8ac549f10a
Makefile : can specify version number git-svn-id: https://lz4.googlecode.com/svn/trunk@109 650e7d94-2a16-8b24-b05c-7c0b3f6821cd
707 lines
24 KiB
C
707 lines
24 KiB
C
/*
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bench.c - Demo program to benchmark open-source compression algorithm
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Copyright (C) Yann Collet 2012-2013
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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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- LZ4 homepage : http://fastcompression.blogspot.com/p/lz4.html
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- LZ4 source repository : http://code.google.com/p/lz4/
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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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//**************************************
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// Includes
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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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// 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 "lz4.h"
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#define COMPRESSOR0 LZ4_compress
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#include "lz4hc.h"
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#define COMPRESSOR1 LZ4_compressHC
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#define DEFAULTCOMPRESSOR COMPRESSOR0
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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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// GCC does not support _rotl outside of Windows
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#if !defined(_WIN32)
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# define _rotl(x,r) ((x << r) | (x >> (32 - r)))
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#endif
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//**************************************
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// Basic Types
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//**************************************
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#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L // C99
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# include <stdint.h>
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typedef uint8_t BYTE;
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typedef uint16_t U16;
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typedef uint32_t U32;
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typedef int32_t S32;
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typedef uint64_t U64;
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#else
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typedef unsigned char BYTE;
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typedef unsigned short U16;
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typedef unsigned int U32;
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typedef signed int S32;
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typedef unsigned long long U64;
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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 "LZ4 speed analyzer"
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#ifndef LZ4_VERSION
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# define LZ4_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, LZ4_VERSION, (int)(sizeof(void*)*8), AUTHOR, __DATE__
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#define NBLOOPS 6
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#define TIMELOOP 2500
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#define KNUTH 2654435761U
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#define MAX_MEM (1984<<20)
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#define DEFAULT_CHUNKSIZE (4<<20)
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#define ALL_COMPRESSORS -1
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#define ALL_DECOMPRESSORS -1
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//**************************************
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// Local structures
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//**************************************
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struct chunkParameters
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{
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U32 id;
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char* origBuffer;
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char* compressedBuffer;
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int origSize;
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int compressedSize;
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};
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//**************************************
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// MACRO
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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 int chunkSize = DEFAULT_CHUNKSIZE;
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static int nbIterations = NBLOOPS;
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static int BMK_pause = 0;
