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zstd/zlibWrapper/examples/zwrapbench.c

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/**
* Copyright (c) 2016-present, Yann Collet, Przemyslaw Skibinski, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
/* *************************************
* Includes
***************************************/
#include "util.h" /* Compiler options, UTIL_GetFileSize, UTIL_sleep */
#include <stdlib.h> /* malloc, free */
#include <string.h> /* memset */
#include <stdio.h> /* fprintf, fopen, ftello64 */
#include <time.h> /* clock_t, clock, CLOCKS_PER_SEC */
#include <ctype.h> /* toupper */
#include "mem.h"
#define ZSTD_STATIC_LINKING_ONLY
#include "zstd.h"
#include "datagen.h" /* RDG_genBuffer */
#include "xxhash.h"
#include "zstd_zlibwrapper.h"
/*-************************************
* Tuning parameters
**************************************/
#ifndef ZSTDCLI_CLEVEL_DEFAULT
# define ZSTDCLI_CLEVEL_DEFAULT 3
#endif
/*-************************************
* Constants
**************************************/
#define COMPRESSOR_NAME "Zstandard wrapper for zlib command line interface"
#ifndef ZSTD_VERSION
# define ZSTD_VERSION "v" ZSTD_VERSION_STRING
#endif
#define AUTHOR "Yann Collet"
#define WELCOME_MESSAGE "*** %s %i-bits %s, by %s ***\n", COMPRESSOR_NAME, (int)(sizeof(size_t)*8), ZSTD_VERSION, AUTHOR
#ifndef ZSTD_GIT_COMMIT
# define ZSTD_GIT_COMMIT_STRING ""
#else
# define ZSTD_GIT_COMMIT_STRING ZSTD_EXPAND_AND_QUOTE(ZSTD_GIT_COMMIT)
#endif
#define NBLOOPS 3
#define TIMELOOP_MICROSEC 1*1000000ULL /* 1 second */
#define ACTIVEPERIOD_MICROSEC 70*1000000ULL /* 70 seconds */
#define COOLPERIOD_SEC 10
#define KB *(1 <<10)
#define MB *(1 <<20)
#define GB *(1U<<30)
static const size_t maxMemory = (sizeof(size_t)==4) ? (2 GB - 64 MB) : (size_t)(1ULL << ((sizeof(size_t)*8)-31));
static U32 g_compressibilityDefault = 50;
/* *************************************
* console display
***************************************/
#define DEFAULT_DISPLAY_LEVEL 2
#define DISPLAY(...) fprintf(displayOut, __VA_ARGS__)
#define DISPLAYLEVEL(l, ...) if (g_displayLevel>=l) { DISPLAY(__VA_ARGS__); }
static int g_displayLevel = DEFAULT_DISPLAY_LEVEL; /* 0 : no display; 1: errors; 2 : + result + interaction + warnings; 3 : + progression; 4 : + information */
static FILE* displayOut;
#define DISPLAYUPDATE(l, ...) if (g_displayLevel>=l) { \
if ((clock() - g_time > refreshRate) || (g_displayLevel>=4)) \
{ g_time = clock(); DISPLAY(__VA_ARGS__); \
if (g_displayLevel>=4) fflush(displayOut); } }
static const clock_t refreshRate = CLOCKS_PER_SEC * 15 / 100;
static clock_t g_time = 0;
/* *************************************
* Exceptions
***************************************/
#ifndef DEBUG
# define DEBUG 0
#endif
#define DEBUGOUTPUT(...) if (DEBUG) DISPLAY(__VA_ARGS__);
#define EXM_THROW(error, ...) \
{ \
DEBUGOUTPUT("Error defined at %s, line %i : \n", __FILE__, __LINE__); \
DISPLAYLEVEL(1, "Error %i : ", error); \
DISPLAYLEVEL(1, __VA_ARGS__); \
DISPLAYLEVEL(1, "\n"); \
exit(error); \
}
/* *************************************
* Benchmark Parameters
***************************************/
static U32 g_nbIterations = NBLOOPS;
static size_t g_blockSize = 0;
int g_additionalParam = 0;
void BMK_setNotificationLevel(unsigned level) { g_displayLevel=level; }
void BMK_setAdditionalParam(int additionalParam) { g_additionalParam=additionalParam; }
