--- /dev/null
+/*
+ paramgrill.c - parameter tester for zstd_hc
+ Copyright (C) Yann Collet 2015
+
+ 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 :
+ - zstd source repository : https://github.com/Cyan4973/zstd
+ - ztsd public forum : https://groups.google.com/forum/#!forum/lz4c
+*/
+
+/**************************************
+* 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) || defined(_WIN32)
+# define BMK_LEGACY_TIMER 1
+#endif
+
+
+/**************************************
+* Includes
+**************************************/
+#include <stdlib.h> /* malloc */
+#include <stdio.h> /* fprintf, fopen, ftello64 */
+#include <sys/types.h> /* stat64 */
+#include <sys/stat.h> /* stat64 */
+#include <string.h> /* strcmp */
+
+/* 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 "mem.h"
+#include "zstdhc_static.h"
+#include "zstd.h"
+#include "datagen.h"
+#include "xxhash.h"
+
+
+/**************************************
+* Compiler Options
+**************************************/
+/* S_ISREG & gettimeofday() are not supported by MSVC */
+#if !defined(S_ISREG)
+# define S_ISREG(x) (((x) & S_IFMT) == S_IFREG)
+#endif
+
+
+/**************************************
+* Constants
+**************************************/
+#define PROGRAM_DESCRIPTION "ZSTD_HC parameters tester"
+#ifndef ZSTD_VERSION
+# define ZSTD_VERSION ""
+#endif
+#define AUTHOR "Yann Collet"
+#define WELCOME_MESSAGE "*** %s %s %i-bits, by %s (%s) ***\n", PROGRAM_DESCRIPTION, ZSTD_VERSION, (int)(sizeof(void*)*8), AUTHOR, __DATE__
+
+
+#define KB *(1<<10)
+#define MB *(1<<20)
+
+#define NBLOOPS 3
+#define TIMELOOP 2500
+
+#define KNUTH 2654435761U
+#define MAX_MEM (1984 MB)
+#define DEFAULT_CHUNKSIZE (4<<20)
+
+#define COMPRESSIBILITY_DEFAULT 0.50
+static const size_t sampleSize = 10000000;
+
+
+/**************************************
+* Macros
+**************************************/
+#define DISPLAY(...) fprintf(stderr, __VA_ARGS__)
+
+
+/**************************************
+* Benchmark Parameters
+**************************************/
+static U32 nbIterations = NBLOOPS;
+static double g_compressibility = COMPRESSIBILITY_DEFAULT;
+static U32 g_blockSize = 0;
+
+void BMK_SetNbIterations(int nbLoops)
+{
+ nbIterations = nbLoops;
+ DISPLAY("- %u iterations -\n", nbIterations);
+}
+
+
+/*********************************************************
+* Private functions
+*********************************************************/
+
+#if defined(BMK_LEGACY_TIMER)
+
+static int BMK_GetMilliStart(void)
+{
+ /* Based on Legacy ftime()
+ * Rolls over every ~ 12.1 days (0x100000/24/60/60)
+ * Use GetMilliSpan to correct for rollover */
+ struct timeb tb;
+ int nCount;
+ ftime( &tb );
+ nCount = (int) (tb.millitm + (tb.time & 0xfffff) * 1000);
+ return nCount;
+}
+
+#else
+
