1142 lines
39 KiB
C
1142 lines
39 KiB
C
/*
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paramgrill.c - parameter tester for zstd
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Copyright (C) Yann Collet 2015-2016
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GPL v2 License
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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You can contact the author at :
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- zstd homepage : http://www.zstd.net/
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*/
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/*-************************************
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* Compiler Options
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**************************************/
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/* Disable some Visual warning messages */
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#define _CRT_SECURE_NO_WARNINGS
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#define _CRT_SECURE_NO_DEPRECATE /* VS2005 */
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/* Unix Large Files support (>4GB) */
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#if (defined(__sun__) && (!defined(__LP64__))) /* Sun Solaris 32-bits requires specific definitions */
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# define _LARGEFILE_SOURCE
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# define _FILE_OFFSET_BITS 64
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#elif ! defined(__LP64__) /* No point defining Large file for 64 bit */
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# define _LARGEFILE64_SOURCE
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#endif
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/* S_ISREG & gettimeofday() are not supported by MSVC */
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#if defined(_MSC_VER) || defined(_WIN32)
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# define BMK_LEGACY_TIMER 1
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#endif
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#if defined(_MSC_VER)
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# define snprintf _snprintf /* snprintf unsupported by Visual <= 2012 */
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#endif
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/*-************************************
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* Dependencies
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**************************************/
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#include <stdlib.h> /* malloc */
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#include <stdio.h> /* fprintf, fopen, ftello64 */
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#include <sys/types.h> /* stat64 */
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#include <sys/stat.h> /* stat64 */
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#include <string.h> /* strcmp */
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#include <math.h> /* log */
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/* Use ftime() if gettimeofday() is not available on your target */
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#if defined(BMK_LEGACY_TIMER)
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# include <sys/timeb.h> /* timeb, ftime */
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#else
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# include <sys/time.h> /* gettimeofday */
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#endif
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#include "mem.h"
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#include "zstd_static.h"
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#include "datagen.h"
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#include "xxhash.h"
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/*-************************************
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* Compiler Options
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**************************************/
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/* S_ISREG & gettimeofday() are not supported by MSVC */
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#if !defined(S_ISREG)
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# define S_ISREG(x) (((x) & S_IFMT) == S_IFREG)
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#endif
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/*-************************************
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* Constants
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**************************************/
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#define PROGRAM_DESCRIPTION "ZSTD_HC parameters tester"
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#ifndef ZSTD_VERSION
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# define ZSTD_VERSION ""
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#endif
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#define AUTHOR "Yann Collet"
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#define WELCOME_MESSAGE "*** %s %s %i-bits, by %s (%s) ***\n", PROGRAM_DESCRIPTION, ZSTD_VERSION, (int)(sizeof(void*)*8), AUTHOR, __DATE__
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#define KB *(1<<10)
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#define MB *(1<<20)
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#define GB *(1ULL<<30)
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#define NBLOOPS 2
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#define TIMELOOP 2000
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#define NB_LEVELS_TRACKED 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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#define DEFAULT_CHUNKSIZE (4<<20)
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#define COMPRESSIBILITY_DEFAULT 0.50