void BMK_SetNbIterations(unsigned nbLoops)
{
g_nbIterations = nbLoops;
DISPLAYLEVEL(3, "- test >= %u seconds per compression / decompression -\n", g_nbIterations);
}
void BMK_SetBlockSize(size_t blockSize)
{
g_blockSize = blockSize;
DISPLAYLEVEL(2, "using blocks of size %u KB \n", (U32)(blockSize>>10));
}
/* ********************************************************
* Bench functions
**********************************************************/
typedef struct
{
z_const char* srcPtr;
size_t srcSize;
char* cPtr;
size_t cRoom;
size_t cSize;
char* resPtr;
size_t resSize;
} blockParam_t;
typedef enum { BMK_ZSTD, BMK_ZSTD_STREAM, BMK_ZLIB, BMK_ZWRAP_ZLIB, BMK_ZWRAP_ZSTD, BMK_ZLIB_REUSE, BMK_ZWRAP_ZLIB_REUSE, BMK_ZWRAP_ZSTD_REUSE } BMK_compressor;
#define MIN(a,b) ((a)<(b) ? (a) : (b))
#define MAX(a,b) ((a)>(b) ? (a) : (b))
static int BMK_benchMem(z_const void* srcBuffer, size_t srcSize,
const char* displayName, int cLevel,
const size_t* fileSizes, U32 nbFiles,
const void* dictBuffer, size_t dictBufferSize, BMK_compressor compressor)
{
size_t const blockSize = (g_blockSize>=32 ? g_blockSize : srcSize) + (!srcSize) /* avoid div by 0 */ ;
size_t const avgSize = MIN(g_blockSize, (srcSize / nbFiles));
U32 const maxNbBlocks = (U32) ((srcSize + (blockSize-1)) / blockSize) + nbFiles;
blockParam_t* const blockTable = (blockParam_t*) malloc(maxNbBlocks * sizeof(blockParam_t));
size_t const maxCompressedSize = ZSTD_compressBound(srcSize) + (maxNbBlocks * 1024); /* add some room for safety */
void* const compressedBuffer = malloc(maxCompressedSize);
void* const resultBuffer = malloc(srcSize);
ZSTD_CCtx* const ctx = ZSTD_createCCtx();
ZSTD_DCtx* const dctx = ZSTD_createDCtx();
U32 nbBlocks;
UTIL_freq_t ticksPerSecond;
/* checks */
if (!compressedBuffer || !resultBuffer || !blockTable || !ctx || !dctx)
EXM_THROW(31, "allocation error : not enough memory");
/* init */
if (strlen(displayName)>17) displayName += strlen(displayName)-17; /* can only display 17 characters */
UTIL_initTimer(&ticksPerSecond);
/* Init blockTable data */
{ z_const char* srcPtr = (z_const char*)srcBuffer;
char* cPtr = (char*)compressedBuffer;
char* resPtr = (char*)resultBuffer;
U32 fileNb;
for (nbBlocks=0, fileNb=0; fileNb<nbFiles; fileNb++) {
size_t remaining = fileSizes[fileNb];
U32 const nbBlocksforThisFile = (U32)((remaining + (blockSize-1)) / blockSize);
U32 const blockEnd = nbBlocks + nbBlocksforThisFile;
for ( ; nbBlocks<blockEnd; nbBlocks++) {
size_t const thisBlockSize = MIN(remaining, blockSize);
blockTable[nbBlocks].srcPtr = srcPtr;
blockTable[nbBlocks].cPtr = cPtr;
blockTable[nbBlocks].resPtr = resPtr;
blockTable[nbBlocks].srcSize = thisBlockSize;
blockTable[nbBlocks].cRoom = ZSTD_compressBound(thisBlockSize);
srcPtr += thisBlockSize;
cPtr += blockTable[nbBlocks].cRoom;
resPtr += thisBlockSize;
remaining -= thisBlockSize;
} } }
/* warmimg up memory */
RDG_genBuffer(compressedBuffer, maxCompressedSize, 0.10, 0.50, 1);
/* Bench */
{ U64 fastestC = (U64)(-1LL), fastestD = (U64)(-1LL);
U64 const crcOrig = XXH64(srcBuffer, srcSize, 0);
UTIL_time_t coolTime;
U64 const maxTime = (g_nbIterations * TIMELOOP_MICROSEC) + 100;
U64 totalCTime=0, totalDTime=0;
U32 cCompleted=0, dCompleted=0;
# define NB_MARKS 4
const char* const marks[NB_MARKS] = { " |", " /", " =", "\\" };
U32 markNb = 0;
size_t cSize = 0;
double ratio = 0.;
UTIL_getTime(&coolTime);
DISPLAYLEVEL(2, "\r%79s\r", "");
while (!cCompleted | !dCompleted) {