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static int compressionTest = 1;
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static int decompressionTest = 1;
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static int compressionAlgo = ALL_COMPRESSORS;
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static int decompressionAlgo = ALL_DECOMPRESSORS;
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void BMK_SetBlocksize(int bsize)
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{
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chunkSize = bsize;
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DISPLAY("-Using Block Size of %i KB-\n", chunkSize>>10);
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}
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void BMK_SetNbIterations(int nbLoops)
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{
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nbIterations = nbLoops;
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DISPLAY("- %i iterations -\n", nbIterations);
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}
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void BMK_SetPause()
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{
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BMK_pause = 1;
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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()
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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()
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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 = (64U<<20); // 64 MB
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BYTE* testmem=NULL;
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requiredMem = (((requiredMem >> 25) + 1) << 26);
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if (requiredMem > MAX_MEM) requiredMem = MAX_MEM;
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requiredMem += 2*step;
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while (!testmem)
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{
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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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//*********************************************************
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// Public function
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//*********************************************************
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static inline int local_LZ4_compress_limitedOutput(const char* in, char* out, int inSize)
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{
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return LZ4_compress_limitedOutput(in, out, inSize, LZ4_compressBound(inSize));
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}
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static void* ctx;
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static inline int local_LZ4_compress_continue(const char* in, char* out, int inSize)
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{
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return LZ4_compress_continue(ctx, in, out, inSize);
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}
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static inline int local_LZ4_compress_limitedOutput_continue(const char* in, char* out, int inSize)
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{
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return LZ4_compress_limitedOutput_continue(ctx, in, out, inSize, LZ4_compressBound(inSize));
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}
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static inline int local_LZ4_compressHC_limitedOutput(const char* in, char* out, int inSize)
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{
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return LZ4_compressHC_limitedOutput(in, out, inSize, LZ4_compressBound(inSize));
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}
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static inline int local_LZ4_compressHC_continue(const char* in, char* out, int inSize)
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{
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return LZ4_compressHC_continue(ctx, in, out, inSize);
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}
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static inline int local_LZ4_compressHC_limitedOutput_continue(const char* in, char* out, int inSize)
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{
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return LZ4_compressHC_limitedOutput_continue(ctx, in, out, inSize, LZ4_compressBound(inSize));
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}
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static inline int local_LZ4_decompress_fast(const char* in, char* out, int inSize, int outSize)
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{
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(void)inSize;
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LZ4_decompress_fast(in, out, outSize);
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return outSize;
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}