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static const size_t sampleSize = 10000000;
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static const int g_grillDuration = 50000000; /* about 13 hours */
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static const int g_maxParamTime = 15000; /* 15 sec */
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static const int g_maxVariationTime = 60000; /* 60 sec */
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static const int g_maxNbVariations = 64;
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/*-************************************
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* Macros
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**************************************/
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#define DISPLAY(...) fprintf(stderr, __VA_ARGS__)
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/*-************************************
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* Benchmark Parameters
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**************************************/
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static U32 g_nbIterations = NBLOOPS;
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static double g_compressibility = COMPRESSIBILITY_DEFAULT;
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static U32 g_blockSize = 0;
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static U32 g_rand = 1;
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static U32 g_singleRun = 0;
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static U32 g_target = 0;
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static U32 g_noSeed = 0;
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static ZSTD_parameters g_params = { 0, 0, 0, 0, 0, 0, 0, 0, ZSTD_greedy };
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void BMK_SetNbIterations(int nbLoops)
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{
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g_nbIterations = nbLoops;
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DISPLAY("- %u iterations -\n", g_nbIterations);
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}
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/*-*******************************************************
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* Private functions
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*********************************************************/
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#if defined(BMK_LEGACY_TIMER)
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static int BMK_GetMilliStart(void)
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{
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/* Based on Legacy ftime()
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* Rolls over every ~ 12.1 days (0x100000/24/60/60)
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* Use GetMilliSpan to correct for rollover */
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struct timeb tb;
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int nCount;
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ftime( &tb );
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nCount = (int) (tb.millitm + (tb.time & 0xfffff) * 1000);
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return nCount;
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}
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#else
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static int BMK_GetMilliStart(void)
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{
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/* Based on newer gettimeofday()
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* Use GetMilliSpan to correct for rollover */
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struct timeval tv;
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int nCount;
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gettimeofday(&tv, NULL);
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nCount = (int) (tv.tv_usec/1000 + (tv.tv_sec & 0xfffff) * 1000);
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return nCount;
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}
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#endif
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static int BMK_GetMilliSpan( int nTimeStart )
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{
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int nSpan = BMK_GetMilliStart() - nTimeStart;
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if ( nSpan < 0 )
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nSpan += 0x100000 * 1000;
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return nSpan;
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}
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static size_t BMK_findMaxMem(U64 requiredMem)
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{
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size_t step = 64 MB;
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BYTE* testmem=NULL;
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requiredMem = (((requiredMem >> 26) + 1) << 26);
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if (requiredMem > maxMemory) requiredMem = maxMemory;
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requiredMem += 2*step;
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while (!testmem) {
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requiredMem -= step;
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testmem = (BYTE*) malloc ((size_t)requiredMem);
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}
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free (testmem);
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return (size_t) (requiredMem - step);
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}
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static U64 BMK_GetFileSize(char* infilename)
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{
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int r;
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#if defined(_MSC_VER)
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struct _stat64 statbuf;
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r = _stat64(infilename, &statbuf);
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#else
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struct stat statbuf;
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r = stat(infilename, &statbuf);
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#endif
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if (r || !S_ISREG(statbuf.st_mode)) return 0; /* No good... */
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return (U64)statbuf.st_size;
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}
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# define FUZ_rotl32(x,r) ((x << r) | (x >> (32 - r)))
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U32 FUZ_rand(U32* src)
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{
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const U32 prime1 = 2654435761U;
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const U32 prime2 = 2246822519U;
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U32 rand32 = *src;
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rand32 *= prime1;
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rand32 += prime2;
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rand32 = FUZ_rotl32(rand32, 13);
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*src = rand32;
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return rand32 >> 5;
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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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size_t cSize;
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U32 cSpeed;
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U32 dSpeed;
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} BMK_result_t;
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typedef struct
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{
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const char* srcPtr;
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size_t srcSize;
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char* cPtr;
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size_t cRoom;
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size_t cSize;
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char* resPtr;
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size_t resSize;
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} blockParam_t;
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#define MIN(a,b) ( (a) < (b) ? (a) : (b) )
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static size_t BMK_benchParam(BMK_result_t* resultPtr,
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const void* srcBuffer, size_t srcSize,
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ZSTD_CCtx* ctx,
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const ZSTD_parameters params)
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{
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const size_t blockSize = g_blockSize ? g_blockSize : srcSize;
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const U32 nbBlocks = (U32) ((srcSize + (blockSize-1)) / blockSize);
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blockParam_t* const blockTable = (blockParam_t*) malloc(nbBlocks * sizeof(blockParam_t));
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const size_t maxCompressedSize = (size_t)nbBlocks * ZSTD_compressBound(blockSize);
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void* const compressedBuffer = malloc(maxCompressedSize);
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void* const resultBuffer = malloc(srcSize);
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U32 Wlog = params.windowLog;
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U32 Clog = params.contentLog;
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U32 Hlog = params.hashLog;
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U32 Slog = params.searchLog;
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U32 Slength = params.searchLength;
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U32 Tlength = params.targetLength;
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ZSTD_strategy strat = params.strategy;
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char name[30] = { 0 };
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U64 crcOrig;
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/* Memory allocation & restrictions */
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snprintf(name, 30, "Sw%02uc%02uh%02us%02ul%1ut%03uS%1u", Wlog, Clog, Hlog, Slog, Slength, Tlength, strat);
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if (!compressedBuffer || !resultBuffer || !blockTable) {
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DISPLAY("\nError: not enough memory!\n");
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free(compressedBuffer);
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free(resultBuffer);
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free(blockTable);
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return 12;
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}
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/* Calculating input Checksum */
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crcOrig = XXH64(srcBuffer, srcSize, 0);
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/* Init blockTable data */
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{
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U32 i;
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size_t remaining = srcSize;
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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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for (i=0; i<nbBlocks; i++) {