UTIL_time_t clockStart;
U64 clockLoop = g_nbIterations ? TIMELOOP_MICROSEC : 1;
/* overheat protection */
if (UTIL_clockSpanMicro(coolTime, ticksPerSecond) > ACTIVEPERIOD_MICROSEC) {
DISPLAYLEVEL(2, "\rcooling down ... \r");
UTIL_sleep(COOLPERIOD_SEC);
UTIL_getTime(&coolTime);
}
/* Compression */
DISPLAYLEVEL(2, "%2s-%-17.17s :%10u ->\r", marks[markNb], displayName, (U32)srcSize);
if (!cCompleted) memset(compressedBuffer, 0xE5, maxCompressedSize); /* warm up and erase result buffer */
UTIL_sleepMilli(1); /* give processor time to other processes */
UTIL_waitForNextTick(ticksPerSecond);
UTIL_getTime(&clockStart);
if (!cCompleted) { /* still some time to do compression tests */
U32 nbLoops = 0;
if (compressor == BMK_ZSTD) {
ZSTD_parameters const zparams = ZSTD_getParams(cLevel, avgSize, dictBufferSize);
ZSTD_customMem const cmem = { NULL, NULL, NULL };
ZSTD_CDict* cdict = ZSTD_createCDict_advanced(dictBuffer, dictBufferSize, 1, zparams, cmem);
if (cdict==NULL) EXM_THROW(1, "ZSTD_createCDict_advanced() allocation failure");
do {
U32 blockNb;
size_t rSize;
for (blockNb=0; blockNb<nbBlocks; blockNb++) {
if (dictBufferSize) {
rSize = ZSTD_compress_usingCDict(ctx,
blockTable[blockNb].cPtr, blockTable[blockNb].cRoom,
blockTable[blockNb].srcPtr,blockTable[blockNb].srcSize,
cdict);
} else {
rSize = ZSTD_compressCCtx (ctx,
blockTable[blockNb].cPtr, blockTable[blockNb].cRoom,
blockTable[blockNb].srcPtr,blockTable[blockNb].srcSize, cLevel);
}
if (ZSTD_isError(rSize)) EXM_THROW(1, "ZSTD_compress_usingCDict() failed : %s", ZSTD_getErrorName(rSize));
blockTable[blockNb].cSize = rSize;
}
nbLoops++;
} while (UTIL_clockSpanMicro(clockStart, ticksPerSecond) < clockLoop);
ZSTD_freeCDict(cdict);
} else if (compressor == BMK_ZSTD_STREAM) {
ZSTD_parameters const zparams = ZSTD_getParams(cLevel, avgSize, dictBufferSize);
ZSTD_inBuffer inBuffer;
ZSTD_outBuffer outBuffer;
ZSTD_CStream* zbc = ZSTD_createCStream();
size_t rSize;
if (zbc == NULL) EXM_THROW(1, "ZSTD_createCStream() allocation failure");
rSize = ZSTD_initCStream_advanced(zbc, dictBuffer, dictBufferSize, zparams, avgSize);
if (ZSTD_isError(rSize)) EXM_THROW(1, "ZSTD_initCStream_advanced() failed : %s", ZSTD_getErrorName(rSize));
do {
U32 blockNb;
for (blockNb=0; blockNb<nbBlocks; blockNb++) {
rSize = ZSTD_resetCStream(zbc, blockTable[blockNb].srcSize);
if (ZSTD_isError(rSize)) EXM_THROW(1, "ZSTD_resetCStream() failed : %s", ZSTD_getErrorName(rSize));
inBuffer.src = blockTable[blockNb].srcPtr;
inBuffer.size = blockTable[blockNb].srcSize;
inBuffer.pos = 0;
outBuffer.dst = blockTable[blockNb].cPtr;
outBuffer.size = blockTable[blockNb].cRoom;
outBuffer.pos = 0;
rSize = ZSTD_compressStream(zbc, &outBuffer, &inBuffer);
if (ZSTD_isError(rSize)) EXM_THROW(1, "ZSTD_compressStream() failed : %s", ZSTD_getErrorName(rSize));
rSize = ZSTD_endStream(zbc, &outBuffer);
if (ZSTD_isError(rSize)) EXM_THROW(1, "ZSTD_endStream() failed : %s", ZSTD_getErrorName(rSize));
blockTable[blockNb].cSize = outBuffer.pos;
}
nbLoops++;
} while (UTIL_clockSpanMicro(clockStart, ticksPerSecond) < clockLoop);
ZSTD_freeCStream(zbc);
} else if (compressor == BMK_ZWRAP_ZLIB_REUSE || compressor == BMK_ZWRAP_ZSTD_REUSE || compressor == BMK_ZLIB_REUSE) {
z_stream def;
int ret;
int useSetDict = (dictBuffer != NULL);
if (compressor == BMK_ZLIB_REUSE || compressor == BMK_ZWRAP_ZLIB_REUSE) ZWRAP_useZSTDcompression(0);
else ZWRAP_useZSTDcompression(1);
def.zalloc = