ZSTD_decompressStream(dctx, &out, &in); if (ZSTD_isError(moreToFlush)) { return moreToFlush; } } return out.pos; } /* ================================================================= */ /* Benchmark Zstandard, mem-to-mem scenarios */ /* ================================================================= */ int BMK_isSuccessful_benchOutcome(BMK_benchOutcome_t outcome) { return outcome.tag == 0; } BMK_benchResult_t BMK_extract_benchResult(BMK_benchOutcome_t outcome) { assert(outcome.tag == 0); return outcome.internal_never_use_directly; } static BMK_benchOutcome_t BMK_benchOutcome_error(void) { BMK_benchOutcome_t b; memset(&b, 0, sizeof(b)); b.tag = 1; return b; } static BMK_benchOutcome_t BMK_benchOutcome_setValidResult(BMK_benchResult_t result) { BMK_benchOutcome_t b; b.tag = 0; b.internal_never_use_directly = result; return b; } /* benchMem with no allocation */ static BMK_benchOutcome_t BMK_benchMemAdvancedNoAlloc( const void** srcPtrs, size_t* srcSizes, void** cPtrs, size_t* cCapacities, size_t* cSizes, void** resPtrs, size_t* resSizes, void** resultBufferPtr, void* compressedBuffer, size_t maxCompressedSize, BMK_timedFnState_t* timeStateCompress, BMK_timedFnState_t* timeStateDecompress, const void* srcBuffer, size_t srcSize, const size_t* fileSizes, unsigned nbFiles, const int cLevel, const ZSTD_compressionParameters* comprParams, const void* dictBuffer, size_t dictBufferSize, ZSTD_CCtx* cctx, ZSTD_DCtx* dctx, int displayLevel, const char* displayName, const BMK_advancedParams_t* adv) { size_t const blockSize = ((adv->blockSize>=32 && (adv->mode != BMK_decodeOnly)) ? adv->blockSize : srcSize) + (!srcSize); /* avoid div by 0 */ BMK_benchResult_t benchResult; size_t const loadedCompressedSize = srcSize; size_t cSize = 0; double ratio = 0.; U32 nbBlocks; assert(cctx != NULL); assert(dctx != NULL); /* init */ memset(&benchResult, 0, sizeof(benchResult)); if (strlen(displayName)>17) displayName += strlen(displayName) - 17; /* display last 17 characters */ if (adv->mode == BMK_decodeOnly) { /* benchmark only decompression : source must be already compressed */ const char* srcPtr = (const char*)srcBuffer; U64 totalDSize64 = 0; U32 fileNb; for (fileNb=0; fileNb decodedSize) { /* size_t overflow */ free(*resultBufferPtr); RETURN_ERROR(32, BMK_benchOutcome_t, "original size is too large"); } cSize = srcSize; srcSize = decodedSize; ratio = (double)srcSize / (double)cSize; } } /* Init data blocks */ { const char* srcPtr = (const char*)srcBuffer; char* cPtr = (char*)compressedBuffer; char* resPtr = (char*)(*resultBufferPtr); U32 fileNb; for (nbBlocks=0, fileNb=0; fileNbmode == BMK_decodeOnly) ? 1 : (U32)((remaining + (blockSize-1)) / blockSize); U32 const blockEnd = nbBlocks + nbBlocksforThisFile; for ( ; nbBlocksmode == BMK_decodeOnly) ? thisBlockSize : ZSTD_compressBound(thisBlockSize); resPtrs[nbBlocks] = resPtr; resSizes[nbBlocks] = (adv->mode == BMK_decodeOnly) ? (size_t) ZSTD_findDecompressedSize(srcPtr, thisBlockSize) : thisBlockSize; srcPtr += thisBlockSize; cPtr += cCapacities[nbBlocks]; resPtr += thisBlockSize; remaining -= thisBlockSize; if (adv->mode == BMK_decodeOnly) { assert(nbBlocks==0); cSizes[nbBlocks] = thisBlockSize; benchResult.cSize = thisBlockSize; } } } } /* warmimg up `compressedBuffer` */ if (adv->mode == BMK_decodeOnly) { memcpy(compressedBuffer, srcBuffer, loadedCompressedSize); } else { RDG_genBuffer(compressedBuffer, maxCompressedSize, 0.10, 0.50, 1); } /* Bench */ { U64 const crcOrig = (adv->mode == BMK_decodeOnly) ? 