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size_t thisBlockSize = MIN(remaining, blockSize);
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blockTable[i].srcPtr = srcPtr;
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blockTable[i].cPtr = cPtr;
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blockTable[i].resPtr = resPtr;
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blockTable[i].srcSize = thisBlockSize;
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blockTable[i].cRoom = ZSTD_compressBound(thisBlockSize);
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srcPtr += thisBlockSize;
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cPtr += blockTable[i].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, 0.10, 1);
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/* Bench */
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{
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U32 loopNb;
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size_t cSize = 0;
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double fastestC = 100000000., fastestD = 100000000.;
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double ratio = 0.;
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U64 crcCheck = 0;
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const int startTime =BMK_GetMilliStart();
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DISPLAY("\r%79s\r", "");
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for (loopNb = 1; loopNb <= g_nbIterations; loopNb++) {
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int nbLoops;
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int milliTime;
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U32 blockNb;
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const int totalTime = BMK_GetMilliSpan(startTime);
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/* early break (slow params) */
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if (totalTime > g_maxParamTime) break;
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/* Compression */
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DISPLAY("\r%1u-%s : %9u ->", loopNb, name, (U32)srcSize);
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memset(compressedBuffer, 0xE5, maxCompressedSize);
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nbLoops = 0;
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milliTime = BMK_GetMilliStart();
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while (BMK_GetMilliStart() == milliTime);
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milliTime = BMK_GetMilliStart();
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while (BMK_GetMilliSpan(milliTime) < TIMELOOP) {
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for (blockNb=0; blockNb<nbBlocks; blockNb++)
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blockTable[blockNb].cSize = 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,
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params);
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nbLoops++;
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}
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milliTime = BMK_GetMilliSpan(milliTime);
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cSize = 0;
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for (blockNb=0; blockNb<nbBlocks; blockNb++)
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cSize += blockTable[blockNb].cSize;
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if ((double)milliTime < fastestC*nbLoops) fastestC = (double)milliTime / nbLoops;
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ratio = (double)srcSize / (double)cSize;
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DISPLAY("\r");
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DISPLAY("%1u-%s : %9u ->", loopNb, name, (U32)srcSize);
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DISPLAY(" %9u (%4.3f),%7.1f MB/s", (U32)cSize, ratio, (double)srcSize / fastestC / 1000.);
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resultPtr->cSize = cSize;
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resultPtr->cSpeed = (U32)((double)srcSize / fastestC);
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#if 1
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/* Decompression */
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memset(resultBuffer, 0xD6, srcSize);
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nbLoops = 0;
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milliTime = BMK_GetMilliStart();
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while (BMK_GetMilliStart() == milliTime);
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milliTime = BMK_GetMilliStart();
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for ( ; BMK_GetMilliSpan(milliTime) < TIMELOOP; nbLoops++) {
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for (blockNb=0; blockNb<nbBlocks; blockNb++)
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blockTable[blockNb].resSize = ZSTD_decompress(blockTable[blockNb].resPtr, blockTable[blockNb].srcSize,
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blockTable[blockNb].cPtr, blockTable[blockNb].cSize);
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}
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milliTime = BMK_GetMilliSpan(milliTime);
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if ((double)milliTime < fastestD*nbLoops) fastestD = (double)milliTime / nbLoops;
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DISPLAY("\r");
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DISPLAY("%1u-%s : %9u -> ", loopNb, name, (U32)srcSize);
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DISPLAY("%9u (%4.3f),%7.1f MB/s, ", (U32)cSize, ratio, (double)srcSize / fastestC / 1000.);
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DISPLAY("%7.1f MB/s", (double)srcSize / fastestD / 1000.);
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resultPtr->dSpeed = (U32)((double)srcSize / fastestD);