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static inline int local_LZ4_decompress_fast_withPrefix64k(const char* in, char* out, int inSize, int outSize)
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{
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(void)inSize;
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LZ4_decompress_fast_withPrefix64k(in, out, outSize);
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return outSize;
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}
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static inline int local_LZ4_decompress_safe_partial(const char* in, char* out, int inSize, int outSize)
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{
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return LZ4_decompress_safe_partial(in, out, inSize, outSize - 5, outSize);
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}
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int fullSpeedBench(char** fileNamesTable, int nbFiles)
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{
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int fileIdx=0;
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char* orig_buff;
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# define NB_COMPRESSION_ALGORITHMS 8
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# define MINCOMPRESSIONCHAR '0'
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# define MAXCOMPRESSIONCHAR (MINCOMPRESSIONCHAR + NB_COMPRESSION_ALGORITHMS)
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static char* compressionNames[] = { "LZ4_compress", "LZ4_compress_limitedOutput", "LZ4_compress_continue", "LZ4_compress_limitedOutput_continue", "LZ4_compressHC", "LZ4_compressHC_limitedOutput", "LZ4_compressHC_continue", "LZ4_compressHC_limitedOutput_continue" };
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double totalCTime[NB_COMPRESSION_ALGORITHMS] = {0};
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double totalCSize[NB_COMPRESSION_ALGORITHMS] = {0};
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# define NB_DECOMPRESSION_ALGORITHMS 5
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# define MINDECOMPRESSIONCHAR '0'
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# define MAXDECOMPRESSIONCHAR (MINDECOMPRESSIONCHAR + NB_DECOMPRESSION_ALGORITHMS)
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static char* decompressionNames[] = { "LZ4_decompress_fast", "LZ4_decompress_fast_withPrefix64k", "LZ4_decompress_safe", "LZ4_decompress_safe_withPrefix64k", "LZ4_decompress_safe_partial" };
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double totalDTime[NB_DECOMPRESSION_ALGORITHMS] = {0};
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U64 totals = 0;
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// Loop for each file
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while (fileIdx<nbFiles)
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{
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FILE* inFile;
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char* inFileName;
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U64 inFileSize;
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size_t benchedSize;
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int nbChunks;
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int maxCompressedChunkSize;
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struct chunkParameters* chunkP;
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size_t readSize;
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char* compressed_buff; int compressedBuffSize;
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U32 crcOriginal;
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// Check file existence
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inFileName = fileNamesTable[fileIdx++];
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inFile = fopen( inFileName, "rb" );
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if (inFile==NULL)
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{
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DISPLAY( "Pb opening %s\n", inFileName);
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return 11;
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}
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// Memory allocation & restrictions
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inFileSize = BMK_GetFileSize(inFileName);
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benchedSize = (size_t) BMK_findMaxMem(inFileSize) / 2;
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if ((U64)benchedSize > inFileSize) benchedSize = (size_t)inFileSize;
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if (benchedSize < inFileSize)
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{
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DISPLAY("Not enough memory for '%s' full size; testing %i MB only...\n", inFileName, (int)(benchedSize>>20));
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}
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// Alloc
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chunkP = (struct chunkParameters*) malloc(((benchedSize / chunkSize)+1) * sizeof(struct chunkParameters));
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orig_buff = (char*) malloc((size_t)benchedSize);