+static int BMK_GetMilliStart(void)
+{
+ /* Based on newer gettimeofday()
+ * Use GetMilliSpan to correct for rollover */
+ struct timeval tv;
+ int nCount;
+ gettimeofday(&tv, NULL);
+ nCount = (int) (tv.tv_usec/1000 + (tv.tv_sec & 0xfffff) * 1000);
+ return nCount;
+}
+
+#endif
+
+
+static int BMK_GetMilliSpan( int nTimeStart )
+{
+ int nSpan = BMK_GetMilliStart() - nTimeStart;
+ if ( nSpan < 0 )
+ nSpan += 0x100000 * 1000;
+ return nSpan;
+}
+
+
+static size_t BMK_findMaxMem(U64 requiredMem)
+{
+ size_t step = 64 MB;
+ BYTE* testmem=NULL;
+
+ requiredMem = (((requiredMem >> 26) + 1) << 26);
+ 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;
+}
+
+# define FUZ_rotl32(x,r) ((x << r) | (x >> (32 - r)))
+U32 FUZ_rand(U32* src)
+{
+ const U32 prime1 = 2654435761U;
+ const U32 prime2 = 2246822519U;
+ U32 rand32 = *src;
+ rand32 *= prime1;
+ rand32 += prime2;
+ rand32 = FUZ_rotl32(rand32, 13);
+ *src = rand32;
+ return rand32 >> 5;
+}
+
+
+/*********************************************************
+* Bench functions
+*********************************************************/
+typedef struct {
+ size_t cSize;
+ U32 cSpeed;
+ U32 dSpeed;
+} BMK_result_t;
+
+typedef struct
+{
+ const char* srcPtr;
+ size_t srcSize;
+ char* cPtr;
+ size_t cRoom;
+ size_t cSize;
+ char* resPtr;
+ size_t resSize;
+} blockParam_t;
+
+
+#define MIN(a,b) ( (a) < (b) ? (a) : (b) )
+static size_t BMK_benchParam(BMK_result_t* resultPtr,
+ const void* srcBuffer, size_t srcSize,
+ ZSTD_HC_CCtx* ctx,
+ const ZSTD_HC_parameters params)
+{
+ const size_t blockSize = g_blockSize ? g_blockSize : srcSize;
+ const U32 nbBlocks = (U32) ((srcSize + (blockSize-1)) / blockSize);
+ blockParam_t* const blockTable = (blockParam_t*) malloc(nbBlocks * sizeof(blockParam_t));
+ const size_t maxCompressedSize = (size_t)nbBlocks * ZSTD_compressBound(blockSize);
+ void* const compressedBuffer = malloc(maxCompressedSize);
+ void* const resultBuffer = malloc(srcSize);
+ U32 Wlog = params.windowLog;
+ U32 Clog = params.chainLog;
+ U32 Hlog = params.hashLog;
+ U32 Slog = params.searchLog;
+ U64 crcOrig;
+
+ /* Memory allocation & restrictions */
+ if (!compressedBuffer || !resultBuffer || !blockTable)
+ {
+ DISPLAY("\nError: not enough memory!\n");
+ free(compressedBuffer);
+ free(resultBuffer);
+ free(blockTable);
+ return 12;
+ }
+
+ /* Calculating input Checksum */
+ crcOrig = XXH64(srcBuffer, srcSize, 0);
+
+ /* Init blockTable data */
+ {
+ U32 i;
+ size_t remaining = srcSize;
+ const char* srcPtr = (const char*)srcBuffer;
+ char* cPtr = (char*)compressedBuffer;
+ char* resPtr = (char*)resultBuffer;
+ for (i=0; i<nbBlocks; i++)
+ {
+ size_t thisBlockSize = MIN(remaining, blockSize);
+ blockTable[i].srcPtr = srcPtr;
+ blockTable[i].cPtr = cPtr;
+ blockTable[i].resPtr = resPtr;