0 : XXH64(srcBuffer, srcSize, 0); # define NB_MARKS 4 const char* marks[NB_MARKS] = { " |", " /", " =", " \\" }; U32 markNb = 0; int compressionCompleted = (adv->mode == BMK_decodeOnly); int decompressionCompleted = (adv->mode == BMK_compressOnly); BMK_benchParams_t cbp, dbp; BMK_initCCtxArgs cctxprep; BMK_initDCtxArgs dctxprep; cbp.benchFn = local_defaultCompress; cbp.benchPayload = cctx; cbp.initFn = local_initCCtx; cbp.initPayload = &cctxprep; cbp.errorFn = ZSTD_isError; cbp.blockCount = nbBlocks; cbp.srcBuffers = srcPtrs; cbp.srcSizes = srcSizes; cbp.dstBuffers = cPtrs; cbp.dstCapacities = cCapacities; cbp.blockResults = cSizes; cctxprep.cctx = cctx; cctxprep.dictBuffer = dictBuffer; cctxprep.dictBufferSize = dictBufferSize; cctxprep.cLevel = cLevel; cctxprep.comprParams = comprParams; cctxprep.adv = adv; dbp.benchFn = local_defaultDecompress; dbp.benchPayload = dctx; dbp.initFn = local_initDCtx; dbp.initPayload = &dctxprep; dbp.errorFn = ZSTD_isError; dbp.blockCount = nbBlocks; dbp.srcBuffers = (const void* const *) cPtrs; dbp.srcSizes = cSizes; dbp.dstBuffers = resPtrs; dbp.dstCapacities = resSizes; dbp.blockResults = NULL; dctxprep.dctx = dctx; dctxprep.dictBuffer = dictBuffer; dctxprep.dictBufferSize = dictBufferSize; DISPLAYLEVEL(2, "\r%70s\r", ""); /* blank line */ DISPLAYLEVEL(2, "%2s-%-17.17s :%10u ->\r", marks[markNb], displayName, (U32)srcSize); while (!(compressionCompleted && decompressionCompleted)) { if (!compressionCompleted) { BMK_runOutcome_t const cOutcome = BMK_benchTimedFn( timeStateCompress, cbp); if (!BMK_isSuccessful_runOutcome(cOutcome)) { return BMK_benchOutcome_error(); } { BMK_runTime_t const cResult = BMK_extract_runTime(cOutcome); cSize = cResult.sumOfReturn; ratio = (double)srcSize / cSize; { BMK_benchResult_t newResult; newResult.cSpeed = ((U64)srcSize * TIMELOOP_NANOSEC / cResult.nanoSecPerRun); benchResult.cSize = cSize; if (newResult.cSpeed > benchResult.cSpeed) benchResult.cSpeed = newResult.cSpeed; } } { int const ratioAccuracy = (ratio < 10.) ? 3 : 2; DISPLAYLEVEL(2, "%2s-%-17.17s :%10u ->%10u (%5.*f),%6.*f MB/s\r", marks[markNb], displayName, (U32)srcSize, (U32)cSize, ratioAccuracy, ratio, benchResult.cSpeed < (10 MB) ? 2 : 1, (double)benchResult.cSpeed / MB_UNIT); } compressionCompleted = BMK_isCompleted_TimedFn(timeStateCompress); } if(!decompressionCompleted) { BMK_runOutcome_t const dOutcome = BMK_benchTimedFn(timeStateDecompress, dbp); if(!BMK_isSuccessful_runOutcome(dOutcome)) { return BMK_benchOutcome_error(); } { BMK_runTime_t const dResult = BMK_extract_runTime(dOutcome); U64 const newDSpeed = (srcSize * TIMELOOP_NANOSEC / dResult.nanoSecPerRun); if (newDSpeed > benchResult.dSpeed) benchResult.dSpeed = newDSpeed; } { int const ratioAccuracy = (ratio < 10.) ? 3 : 2; DISPLAYLEVEL(2, "%2s-%-17.17s :%10u ->%10u (%5.*f),%6.*f MB/s ,%6.1f MB/s \r", marks[markNb], displayName, (U32)srcSize, (U32)benchResult.cSize, ratioAccuracy, ratio, benchResult.cSpeed < (10 MB) ? 2 : 1, (double)benchResult.cSpeed / MB_UNIT, (double)benchResult.dSpeed / MB_UNIT); } decompressionCompleted = BMK_isCompleted_TimedFn(timeStateDecompress); } markNb = (markNb+1) % NB_MARKS; } /* while (!