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/* CRC Checking */
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crcCheck = XXH64(resultBuffer, srcSize, 0);
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if (crcOrig!=crcCheck) {
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unsigned u;
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unsigned eBlockSize = (unsigned)(MIN(65536*2, blockSize));
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DISPLAY("\n!!! WARNING !!! Invalid Checksum : %x != %x\n", (unsigned)crcOrig, (unsigned)crcCheck);
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for (u=0; u<srcSize; u++) {
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if (((const BYTE*)srcBuffer)[u] != ((BYTE*)resultBuffer)[u]) {
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printf("Decoding error at pos %u (block %u, pos %u) \n", u, u / eBlockSize, u % eBlockSize);
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break;
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} }
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break;
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}
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#endif
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} }
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/* End cleaning */
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DISPLAY("\r");
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free(compressedBuffer);
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free(resultBuffer);
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return 0;
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}
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const char* g_stratName[] = { "ZSTD_fast ",
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"ZSTD_greedy ",
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"ZSTD_lazy ",
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"ZSTD_lazy2 ",
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"ZSTD_btlazy2",
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"ZSTD_btopt " };
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static void BMK_printWinner(FILE* f, U32 cLevel, BMK_result_t result, ZSTD_parameters params, size_t srcSize)
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{
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DISPLAY("\r%79s\r", "");
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fprintf(f," {%3u,%3u,%3u,%3u,%3u,%3u,%3u, %s }, ",
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0, params.windowLog, params.contentLog, params.hashLog, params.searchLog, params.searchLength,
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params.targetLength, g_stratName[(U32)(params.strategy)]);
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fprintf(f,
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"/* level %2u */ /* R:%5.3f at %5.1f MB/s - %5.1f MB/s */\n",
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cLevel, (double)srcSize / result.cSize, (double)result.cSpeed / 1000., (double)result.dSpeed / 1000.);
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}
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static U32 g_cSpeedTarget[NB_LEVELS_TRACKED] = { 0 }; /* NB_LEVELS_TRACKED : checked at main() */
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typedef struct {
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BMK_result_t result;
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ZSTD_parameters params;
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} winnerInfo_t;
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static void BMK_printWinners2(FILE* f, const winnerInfo_t* winners, size_t srcSize)
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{
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unsigned cLevel;
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fprintf(f, "\n /* Proposed configurations : */ \n");
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fprintf(f, " /* l, W, C, H, S, L, T, strat */ \n");
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for (cLevel=0; cLevel <= ZSTD_maxCLevel(); cLevel++)
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BMK_printWinner(f, cLevel, winners[cLevel].result, winners[cLevel].params, srcSize);
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}
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static void BMK_printWinners(FILE* f, const winnerInfo_t* winners, size_t srcSize)
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{
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fseek(f, 0, SEEK_SET);
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BMK_printWinners2(f, winners, srcSize);
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fflush(f);
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BMK_printWinners2(stdout, winners, srcSize);
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}
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static int BMK_seed(winnerInfo_t* winners, const ZSTD_parameters params,
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const void* srcBuffer, size_t srcSize,
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ZSTD_CCtx* ctx)
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{
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BMK_result_t testResult;
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int better = 0;
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unsigned cLevel;
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BMK_benchParam(&testResult, srcBuffer, srcSize, ctx, params);
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for (cLevel = 1; cLevel <= ZSTD_maxCLevel(); cLevel++) {
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if (testResult.cSpeed < g_cSpeedTarget[cLevel])
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continue; /* not fast enough for this level */
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if (winners[cLevel].result.cSize==0) {
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/* first solution for this cLevel */