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nbChunks = (int) (benchedSize / chunkSize) + 1;
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maxCompressedChunkSize = LZ4_compressBound(chunkSize);
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compressedBuffSize = nbChunks * maxCompressedChunkSize;
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compressed_buff = (char*)malloc((size_t)compressedBuffSize);
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if(!orig_buff || !compressed_buff)
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{
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DISPLAY("\nError: not enough memory!\n");
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free(orig_buff);
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free(compressed_buff);
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free(chunkP);
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fclose(inFile);
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return 12;
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}
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// Init chunks data
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{
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int i;
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size_t remaining = benchedSize;
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char* in = orig_buff;
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char* out = compressed_buff;
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for (i=0; i<nbChunks; i++)
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{
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chunkP[i].id = i;
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chunkP[i].origBuffer = in; in += chunkSize;
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if ((int)remaining > chunkSize) { chunkP[i].origSize = chunkSize; remaining -= chunkSize; } else { chunkP[i].origSize = (int)remaining; remaining = 0; }
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chunkP[i].compressedBuffer = out; out += maxCompressedChunkSize;
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chunkP[i].compressedSize = 0;
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}
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}
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// Fill input buffer
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DISPLAY("Loading %s... \r", inFileName);
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readSize = fread(orig_buff, 1, benchedSize, inFile);
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fclose(inFile);
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if(readSize != benchedSize)
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{
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DISPLAY("\nError: problem reading file '%s' !! \n", inFileName);
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free(orig_buff);
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free(compressed_buff);
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free(chunkP);
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return 13;
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}
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// Calculating input Checksum
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crcOriginal = XXH32(orig_buff, (unsigned int)benchedSize,0);
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// Bench
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{
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int loopNb, nb_loops, chunkNb, cAlgNb, dAlgNb;
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size_t cSize=0;
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double ratio=0.;
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DISPLAY("\r%79s\r", "");
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DISPLAY(" %s : \n", inFileName);
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// Compression Algorithms
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for (cAlgNb=0; (cAlgNb < NB_COMPRESSION_ALGORITHMS) && (compressionTest); cAlgNb++)
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{
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char* cName = compressionNames[cAlgNb];
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int (*compressionFunction)(const char*, char*, int);
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void* (*initFunction)(const char*) = NULL;
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double bestTime = 100000000.;
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if ((compressionAlgo != ALL_COMPRESSORS) && (compressionAlgo != cAlgNb)) continue;
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switch(cAlgNb)
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{
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case 0: compressionFunction = LZ4_compress; break;
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case 1: compressionFunction = local_LZ4_compress_limitedOutput; break;
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case 2: compressionFunction = local_LZ4_compress_continue; initFunction = LZ4_create; break;
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case 3: compressionFunction = local_LZ4_compress_limitedOutput_continue; initFunction = LZ4_create; break;
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case 4: compressionFunction = LZ4_compressHC; break;