+ blockTable[i].srcSize = thisBlockSize;
+ blockTable[i].cRoom = ZSTD_compressBound(thisBlockSize);
+ srcPtr += thisBlockSize;
+ cPtr += blockTable[i].cRoom;
+ resPtr += thisBlockSize;
+ remaining -= thisBlockSize;
+ }
+ }
+
+ /* warmimg up memory */
+ RDG_genBuffer(compressedBuffer, maxCompressedSize, 0.10, 0.10, 1);
+
+ /* Bench */
+ {
+ U32 loopNb;
+ size_t cSize = 0;
+ double fastestC = 100000000., fastestD = 100000000.;
+ double ratio = 0.;
+ U64 crcCheck = 0;
+
+ DISPLAY("\r%79s\r", "");
+ for (loopNb = 1; loopNb <= nbIterations; loopNb++)
+ {
+ int nbLoops;
+ int milliTime;
+ U32 blockNb;
+
+ /* Compression */
+ DISPLAY("%1u-W%02uC%02uH%02uS%02u : %9u ->\r", loopNb, Wlog, Clog, Hlog, Slog, (U32)srcSize);
+ memset(compressedBuffer, 0xE5, maxCompressedSize);
+
+ nbLoops = 0;
+ milliTime = BMK_GetMilliStart();
+ while (BMK_GetMilliStart() == milliTime);
+ milliTime = BMK_GetMilliStart();
+ while (BMK_GetMilliSpan(milliTime) < TIMELOOP)
+ {
+ for (blockNb=0; blockNb<nbBlocks; blockNb++)
+ blockTable[blockNb].cSize = ZSTD_HC_compress_advanced(ctx,
+ blockTable[blockNb].cPtr, blockTable[blockNb].cRoom,
+ blockTable[blockNb].srcPtr, blockTable[blockNb].srcSize,
+ params);
+ nbLoops++;
+ }
+ milliTime = BMK_GetMilliSpan(milliTime);
+
+ cSize = 0;
+ for (blockNb=0; blockNb<nbBlocks; blockNb++)
+ cSize += blockTable[blockNb].cSize;
+ if ((double)milliTime < fastestC*nbLoops) fastestC = (double)milliTime / nbLoops;
+ ratio = (double)srcSize / (double)cSize;
+ DISPLAY("%1u-W%02uC%02uH%02uS%02u : %9u ->", loopNb, Wlog, Clog, Hlog, Slog, (U32)srcSize);
+ DISPLAY(" %9u (%4.3f),%7.1f MB/s\r", (U32)cSize, ratio, (double)srcSize / fastestC / 1000.);
+ resultPtr->cSize = cSize;
+ resultPtr->cSpeed = (U32)((double)srcSize / fastestC);
+
+#if 1
+ /* Decompression */
+ memset(resultBuffer, 0xD6, srcSize);
+
+ nbLoops = 0;
+ milliTime = BMK_GetMilliStart();
+ while (BMK_GetMilliStart() == milliTime);
+ milliTime = BMK_GetMilliStart();
+ for ( ; BMK_GetMilliSpan(milliTime) < TIMELOOP; nbLoops++)
+ {
+ for (blockNb=0; blockNb<nbBlocks; blockNb++)
+ blockTable[blockNb].resSize = ZSTD_decompress(blockTable[blockNb].resPtr, blockTable[blockNb].srcSize,
+ blockTable[blockNb].cPtr, blockTable[blockNb].cSize);
+ }
+ milliTime = BMK_GetMilliSpan(milliTime);
+
+ if ((double)milliTime < fastestD*nbLoops) fastestD = (double)milliTime / nbLoops;
+ DISPLAY("%1u-W%02uC%02uH%02uS%02u : %9u -> ", loopNb, Wlog, Clog, Hlog, Slog, (U32)srcSize);
+ DISPLAY("%9u (%4.3f),%7.1f MB/s, ", (U32)cSize, ratio, (double)srcSize / fastestC / 1000.);
+ DISPLAY("%7.1f MB/s\r", (double)srcSize / fastestD / 1000.);
+ resultPtr->dSpeed = (U32)((double)srcSize / fastestD);
+
+ /* CRC Checking */
+ crcCheck = XXH64(resultBuffer, srcSize, 0);
+ if (crcOrig!=crcCheck)
+ {
+ unsigned u;