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winners[cLevel].result = testResult;
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winners[cLevel].params = params;
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BMK_printWinner(stdout, cLevel, testResult, params, srcSize);
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better = 1;
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continue;
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}
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if ((double)testResult.cSize <= ((double)winners[cLevel].result.cSize * (1. + (0.02 / cLevel))) ) {
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/* Validate solution is "good enough" */
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double W_ratio = (double)srcSize / testResult.cSize;
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double O_ratio = (double)srcSize / winners[cLevel].result.cSize;
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double W_ratioNote = log (W_ratio);
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double O_ratioNote = log (O_ratio);
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size_t W_DMemUsed = (1 << params.windowLog) + (16 KB);
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size_t O_DMemUsed = (1 << winners[cLevel].params.windowLog) + (16 KB);
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double W_DMemUsed_note = W_ratioNote * ( 40 + 9*cLevel) - log((double)W_DMemUsed);
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double O_DMemUsed_note = O_ratioNote * ( 40 + 9*cLevel) - log((double)O_DMemUsed);
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|
|
size_t W_CMemUsed = (1 << params.windowLog) + 4 * (1 << params.hashLog) +
|
|
((params.strategy==ZSTD_fast) ? 0 : 4 * (1 << params.contentLog));
|
|
size_t O_CMemUsed = (1 << winners[cLevel].params.windowLog) + 4 * (1 << winners[cLevel].params.hashLog) +
|
|
((winners[cLevel].params.strategy==ZSTD_fast) ? 0 : 4 * (1 << winners[cLevel].params.contentLog));
|
|
double W_CMemUsed_note = W_ratioNote * ( 50 + 13*cLevel) - log((double)W_CMemUsed);
|
|
double O_CMemUsed_note = O_ratioNote * ( 50 + 13*cLevel) - log((double)O_CMemUsed);
|
|
|
|
double W_CSpeed_note = W_ratioNote * ( 30 + 10*cLevel) + log((double)testResult.cSpeed);
|
|
double O_CSpeed_note = O_ratioNote * ( 30 + 10*cLevel) + log((double)winners[cLevel].result.cSpeed);
|
|
|
|
double W_DSpeed_note = W_ratioNote * ( 20 + 2*cLevel) + log((double)testResult.dSpeed);
|
|
double O_DSpeed_note = O_ratioNote * ( 20 + 2*cLevel) + log((double)winners[cLevel].result.dSpeed);
|
|
|
|
|
|
if (W_DMemUsed_note < O_DMemUsed_note) {
|
|
/* uses too much Decompression memory for too little benefit */
|
|
if (W_ratio > O_ratio)
|
|
DISPLAY ("Decompression Memory : %5.3f @ %4.1f MB vs %5.3f @ %4.1f MB : not enough for level %i\n",
|
|
W_ratio, (double)(W_DMemUsed) / 1024 / 1024,
|
|
O_ratio, (double)(O_DMemUsed) / 1024 / 1024, cLevel);
|
|
continue;
|
|
}
|
|
if (W_CMemUsed_note < O_CMemUsed_note) {
|
|
/* uses too much memory for compression for too little benefit */
|
|
if (W_ratio > O_ratio)
|
|
DISPLAY ("Compression Memory : %5.3f @ %4.1f MB vs %5.3f @ %4.1f MB : not enough for level %i\n",
|
|
W_ratio, (double)(W_CMemUsed) / 1024 / 1024,
|
|
O_ratio, (double)(O_CMemUsed) / 1024 / 1024, cLevel);
|
|
continue;
|
|
}
|
|
if (W_CSpeed_note < O_CSpeed_note ) {
|
|
/* too large compression speed difference for the compression benefit */
|
|
if (W_ratio > O_ratio)
|
|
DISPLAY ("Compression Speed : %5.3f @ %4.1f MB/s vs %5.3f @ %4.1f MB/s : not enough for level %i\n",
|
|
W_ratio, (double)(testResult.cSpeed) / 1000.,
|
|
O_ratio, (double)(winners[cLevel].result.cSpeed) / 1000., cLevel);
|
|
continue;
|
|
}
|
|
if (W_DSpeed_note < O_DSpeed_note ) {
|
|
/* too large decompression speed difference for the compression benefit */
|
|
if (W_ratio > O_ratio)
|
|
DISPLAY ("Decompression Speed : %5.3f @ %4.1f MB/s vs %5.3f @ %4.1f MB/s : not enough for level %i\n",
|
|
W_ratio, (double)(testResult.dSpeed) / 1000.,
|
|
O_ratio, (double)(winners[cLevel].result.dSpeed) / 1000., cLevel);
|
|
continue;
|
|
}
|
|
|
|
if (W_ratio < O_ratio)
|
|
DISPLAY("Solution %4.3f selected over %4.3f at level %i, due to better secondary statistics \n", W_ratio, O_ratio, cLevel);
|
|
|
|
winners[cLevel].result = testResult;
|
|
winners[cLevel].params = params;
|
|
BMK_printWinner(stdout, cLevel, testResult, params, srcSize);
|
|
|
|
better = 1;
|
|
} }
|
|
|
|
return better;
|
|
}
|
|
|
|
|
|
/* nullified useless params, to ensure count stats */
|
|
static ZSTD_parameters* sanitizeParams(ZSTD_parameters params)
|
|
{
|
|
g_params = params;
|
|
if (params.strategy == ZSTD_fast)
|
|
g_params.contentLog = 0, g_params.searchLog = 0;
|
|
if (params.strategy != ZSTD_btopt )
|
|
g_params.targetLength = 0;
|
|
return &g_params;
|
|
}
|
|
|
|
|
|
static void paramVariation(ZSTD_parameters* p)
|
|
{
|
|
U32 nbChanges = (FUZ_rand(&g_rand) & 3) + 1;
|
|
for (; nbChanges; nbChanges--) {
|
|
const U32 changeID = FUZ_rand(&g_rand) % 14;
|
|
switch(changeID)
|
|
{
|
|
case 0:
|
|
p->contentLog++; break;
|
|
case 1:
|
|
p->contentLog--; break;
|
|
case 2:
|
|
p->hashLog++; break;
|
|
case 3:
|
|
p->hashLog--; break;
|
|
case 4:
|
|
p->searchLog++; break;
|
|
case 5:
|
|
p->searchLog--; break;
|
|
case 6:
|
|
p->windowLog++; break;
|
|
case 7:
|
|
p->windowLog--; break;
|
|
case 8:
|
|
p->searchLength++; break;
|
|
case 9:
|
|
p->searchLength--; break;
|
|
case 10:
|
|
p->strategy = (ZSTD_strategy)(((U32)p->strategy)+1); break;
|
|
case 11:
|
|
p->strategy = (ZSTD_strategy)(((U32)p->strategy)-1); break;
|
|
case 12:
|
|
p->targetLength *= 1 + ((double)(FUZ_rand(&g_rand)&255)) / 256.; break;
|
|
case 13:
|
|
p->targetLength /= 1 + ((double)(FUZ_rand(&g_rand)&255)) / 256.; break;
|
|
}
|
|
}
|
|
ZSTD_validateParams(p);
|
|
}
|
|
|
|
|
|
#define PARAMTABLELOG 25
|
|
#define PARAMTABLESIZE (1<<PARAMTABLELOG)
|
|
#define PARAMTABLEMASK (PARAMTABLESIZE-1)
|
|
static BYTE g_alreadyTested[PARAMTABLESIZE] = {0}; /* init to zero */
|
|
|
|