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case 5: compressionFunction = local_LZ4_compressHC_limitedOutput; break;
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case 6: compressionFunction = local_LZ4_compressHC_continue; initFunction = LZ4_createHC; break;
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case 7: compressionFunction = local_LZ4_compressHC_limitedOutput_continue; initFunction = LZ4_createHC; break;
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default : DISPLAY("ERROR ! Bad algorithm Id !! \n"); free(chunkP); return 1;
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}
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for (loopNb = 1; loopNb <= nbIterations; loopNb++)
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{
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double averageTime;
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int milliTime;
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DISPLAY("%1i-%-19.19s : %9i ->\r", loopNb, cName, (int)benchedSize);
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{ size_t i; for (i=0; i<benchedSize; i++) compressed_buff[i]=(char)i; } // warmimg up memory
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nb_loops = 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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{
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if (initFunction!=NULL) ctx = initFunction(chunkP[0].origBuffer);
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for (chunkNb=0; chunkNb<nbChunks; chunkNb++)
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{
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chunkP[chunkNb].compressedSize = compressionFunction(chunkP[chunkNb].origBuffer, chunkP[chunkNb].compressedBuffer, chunkP[chunkNb].origSize);
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if (chunkP[chunkNb].compressedSize==0) DISPLAY("ERROR ! %s() = 0 !! \n", cName), exit(1);
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}
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if (initFunction!=NULL) free(ctx);
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nb_loops++;
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}
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milliTime = BMK_GetMilliSpan(milliTime);
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averageTime = (double)milliTime / nb_loops;
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if (averageTime < bestTime) bestTime = averageTime;
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cSize=0; for (chunkNb=0; chunkNb<nbChunks; chunkNb++) cSize += chunkP[chunkNb].compressedSize;
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ratio = (double)cSize/(double)benchedSize*100.;
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DISPLAY("%1i-%-19.19s : %9i -> %9i (%5.2f%%),%7.1f MB/s\r", loopNb, cName, (int)benchedSize, (int)cSize, ratio, (double)benchedSize / bestTime / 1000.);
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}
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if (ratio<100.)
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DISPLAY("%-21.21s : %9i -> %9i (%5.2f%%),%7.1f MB/s\n", cName, (int)benchedSize, (int)cSize, ratio, (double)benchedSize / bestTime / 1000.);
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else
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DISPLAY("%-21.21s : %9i -> %9i (%5.1f%%),%7.1f MB/s\n", cName, (int)benchedSize, (int)cSize, ratio, (double)benchedSize / bestTime / 1000.);
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totalCTime[cAlgNb] += bestTime;
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totalCSize[cAlgNb] += cSize;
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}
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// Prepare layout for decompression
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for (chunkNb=0; chunkNb<nbChunks; chunkNb++)
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{
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chunkP[chunkNb].compressedSize = LZ4_compress(chunkP[chunkNb].origBuffer, chunkP[chunkNb].compressedBuffer, chunkP[chunkNb].origSize);
|
|
if (chunkP[chunkNb].compressedSize==0) DISPLAY("ERROR ! %s() = 0 !! \n", compressionNames[0]), exit(1);
|
|
}
|
|
{ size_t i; for (i=0; i<benchedSize; i++) orig_buff[i]=0; } // zeroing source area, for CRC checking
|
|
|
|
// Decompression Algorithms
|
|
for (dAlgNb=0; (dAlgNb < NB_DECOMPRESSION_ALGORITHMS) && (decompressionTest); dAlgNb++)
|
|
{
|
|
char* dName = decompressionNames[dAlgNb];
|
|
int (*decompressionFunction)(const char*, char*, int, int);
|
|
double bestTime = 100000000.;
|
|
|
|
if ((decompressionAlgo != ALL_DECOMPRESSORS) && (decompressionAlgo != dAlgNb)) continue;
|
|
|
|
switch(dAlgNb)
|
|
{
|
|
case 0: decompressionFunction = local_LZ4_decompress_fast; break;
|
|
case 1: decompressionFunction = local_LZ4_decompress_fast_withPrefix64k; break;
|
|
case 2: decompressionFunction = LZ4_decompress_safe; break;
|
|
case 3: decompressionFunction = LZ4_decompress_safe_withPrefix64k; break;
|
|
case 4: decompressionFunction = local_LZ4_decompress_safe_partial; break;
|
|
default : DISPLAY("ERROR ! Bad algorithm Id !! \n"); free(chunkP); return 1;
|
|
}
|
|
|
|
for (loopNb = 1; loopNb <= nbIterations; loopNb++)
|
|
{
|
|
double averageTime;
|
|
int milliTime;
|
|
U32 crcDecoded;