+ unsigned eBlockSize = (unsigned)(MIN(65536*2, blockSize));
+ DISPLAY("\n!!! WARNING !!! Invalid Checksum : %x != %x\n", (unsigned)crcOrig, (unsigned)crcCheck);
+ for (u=0; u<srcSize; u++)
+ {
+ if (((const BYTE*)srcBuffer)[u] != ((BYTE*)resultBuffer)[u])
+ {
+ printf("Decoding error at pos %u (block %u, pos %u) \n", u, u / eBlockSize, u % eBlockSize);
+ break;
+ }
+ }
+ break;
+ }
+#endif
+ }
+ }
+
+ /* End cleaning */
+ free(compressedBuffer);
+ free(resultBuffer);
+ return 0;
+}
+
+
+static void BMK_printWinner(U32 cLevel, BMK_result_t result, ZSTD_HC_parameters params, size_t srcSize)
+{
+ DISPLAY("\r%79s\r", "");
+ DISPLAY("level %2u: R:%5.3f at %5.1f MB/s => W%02uC%02uH%02uS%02u \n",
+ cLevel, (double)srcSize / result.cSize, (double)result.cSpeed / 1000.,
+ params.windowLog, params.chainLog, params.hashLog, params.searchLog);
+}
+
+
+#define CLEVEL_MAX 20
+typedef struct {
+ BMK_result_t result;
+ ZSTD_HC_parameters params;
+} winnerInfo_t;
+
+static void BMK_printWinners(const winnerInfo_t* winners, size_t srcSize)
+{
+ int cLevel;
+
+ DISPLAY("\nSelected configurations :\n");
+ for (cLevel=0; cLevel < CLEVEL_MAX; cLevel++)
+ BMK_printWinner(cLevel, winners[cLevel].result, winners[cLevel].params, srcSize);
+
+}
+
+#define WINDOWLOG_MAX 26
+#define WINDOWLOG_MIN 17
+#define CHAINLOG_MAX WINDOWLOG_MAX
+#define CHAINLOG_MIN 4
+#define HASHLOG_MAX (CHAINLOG_MAX+4)
+#define HASHLOG_MIN 4
+#define SEARCHLOG_MAX CHAINLOG_MAX
+#define SEARCHLOG_MIN 1
+
+U32 g_cSpeedTarget[CLEVEL_MAX] = { 300000, 200000, 150000, 100000, 70000, 50000, 35000, 25000, 15000, 10000, /* 0 - 9 */
+ 7000, 5000, 3500, 2500, 1500, 1000, 700, 500, 350, 250 }; /* 10 - 19 */
+
+static void playAround(winnerInfo_t* winners, ZSTD_HC_parameters params,
+ const void* srcBuffer, size_t srcSize,
+ ZSTD_HC_CCtx* ctx)
+{
+ BMK_result_t testResult;
+ int better = 0;
+ int cLevel;
+
+ BMK_benchParam(&testResult, srcBuffer, srcSize, ctx, params);
+
+ for (cLevel = 0; cLevel < CLEVEL_MAX; cLevel++)
+ {
+ if ( (testResult.cSpeed > g_cSpeedTarget[cLevel])
+ && ((winners[cLevel].result.cSize==0) || (winners[cLevel].result.cSize > testResult.cSize)) )
+ {
+ better = 1;
+ winners[cLevel].result = testResult;
+ winners[cLevel].params = params;
+ BMK_printWinner(cLevel, testResult, params, srcSize);
+ }
+ }
+
+ if (!better) return;
+
+ BMK_printWinners(winners, srcSize);
+
+ if (params.searchLog > SEARCHLOG_MIN)
+ {
+ params.searchLog--;
+ playAround(winners, params, srcBuffer, srcSize, ctx);
+ params.searchLog++;
+ }
+
+ if (params.hashLog < HASHLOG_MAX)
+ {
+ params.hashLog++;
+ playAround(winners, params, srcBuffer, srcSize, ctx);
+ params.hashLog--;
+ }
+
+ if (params.chainLog > CHAINLOG_MIN)
+ {
+ params.chainLog--;
+ playAround(winners, params, srcBuffer, srcSize, ctx);
+ params.chainLog++;
+ }
+