(compressionCompleted && decompressionCompleted)) */ /* CRC Checking */ { const BYTE* resultBuffer = (const BYTE*)(*resultBufferPtr); U64 const crcCheck = XXH64(resultBuffer, srcSize, 0); if ((adv->mode == BMK_both) && (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 += srcSizes[segNb]; } pos = (U32)(u - bacc); bNb = pos / (128 KB); DISPLAY("(sample %u, block %u, pos %u) \n", segNb, bNb, pos); if (u>5) { int n; DISPLAY("origin: "); 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"); DISPLAY("decode: "); for (n=-5; n<0; n++) DISPLAY("%02X ", resultBuffer[u+n]); DISPLAY(" :%02X: ", resultBuffer[u]); for (n=1; n<3; n++) DISPLAY("%02X ", resultBuffer[u+n]); DISPLAY(" \n"); } break; } if (u==srcSize-1) { /* should never happen */ DISPLAY("no difference detected\n"); } } } } /* CRC Checking */ if (displayLevel == 1) { /* hidden display mode -q, used by python speed benchmark */ double const cSpeed = (double)benchResult.cSpeed / MB_UNIT; double const dSpeed = (double)benchResult.dSpeed / MB_UNIT; if (adv->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, adv->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 */ benchResult.cMem = (1ULL << (comprParams->windowLog)) + ZSTD_sizeof_CCtx(cctx); return BMK_benchOutcome_setValidResult(benchResult); } BMK_benchOutcome_t BMK_benchMemAdvanced(const void* srcBuffer, size_t srcSize, void* dstBuffer, size_t dstCapacity, const size_t* fileSizes, unsigned nbFiles, int cLevel, const ZSTD_compressionParameters* comprParams, const void* dictBuffer, size_t dictBufferSize, int displayLevel, const char* displayName, const BMK_advancedParams_t* adv) { int const dstParamsError = !dstBuffer ^ !dstCapacity; /* must be both NULL or none */ size_t const blockSize = ((adv->blockSize>=32 && (adv->mode != BMK_decodeOnly)) ? adv->blockSize : srcSize) + (!srcSize) /* avoid div by 0 */ ; U32 const maxNbBlocks = (U32) ((srcSize + (blockSize-1)) / blockSize) + nbFiles; /* these are the blockTable parameters, just split up */ const void ** const srcPtrs = (const void**)malloc(maxNbBlocks * sizeof(void*)); size_t* const srcSizes = (size_t*)malloc(maxNbBlocks * sizeof(size_t)); void ** const cPtrs = (void**)malloc(maxNbBlocks * sizeof(void*)); size_t* const cSizes = (size_t*)malloc(maxNbBlocks * sizeof(size_t)); size_t* const cCapacities = (size_t*)malloc(maxNbBlocks * sizeof(size_t)); void ** const resPtrs = (void**)malloc(maxNbBlocks * sizeof(void*)); size_t* const resSizes = (size_t*)malloc(maxNbBlocks * sizeof(size_t)); BMK_timedFnState_t* timeStateCompress = BMK_createTimedFnState(adv->nbSeconds * 1000, BMK_RUNTEST_DEFAULT_MS); BMK_timedFnState_t* timeStateDecompress = BMK_createTimedFnState(adv->nbSeconds * 1000, BMK_RUNTEST_DEFAULT_MS); ZSTD_CCtx* const cctx = ZSTD_createCCtx(); ZSTD_DCtx* const dctx = ZSTD_createDCtx(); const size_t maxCompressedSize = dstCapacity ? dstCapacity : ZSTD_compressBound(srcSize) + (maxNbBlocks * 1024); void* const internalDstBuffer = dstBuffer ? NULL : malloc(maxCompressedSize); void* const compressedBuffer = dstBuffer ? dstBuffer : internalDstBuffer; BMK_benchOutcome_t outcome = BMK_benchOutcome_error(); /* error by default */ void* resultBuffer = srcSize ? malloc(srcSize) : NULL; int allocationincomplete = !srcPtrs || !srcSizes || !cPtrs || !cSizes || !cCapacities || !resPtrs || !resSizes || !timeStateCompress || !timeStateDecompress || !cctx || !dctx || !compressedBuffer || !resultBuffer; if (!allocationincomplete && !dstParamsError) { outcome = BMK_benchMemAdvancedNoAlloc(srcPtrs, srcSizes, cPtrs, cCapacities, cSizes, resPtrs, resSizes, &resultBuffer, compressedBuffer, maxCompressedSize, timeStateCompress, timeStateDecompress, srcBuffer, srcSize, fileSizes, nbFiles, cLevel, comprParams, dictBuffer, dictBufferSize, cctx, dctx, displayLevel, displayName, adv); } /* clean up */ BMK_freeTimedFnState(timeStateCompress); BMK_freeTimedFnState(timeStateDecompress); ZSTD_freeCCtx(cctx); ZSTD_freeDCtx(dctx); free(internalDstBuffer); free(resultBuffer); free((void*)srcPtrs); free(srcSizes); free(cPtrs); free(cSizes); free(cCapacities); free(resPtrs); free(resSizes); if(allocationincomplete) { RETURN_ERROR(31, BMK_benchOutcome_t, "allocation error : not enough memory"); } if(dstParamsError) { RETURN_ERROR(32, BMK_benchOutcome_t, "Dst parameters not coherent"); } return outcome; } BMK_benchOutcome_t BMK_benchMem(const void* srcBuffer, size_t srcSize, const size_t* fileSizes, unsigned nbFiles, int cLevel, const ZSTD_compressionParameters* comprParams, const void* dictBuffer, size_t dictBufferSize, int displayLevel, const char* displayName) { BMK_advancedParams_t const adv = BMK_initAdvancedParams(); return BMK_benchMemAdvanced(srcBuffer, srcSize, NULL, 0, fileSizes, nbFiles, cLevel, comprParams, dictBuffer, dictBufferSize, displayLevel, displayName, &adv); } static BMK_benchOutcome_t BMK_benchCLevel(const void* srcBuffer, size_t benchedSize, const size_t* fileSizes, unsigned nbFiles, int cLevel, const ZSTD_compressionParameters* comprParams, const void* dictBuffer, size_t dictBufferSize, int displayLevel, const char* displayName, BMK_advancedParams_t const * const adv) { const char* pch = strrchr(displayName, '\\'); /* Windows */ if (!pch) pch = strrchr(displayName, '/'); /* Linux */ if (pch) displayName = pch+1; if (adv->realTime) { DISPLAYLEVEL(2, "Note : switching to real-time priority \n"); SET_REALTIME_PRIORITY; } if (displayLevel == 1 && !adv->additionalParam) /* --quiet mode */ DISPLAY("bench %s %s: input %u bytes, %u seconds, %u KB blocks\n", ZSTD_VERSION_STRING, ZSTD_GIT_COMMIT_STRING, (U32)benchedSize, adv->nbSeconds, (U32)(adv->blockSize>>10)); return BMK_benchMemAdvanced(srcBuffer, benchedSize, NULL, 0, fileSizes, nbFiles, cLevel, comprParams, dictBuffer, dictBufferSize, displayLevel, displayName, adv); } BMK_benchOutcome_t BMK_syntheticTest(int cLevel, double compressibility, const ZSTD_compressionParameters* compressionParams, int displayLevel, const BMK_advancedParams_t* adv) { char name[20] = {0}; size_t const benchedSize = 10000000; void* srcBuffer; BMK_benchOutcome_t res; if (cLevel > ZSTD_maxCLevel()) { RETURN_ERROR(15, BMK_benchOutcome_t, "Invalid Compression Level"); } /* Memory allocation */ srcBuffer = malloc(benchedSize); if (!srcBuffer) RETURN_ERROR(21, BMK_benchOutcome_t, "not enough memory"); /* Fill input buffer */ RDG_genBuffer(srcBuffer, benchedSize, compressibility, 0.0, 0); /* Bench */ snprintf (name, sizeof(name), "Synthetic %2u%%", (unsigned)(compressibility*100)); res = BMK_benchCLevel(srcBuffer, benchedSize, &benchedSize /* ? */, 1 /* ? */, cLevel, compressionParams, NULL, 0, /* dictionary */ displayLevel, name, adv); /* clean up */ free(srcBuffer); return res; } 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 && requiredMem > 0); free(testmem); return (size_t)(requiredMem); } /*! BMK_loadFiles() : * Loads `buffer` with content of files listed within `fileNamesTable`. * At most, fills `buffer` entirely. */ static int BMK_loadFiles(void* buffer, size_t bufferSize, size_t* fileSizes, const char* const * fileNamesTable, unsigned nbFiles, int displayLevel) { 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_INT(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_INT(12, "no data to bench"); return 0; } BMK_benchOutcome_t BMK_benchFilesAdvanced( const char* const * fileNamesTable, unsigned nbFiles, const char* dictFileName, int cLevel, const ZSTD_compressionParameters* compressionParams, int displayLevel, const BMK_advancedParams_t* adv) { void* srcBuffer = NULL; size_t benchedSize; void* dictBuffer = NULL; size_t dictBufferSize = 0; size_t* fileSizes = NULL; BMK_benchOutcome_t res; U64 const totalSizeToLoad = UTIL_getTotalFileSize(fileNamesTable, nbFiles); if (!nbFiles) { RETURN_ERROR(14, BMK_benchOutcome_t, "No Files to Benchmark"); } if (cLevel > ZSTD_maxCLevel()) { RETURN_ERROR(15, BMK_benchOutcome_t, "Invalid Compression Level"); } fileSizes = (size_t*)calloc(nbFiles, sizeof(size_t)); if (!fileSizes) RETURN_ERROR(12, BMK_benchOutcome_t, "not enough memory for fileSizes"); /* Load dictionary */ if (dictFileName != NULL) { U64 const dictFileSize = UTIL_getFileSize(dictFileName); if (dictFileSize == UTIL_FILESIZE_UNKNOWN) { DISPLAYLEVEL(1, "error loading %s : %s \n", dictFileName, strerror(errno)); free(fileSizes); RETURN_ERROR(9, BMK_benchOutcome_t, "benchmark aborted"); } if (dictFileSize > 64 MB) { free(fileSizes); RETURN_ERROR(10, BMK_benchOutcome_t, "dictionary file %s too large", dictFileName); } dictBufferSize = (size_t)dictFileSize; dictBuffer = malloc(dictBufferSize); if (dictBuffer==NULL) { free(fileSizes); RETURN_ERROR(11, BMK_benchOutcome_t, "not enough memory for dictionary (%u bytes)", (U32)dictBufferSize); } { int const errorCode = BMK_loadFiles(dictBuffer, dictBufferSize, fileSizes, &dictFileName /*?*/, 1 /*?*/, displayLevel); if (errorCode) { res = BMK_benchOutcome_error(); goto _cleanUp; } } } /* 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 = benchedSize ? malloc(benchedSize) : NULL; if (!srcBuffer) { free(dictBuffer); free(fileSizes); RETURN_ERROR(12, BMK_benchOutcome_t, "not enough memory"); } /* Load input buffer */ { int const errorCode = BMK_loadFiles(srcBuffer, benchedSize, fileSizes, fileNamesTable, nbFiles, displayLevel); if (errorCode) { res = BMK_benchOutcome_error(); goto _cleanUp; } } /* Bench */ { char mfName[20] = {0}; snprintf (mfName, sizeof(mfName), " %u files", nbFiles); { const char* const displayName = (nbFiles > 1) ? mfName : fileNamesTable[0]; res = BMK_benchCLevel(srcBuffer, benchedSize, fileSizes, nbFiles, cLevel, compressionParams, dictBuffer, dictBufferSize, displayLevel, displayName, adv); } } _cleanUp: free(srcBuffer); free(dictBuffer); free(fileSizes); return res; } BMK_benchOutcome_t BMK_benchFiles( const char* const * fileNamesTable, unsigned nbFiles, const char* dictFileName, int cLevel, const ZSTD_compressionParameters* compressionParams, int displayLevel) { BMK_advancedParams_t const adv = BMK_initAdvancedParams(); return BMK_benchFilesAdvanced(fileNamesTable, nbFiles, dictFileName, cLevel, compressionParams, displayLevel, &adv); }