#define NB_TESTS_PLAYED(p) \
|
|
g_alreadyTested[(XXH64(sanitizeParams(p), sizeof(p), 0) >> 3) & PARAMTABLEMASK]
|
|
|
|
|
|
#define MAX(a,b) ( (a) > (b) ? (a) : (b) )
|
|
|
|
static void playAround(FILE* f, winnerInfo_t* winners,
|
|
ZSTD_parameters params,
|
|
const void* srcBuffer, size_t srcSize,
|
|
ZSTD_CCtx* ctx)
|
|
{
|
|
int nbVariations = 0;
|
|
const int startTime = BMK_GetMilliStart();
|
|
|
|
while (BMK_GetMilliSpan(startTime) < g_maxVariationTime) {
|
|
ZSTD_parameters p = params;
|
|
|
|
if (nbVariations++ > g_maxNbVariations) break;
|
|
paramVariation(&p);
|
|
|
|
/* exclude faster if already played params */
|
|
if (FUZ_rand(&g_rand) & ((1 << NB_TESTS_PLAYED(p))-1))
|
|
continue;
|
|
|
|
/* test */
|
|
NB_TESTS_PLAYED(p)++;
|
|
if (!BMK_seed(winners, p, srcBuffer, srcSize, ctx)) continue;
|
|
|
|
/* improvement found => search more */
|
|
BMK_printWinners(f, winners, srcSize);
|
|
playAround(f, winners, p, srcBuffer, srcSize, ctx);
|
|
}
|
|
|
|
}
|
|
|
|
|
|
static void potentialRandomParams(ZSTD_parameters* p, U32 inverseChance)
|
|
{
|
|
U32 chance = (FUZ_rand(&g_rand) % (inverseChance+1));
|
|
if (!chance) {
|
|
/* totally random entry */
|
|
p->contentLog = FUZ_rand(&g_rand) % (ZSTD_CONTENTLOG_MAX+1 - ZSTD_CONTENTLOG_MIN) + ZSTD_CONTENTLOG_MIN;
|
|
p->hashLog = FUZ_rand(&g_rand) % (ZSTD_HASHLOG_MAX+1 - ZSTD_HASHLOG_MIN) + ZSTD_HASHLOG_MIN;
|
|
p->searchLog = FUZ_rand(&g_rand) % (ZSTD_SEARCHLOG_MAX+1 - ZSTD_SEARCHLOG_MIN) + ZSTD_SEARCHLOG_MIN;
|
|
p->windowLog = FUZ_rand(&g_rand) % (ZSTD_WINDOWLOG_MAX+1 - ZSTD_WINDOWLOG_MIN) + ZSTD_WINDOWLOG_MIN;
|
|
p->searchLength=FUZ_rand(&g_rand) % (ZSTD_SEARCHLENGTH_MAX+1 - ZSTD_SEARCHLENGTH_MIN) + ZSTD_SEARCHLENGTH_MIN;
|
|
p->targetLength=FUZ_rand(&g_rand) % (ZSTD_TARGETLENGTH_MAX+1 - ZSTD_TARGETLENGTH_MIN) + ZSTD_TARGETLENGTH_MIN;
|
|
p->strategy = (ZSTD_strategy) (FUZ_rand(&g_rand) % (ZSTD_btopt +1));
|
|
ZSTD_validateParams(p);
|
|
}
|
|
}
|
|
|
|
static void BMK_selectRandomStart(
|
|
FILE* f, winnerInfo_t* winners,
|
|
const void* srcBuffer, size_t srcSize,
|
|
ZSTD_CCtx* ctx)
|
|
{
|
|
U32 id = (FUZ_rand(&g_rand) % (ZSTD_maxCLevel()+1));
|
|
if ((id==0) || (winners[id].params.windowLog==0)) {
|
|
/* totally random entry */
|
|
ZSTD_parameters p;
|
|
potentialRandomParams(&p, 1);
|
|
p.srcSize = srcSize;
|
|
ZSTD_validateParams(&p);
|
|
playAround(f, winners, p, srcBuffer, srcSize, ctx);
|
|
}
|
|
else
|
|
playAround(f, winners, winners[id].params, srcBuffer, srcSize, ctx);
|
|
}
|
|
|
|
|
|
static void BMK_benchMem(void* srcBuffer, size_t srcSize)
|
|
{
|
|
ZSTD_CCtx* ctx = ZSTD_createCCtx();
|
|
ZSTD_parameters params;
|
|
winnerInfo_t winners[NB_LEVELS_TRACKED];
|
|
int i;
|
|
unsigned u;
|
|
const char* rfName = "grillResults.txt";
|
|
FILE* f;
|
|
const size_t blockSize = g_blockSize ? g_blockSize : srcSize;
|
|
|
|
if (g_singleRun) {
|
|
BMK_result_t testResult;
|
|
g_params.srcSize = blockSize;
|
|
ZSTD_validateParams(&g_params);
|
|
BMK_benchParam(&testResult, srcBuffer, srcSize, ctx, g_params);
|
|
DISPLAY("\n");
|
|
return;
|
|
}
|
|
|
|
/* init */
|
|
memset(winners, 0, sizeof(winners));
|
|
f = fopen(rfName, "w");
|
|
if (f==NULL) { DISPLAY("error opening %s \n", rfName); exit(1); }
|
|
|
|
if (g_target)
|
|
g_cSpeedTarget[1] = g_target * 1000;
|
|
else {
|
|
/* baseline config for level 1 */
|
|
BMK_result_t testResult;
|
|
params = ZSTD_getParams(1, blockSize);
|
|
BMK_benchParam(&testResult, srcBuffer, srcSize, ctx, params);
|
|
g_cSpeedTarget[1] = (testResult.cSpeed * 31) >> 5;
|
|
}
|
|
|
|
/* establish speed objectives (relative to level 1) */
|
|
for (u=2; u<=ZSTD_maxCLevel(); u++)
|
|
g_cSpeedTarget[u] = (g_cSpeedTarget[u-1] * 25) >> 5;
|
|
|
|
/* populate initial solution */
|
|
{
|
|
const int maxSeeds = g_noSeed ? 1 : ZSTD_maxCLevel();
|
|
for (i=1; i<=maxSeeds; i++) {
|
|
params = ZSTD_getParams(i, blockSize);
|
|
ZSTD_validateParams(¶ms);
|
|
BMK_seed(winners, params, srcBuffer, srcSize, ctx);
|
|
}
|
|
}
|
|
BMK_printWinners(f, winners, srcSize);
|
|
|
|
/* start tests */
|
|
{
|
|
const int milliStart = BMK_GetMilliStart();
|
|
do {
|
|
BMK_selectRandomStart(f, winners, srcBuffer, srcSize, ctx);
|
|
} while (BMK_GetMilliSpan(milliStart) < g_grillDuration);
|
|
}
|
|
|
|
/* end summary */
|
|
BMK_printWinners(f, winners, srcSize);
|
|
DISPLAY("grillParams operations completed \n");
|
|
|
|
/* clean up*/
|
|
fclose(f);
|
|
ZSTD_freeCCtx(ctx);
|
|
}
|
|
|
|
|
|
static int benchSample(void)
|
|
{
|
|
void* origBuff;
|
|
size_t benchedSize = sampleSize;
|
|
const char* name = "Sample 10MiB";
|
|
|
|
/* Allocation */
|
|
origBuff = malloc(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 = 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 optimizeForSize(char* inFileName)
|
|
{
|
|
FILE* inFile;
|
|
U64 inFileSize;
|
|
size_t benchedSize;
|
|
size_t readSize;
|
|
char* origBuff;
|
|
|
|
/* Check file existence */
|
|
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("optimizing for %s : \n", inFileName);
|
|
|
|
{
|
|
ZSTD_CCtx* ctx = ZSTD_createCCtx();
|
|
ZSTD_parameters params;
|
|
winnerInfo_t winner;
|
|
BMK_result_t candidate;
|
|
const size_t blockSize = g_blockSize ? g_blockSize : benchedSize;
|
|
int i;
|
|
|
|
/* init */
|
|
memset(&winner, 0, sizeof(winner));
|
|
winner.result.cSize = (size_t)(-1);
|
|
|
|
/* find best solution from default params */
|
|
{
|
|
const int maxSeeds = g_noSeed ? 1 : ZSTD_maxCLevel();
|
|
for (i=1; i<=maxSeeds; i++) {
|
|
params = ZSTD_getParams(i, blockSize);
|
|
BMK_benchParam(&candidate, origBuff, benchedSize, ctx, params);
|
|
if ( (candidate.cSize < winner.result.cSize)
|
|
||((candidate.cSize == winner.result.cSize) && (candidate.cSpeed > winner.result.cSpeed)) )
|
|
{
|
|
winner.params = params;
|
|
winner.result = candidate;
|
|
BMK_printWinner(stdout, i, winner.result, winner.params, benchedSize);
|
|
} }
|
|
}
|
|
BMK_printWinner(stdout, 99, winner.result, winner.params, benchedSize);
|
|
|
|
/* start tests */
|
|
{
|
|
const int milliStart = BMK_GetMilliStart();
|
|
do {
|
|
params = winner.params;
|
|
paramVariation(¶ms);
|
|
potentialRandomParams(¶ms, 16);
|
|
|
|