+ if (params.windowLog > params.chainLog)
+ {
+ params.windowLog--;
+ playAround(winners, params, srcBuffer, srcSize, ctx);
+ params.windowLog++;
+ }
+
+ if (params.windowLog < WINDOWLOG_MAX)
+ {
+ params.windowLog++;
+ playAround(winners, params, srcBuffer, srcSize, ctx);
+ params.windowLog--;
+ }
+
+ if (params.chainLog < params.windowLog)
+ {
+ params.chainLog++;
+ playAround(winners, params, srcBuffer, srcSize, ctx);
+ params.chainLog--;
+ }
+
+ if (params.hashLog > HASHLOG_MIN)
+ {
+ params.hashLog--;
+ playAround(winners, params, srcBuffer, srcSize, ctx);
+ params.hashLog++;
+ }
+
+ if (params.searchLog < params.chainLog)
+ {
+ params.searchLog++;
+ playAround(winners, params, srcBuffer, srcSize, ctx);
+ params.searchLog--;
+ }
+
+}
+
+static void BMK_benchMem(void* srcBuffer, size_t srcSize)
+{
+ ZSTD_HC_CCtx* ctx = ZSTD_HC_createCCtx();
+ ZSTD_HC_parameters params;
+ winnerInfo_t winners[CLEVEL_MAX];
+ BMK_result_t testResult;
+
+ /* init */
+ memset(winners, 0, sizeof(winners));
+ params.windowLog = 19;
+ params.chainLog = 18;
+ params.hashLog = 17;
+ params.searchLog = 9;
+
+ /* set start config for level 9 */
+ BMK_benchParam(&testResult, srcBuffer, srcSize, ctx, params);
+
+ {
+ int i;
+ g_cSpeedTarget[9] = (testResult.cSpeed * 15) >> 4;
+ g_cSpeedTarget[1] = g_cSpeedTarget[9] << 4;
+ g_cSpeedTarget[0] = (g_cSpeedTarget[1] * 181) >> 7; /* sqrt2 */
+ for (i=2; i<CLEVEL_MAX; i++)
+ g_cSpeedTarget[i] = (g_cSpeedTarget[i-1] * 181) >> 8;
+ }
+
+ /* establish speed objectives (relative to current platform) */
+ playAround(winners, params, srcBuffer, srcSize, ctx);
+
+ /* end summary */
+ BMK_printWinners(winners, srcSize);
+
+ /* clean up*/
+ ZSTD_HC_freeCCtx(ctx);
+}
+
+
+static int benchSample(void)
+{
+ char* origBuff;
+ size_t benchedSize = sampleSize;
+ const char* name = "Sample 10MiB";
+
+ /* Allocation */
+ origBuff = (char*) malloc((size_t)benchedSize);
+ if(!origBuff)
+ {
+ DISPLAY("\nError: not enough memory!\n");
+ return 12;
+ }
+
+ /* Fill buffer */
+ RDG_genBuffer(origBuff, benchedSize, g_compressibility, 0.0, 0);
+
+ /* bench */
+ DISPLAY("\r%79s\r", "");
+ DISPLAY("using %s %i%%: \n", name, (int)(g_compressibility*100));
+ BMK_benchMem(origBuff, benchedSize);
+
+ free(origBuff);
+ return 0;
+}
+
+
+int benchFiles(char** fileNamesTable, int nbFiles)
+{
+ int fileIdx=0;
+
+ /* Loop for each file */
+ while (fileIdx<nbFiles)
+ {
+ FILE* inFile;
+ char* inFileName;
+ U64 inFileSize;
+ size_t benchedSize;
+ size_t readSize;
+ char* origBuff;
+
+ /* Check file existence */
+ inFileName = fileNamesTable[fileIdx++];
+ inFile = fopen( inFileName, "rb" );
+ if (inFile==NULL)
+ {
+ DISPLAY( "Pb opening %s\n", inFileName);
+ return 11;
+ }
+
+ // Memory allocation & restrictions
+ inFileSize = BMK_GetFileSize(inFileName);
+ benchedSize = (size_t) BMK_findMaxMem(inFileSize*3) / 3;
+ if ((U64)benchedSize > inFileSize) benchedSize = (size_t)inFileSize;
+ if (benchedSize < inFileSize)
+ {
+ DISPLAY("Not enough memory for '%s' full size; testing %i MB only...\n", inFileName, (int)(benchedSize>>20));
+ }
+
+ /* Alloc */
+ origBuff = (char*) malloc((size_t)benchedSize);
+ if(!origBuff)
+ {
+ DISPLAY("\nError: not enough memory!\n");
+ fclose(inFile);
+ return 12;
+ }
+
+ /* Fill input buffer */
+ DISPLAY("Loading %s... \r", inFileName);
+ readSize = fread(origBuff, 1, benchedSize, inFile);
+ fclose(inFile);
+
+ if(readSize != benchedSize)
+ {
+ DISPLAY("\nError: problem reading file '%s' !! \n", inFileName);
+ free(origBuff);
+ return 13;
+ }
+
+ /* bench */
+ DISPLAY("\r%79s\r", "");
+ DISPLAY("using %s : \n", inFileName);
+ BMK_benchMem(origBuff, benchedSize);
+ }
+
+ return 0;
+}
+
+
+int usage(char* exename)
+{
+ DISPLAY( "Usage :\n");
+ DISPLAY( " %s [arg] file\n", exename);
+ DISPLAY( "Arguments :\n");
+ DISPLAY( " -H/-h : Help (this text + advanced options)\n");
+ return 0;
+}
+
+int usage_advanced(void)
+{
+ DISPLAY( "\nAdvanced options :\n");
+ DISPLAY( " -i# : iteration loops [1-9](default : %i)\n", NBLOOPS);
+ DISPLAY( " -P# : sample compressibility (default : %.1f%%)\n", COMPRESSIBILITY_DEFAULT * 100);
+ return 0;
+}
+
+int badusage(char* exename)
+{
+ DISPLAY("Wrong parameters\n");
+ usage(exename);
+ return 0;
+}
+
+int main(int argc, char** argv)
+{
+ int i,
+ filenamesStart=0,
+ result;
+ char* exename=argv[0];
+ char* input_filename=0;
+ U32 main_pause = 0;
+
+ /* Welcome message */
+ DISPLAY(WELCOME_MESSAGE);
+
+ if (argc<1) { 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' :
+ case 'H': usage(exename); usage_advanced(); return 0;
+
+ /* Pause at the end (hidden option) */
+ case 'p': main_pause = 1; break;
+
+ /* Modify Nb Iterations */
+ case 'i':
+ if ((argument[1] >='0') && (argument[1] <='9'))
+ {
+ int iters = argument[1] - '0';
+ BMK_SetNbIterations(iters);
+ argument++;
+ }
+ break;
+
+ /* Sample compressibility (when no file provided) */
+ case 'P':
+ {
+ U32 proba32 = 0;
+ while ((argument[1]>= '0') && (argument[1]<= '9'))
+ {
+ proba32 *= 10;
+ proba32 += argument[1] - '0';
+ argument++;
+ }
+ g_compressibility = (double)proba32 / 100.;
+ }
+ break;
+
+ /* Unknown command */
+ default : badusage(exename); return 1;
+ }
+ }
+ continue;
+ }
+
+ /* first provided filename is input */
+ if (!input_filename) { input_filename=argument; filenamesStart=i; continue; }
+ }
+
+ if (filenamesStart==0)
+ result = benchSample();
+ else result = benchFiles(argv+filenamesStart, argc-filenamesStart);
+
+ if (main_pause) { int unused; printf("press enter...\n"); unused = getchar(); (void)unused; }
+
+ return result;
+}
+
projects / thirdparty / zstd.git / commitdiff