|
|
|
|
DISPLAY("%1i-%-24.24s :%10i ->\r", loopNb, dName, (int)benchedSize);
|
|
|
|
nb_loops = 0;
|
|
milliTime = BMK_GetMilliStart();
|
|
while(BMK_GetMilliStart() == milliTime);
|
|
milliTime = BMK_GetMilliStart();
|
|
while(BMK_GetMilliSpan(milliTime) < TIMELOOP)
|
|
{
|
|
for (chunkNb=0; chunkNb<nbChunks; chunkNb++)
|
|
{
|
|
int decodedSize = decompressionFunction(chunkP[chunkNb].compressedBuffer, chunkP[chunkNb].origBuffer, chunkP[chunkNb].compressedSize, chunkP[chunkNb].origSize);
|
|
if (chunkP[chunkNb].origSize != decodedSize) DISPLAY("ERROR ! %s() == %i != %i !! \n", dName, decodedSize, chunkP[chunkNb].origSize), exit(1);
|
|
}
|
|
nb_loops++;
|
|
}
|
|
milliTime = BMK_GetMilliSpan(milliTime);
|
|
|
|
averageTime = (double)milliTime / nb_loops;
|
|
if (averageTime < bestTime) bestTime = averageTime;
|
|
|
|
DISPLAY("%1i-%-24.24s :%10i -> %7.1f MB/s\r", loopNb, dName, (int)benchedSize, (double)benchedSize / bestTime / 1000.);
|
|
|
|
// CRC Checking
|
|
crcDecoded = XXH32(orig_buff, (int)benchedSize, 0);
|
|
if (crcOriginal!=crcDecoded) { DISPLAY("\n!!! WARNING !!! %14s : Invalid Checksum : %x != %x\n", inFileName, (unsigned)crcOriginal, (unsigned)crcDecoded); exit(1); }
|
|
}
|
|
|
|
DISPLAY("%-26.26s :%10i -> %7.1f MB/s\n", dName, (int)benchedSize, (double)benchedSize / bestTime / 1000.);
|
|
|
|
totalDTime[dAlgNb] += bestTime;
|
|
}
|
|
|
|
totals += benchedSize;
|
|
}
|
|
|
|
free(orig_buff);
|
|
free(compressed_buff);
|
|
free(chunkP);
|
|
}
|
|
|
|
if (nbFiles > 1)
|
|
{
|
|
int AlgNb;
|
|
|
|
DISPLAY(" ** TOTAL ** : \n");
|
|
for (AlgNb = 0; (AlgNb < NB_COMPRESSION_ALGORITHMS) && (compressionTest); AlgNb ++)
|
|
{
|
|
char* cName = compressionNames[AlgNb];
|
|
if ((compressionAlgo != ALL_COMPRESSORS) && (compressionAlgo != AlgNb)) continue;
|
|
DISPLAY("%-21.21s :%10llu ->%10llu (%5.2f%%), %6.1f MB/s\n", cName, (long long unsigned int)totals, (long long unsigned int)totalCSize[AlgNb], (double)totalCSize[AlgNb]/(double)totals*100., (double)totals/totalCTime[AlgNb]/1000.);
|
|
}
|
|
for (AlgNb = 0; (AlgNb < NB_DECOMPRESSION_ALGORITHMS) && (decompressionTest); AlgNb ++)
|
|
{
|
|
char* dName = decompressionNames[AlgNb];
|
|
if ((decompressionAlgo != ALL_DECOMPRESSORS) && (decompressionAlgo != AlgNb)) continue;
|
|
DISPLAY("%-21.21s :%10llu -> %6.1f MB/s\n", dName, (long long unsigned int)totals, (double)totals/totalDTime[AlgNb]/1000.);
|
|
}
|
|
}
|
|
|
|
if (BMK_pause) { printf("press enter...\n"); getchar(); }
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
int usage(char* exename)
|
|
{
|
|
DISPLAY( "Usage :\n");
|
|
DISPLAY( " %s [arg] file1 file2 ... fileX\n", exename);
|
|
DISPLAY( "Arguments :\n");
|
|
DISPLAY( " -c : compression tests only\n");
|
|
DISPLAY( " -d : decompression tests only\n");
|
|
DISPLAY( " -H/-h : Help (this text + advanced options)\n");
|
|
return 0;
|
|
}
|
|
|
|
int usage_advanced()
|
|
{
|
|
DISPLAY( "\nAdvanced options :\n");
|
|
DISPLAY( " -c# : test only compression function # [%c-%c]\n", MINCOMPRESSIONCHAR, MAXCOMPRESSIONCHAR);
|
|
DISPLAY( " -d# : test only compression function # [%c-%c]\n", MINDECOMPRESSIONCHAR, MAXDECOMPRESSIONCHAR);
|
|
DISPLAY( " -i# : iteration loops [1-9](default : %i)\n", NBLOOPS);
|
|
DISPLAY( " -B# : Block size [4-7](default : 7)\n");
|
|
//DISPLAY( " -BD : Block dependency (improve compression ratio)\n");
|
|
return 0;
|
|
}
|
|
|
|
int badusage(char* exename)
|
|
{
|
|
DISPLAY("Wrong parameters\n");
|
|
usage(exename);
|
|
return 0;
|
|
}
|
|
|
|
int main(int argc, char** argv)
|
|
{
|
|
int i,
|
|
filenamesStart=2;
|
|
char* exename=argv[0];
|
|
char* input_filename=0;
|
|
|
|
// Welcome message
|
|
DISPLAY( WELCOME_MESSAGE);
|
|
|
|
if (argc<2) { 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])
|
|
{
|
|
// Select compression algorithm only
|
|
case 'c':
|
|
decompressionTest = 0;
|
|
if ((argument[1]>= MINCOMPRESSIONCHAR) && (argument[1]<= MAXCOMPRESSIONCHAR))
|
|
compressionAlgo = argument[1] - '0', argument++;
|
|
break;
|
|
|
|
// Select decompression algorithm only
|
|
case 'd':
|
|
compressionTest = 0;
|
|
if ((argument[1]>= MINDECOMPRESSIONCHAR) && (argument[1]<= MAXDECOMPRESSIONCHAR))
|
|
decompressionAlgo = argument[1] - '0', argument++;
|
|
break;
|
|
|
|
// Display help on usage
|
|
case 'h' :
|
|
case 'H': usage(exename); usage_advanced(); return 0;
|
|
|
|
// Modify Block Properties
|
|
case 'B':
|
|
while (argument[1]!=0)
|
|
switch(argument[1])
|
|
{
|
|
case '4':
|
|
case '5':
|
|
case '6':
|
|
case '7':
|
|
{
|
|
int B = argument[1] - '0';
|
|
int S = 1 << (8 + 2*B);
|
|
BMK_SetBlocksize(S);
|
|
argument++;
|
|
break;
|
|
}
|
|
case 'D': argument++; break;
|
|
default : goto _exit_blockProperties;
|
|
}
|
|
_exit_blockProperties:
|
|
break;
|
|
|
|
// Modify Nb Iterations
|
|
case 'i':
|
|
if ((argument[1] >='1') && (argument[1] <='9'))
|
|
{
|
|
int iters = argument[1] - '0';
|
|
BMK_SetNbIterations(iters);
|
|
argument++;
|
|
}
|
|
break;
|
|
|
|
// Pause at the end (hidden option)
|
|
case 'p': BMK_SetPause(); break;
|
|
|
|
// Unrecognised command
|
|
default : badusage(exename); return 1;
|
|
}
|
|
}
|
|
continue;
|
|
}
|
|
|
|
// first provided filename is input
|
|
if (!input_filename) { input_filename=argument; filenamesStart=i; continue; }
|
|
|
|
}
|
|
|
|
// No input filename ==> Error
|
|
if(!input_filename) { badusage(exename); return 1; }
|
|
|
|
return fullSpeedBench(argv+filenamesStart, argc-filenamesStart);
|
|
|
|
}
|
|
|