/* exclude faster if already played set of params */
|
|
if (FUZ_rand(&g_rand) & ((1 << NB_TESTS_PLAYED(params))-1)) continue;
|
|
|
|
/* test */
|
|
NB_TESTS_PLAYED(params)++;
|
|
BMK_benchParam(&candidate, origBuff, benchedSize, ctx, params);
|
|
|
|
/* improvement found => new winner */
|
|
if ( (candidate.cSize < winner.result.cSize)
|
|
||((candidate.cSize == winner.result.cSize) && (candidate.cSpeed > winner.result.cSpeed)) ) {
|
|
winner.params = params;
|
|
winner.result = candidate;
|
|
BMK_printWinner(stdout, 99, winner.result, winner.params, benchedSize);
|
|
}
|
|
} while (BMK_GetMilliSpan(milliStart) < g_grillDuration);
|
|
}
|
|
|
|
/* end summary */
|
|
BMK_printWinner(stdout, 99, winner.result, winner.params, benchedSize);
|
|
DISPLAY("grillParams size - optimizer completed \n");
|
|
|
|
/* clean up*/
|
|
ZSTD_freeCCtx(ctx);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int usage(char* exename)
|
|
{
|
|
DISPLAY( "Usage :\n");
|
|
DISPLAY( " %s [arg] file\n", exename);
|
|
DISPLAY( "Arguments :\n");
|
|
DISPLAY( " file : path to the file used as reference (if none, generates a compressible sample)\n");
|
|
DISPLAY( " -H/-h : Help (this text + advanced options)\n");
|
|
return 0;
|
|
}
|
|
|
|
static int usage_advanced(void)
|
|
{
|
|
DISPLAY( "\nAdvanced options :\n");
|
|
DISPLAY( " -i# : iteration loops [1-9](default : %i)\n", NBLOOPS);
|
|
DISPLAY( " -B# : cut input into blocks of size # (default : single block)\n");
|
|
DISPLAY( " -P# : generated sample compressibility (default : %.1f%%)\n", COMPRESSIBILITY_DEFAULT * 100);
|
|
DISPLAY( " -S : Single run\n");
|
|
return 0;
|
|
}
|
|
|
|
static int badusage(char* exename)
|
|
{
|
|
DISPLAY("Wrong parameters\n");
|
|
usage(exename);
|
|
return 1;
|
|
}
|
|
|
|
int main(int argc, char** argv)
|
|
{
|
|
int i,
|
|
filenamesStart=0,
|
|
result;
|
|
char* exename=argv[0];
|
|
char* input_filename=0;
|
|
U32 optimizer = 0;
|
|
U32 main_pause = 0;
|
|
|
|
/* checks */
|
|
if (NB_LEVELS_TRACKED <= ZSTD_maxCLevel()) {
|
|
DISPLAY("Error : NB_LEVELS_TRACKED <= ZSTD_maxCLevel() \n");
|
|
exit(1);
|
|
}
|
|
|
|
/* 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 */
|
|
|
|
if(!strcmp(argument,"--no-seed")) { g_noSeed = 1; continue; }
|
|
|
|
/* Decode command (note : aggregated commands are allowed) */
|
|
if (argument[0]=='-') {
|
|
argument++;
|
|
|
|
while (argument[0]!=0) {
|
|
|
|
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; argument++; break;
|
|
|
|
/* Modify Nb Iterations */
|
|
case 'i':
|
|
argument++;
|
|
if ((argument[0] >='0') && (argument[0] <='9'))
|
|
g_nbIterations = *argument++ - '0';
|
|
break;
|
|
|
|
/* Sample compressibility (when no file provided) */
|
|
case 'P':
|
|
argument++;
|
|
{
|
|
U32 proba32 = 0;
|
|
while ((argument[0]>= '0') && (argument[0]<= '9')) {
|
|
proba32 *= 10;
|
|
proba32 += argument[0] - '0';
|
|
argument++;
|
|
}
|
|
g_compressibility = (double)proba32 / 100.;
|
|
}
|
|
break;
|
|
|
|
case 'O':
|
|
argument++;
|
|
optimizer=1;
|
|
break;
|
|
|
|
/* Run Single conf */
|
|
case 'S':
|
|
g_singleRun = 1;
|
|
argument++;
|
|
g_params = ZSTD_getParams(2, g_blockSize);
|
|
for ( ; ; ) {
|
|
switch(*argument)
|
|
{
|
|
case 'w':
|
|
g_params.windowLog = 0;
|
|
argument++;
|
|
while ((*argument>= '0') && (*argument<='9'))
|
|
g_params.windowLog *= 10, g_params.windowLog += *argument++ - '0';
|
|
continue;
|
|
case 'c':
|
|
g_params.contentLog = 0;
|
|
argument++;
|
|
while ((*argument>= '0') && (*argument<='9'))
|
|
g_params.contentLog *= 10, g_params.contentLog += *argument++ - '0';
|
|
continue;
|
|
case 'h':
|
|
g_params.hashLog = 0;
|
|
argument++;
|
|
while ((*argument>= '0') && (*argument<='9'))
|
|
g_params.hashLog *= 10, g_params.hashLog += *argument++ - '0';
|
|
continue;
|
|
case 's':
|
|
g_params.searchLog = 0;
|
|
argument++;
|
|
while ((*argument>= '0') && (*argument<='9'))
|
|
g_params.searchLog *= 10, g_params.searchLog += *argument++ - '0';
|
|
continue;
|
|
case 'l': /* search length */
|
|
g_params.searchLength = 0;
|
|
argument++;
|
|
while ((*argument>= '0') && (*argument<='9'))
|
|
g_params.searchLength *= 10, g_params.searchLength += *argument++ - '0';
|
|
continue;
|
|
case 't': /* target length */
|
|
g_params.targetLength = 0;
|
|
argument++;
|
|
while ((*argument>= '0') && (*argument<='9'))
|
|
g_params.targetLength *= 10, g_params.targetLength += *argument++ - '0';
|
|
continue;
|
|
case 'S': /* strategy */
|
|
argument++;
|
|
while ((*argument>= '0') && (*argument<='9'))
|
|
g_params.strategy = (ZSTD_strategy)(*argument++ - '0');
|
|
continue;
|
|
case 'L':
|
|
{
|
|
int cLevel = 0;
|
|
argument++;
|
|
while ((*argument>= '0') && (*argument<='9'))
|
|
cLevel *= 10, cLevel += *argument++ - '0';
|
|
g_params = ZSTD_getParams(cLevel, g_blockSize);
|
|
continue;
|
|
}
|
|
default : ;
|
|
}
|
|
break;
|
|
}
|
|
break;
|
|
|
|
/* target level1 speed objective, in MB/s */
|
|
case 'T':
|
|
argument++;
|
|
g_target = 0;
|
|
while ((*argument >= '0') && (*argument <= '9')) {
|
|
g_target *= 10;
|
|
g_target += *argument - '0';
|
|
argument++;
|
|
}
|
|
break;
|
|
|
|
/* cut input into blocks */
|
|
case 'B':
|
|
{
|
|
g_blockSize = 0;
|
|
argument++;
|
|
while ((*argument >='0') && (*argument <='9'))
|
|
g_blockSize *= 10, g_blockSize += *argument++ - '0';
|
|
if (*argument=='K') g_blockSize<<=10, argument++; /* allows using KB notation */
|
|
if (*argument=='M') g_blockSize<<=20, argument++;
|
|
if (*argument=='B') argument++;
|
|
DISPLAY("using %u KB block size \n", g_blockSize>>10);
|
|
}
|
|
break;
|
|
|
|
/* Unknown command */
|
|
default : return badusage(exename);
|
|
}
|
|
}
|
|
continue;
|
|
}
|
|
|
|
/* first provided filename is input */
|
|
if (!input_filename) { input_filename=argument; filenamesStart=i; continue; }
|
|
}
|
|
|
|
if (filenamesStart==0)
|
|
result = benchSample();
|
|
else {
|
|
if (optimizer)
|
|
result = optimizeForSize(input_filename);
|
|
else
|
|
result = benchFiles(argv+filenamesStart, argc-filenamesStart);
|
|
}
|
|
|
|
if (main_pause) { int unused; printf("press enter...\n"); unused = getchar(); (void)unused; }
|
|
|
|
return result;
|
|
}
|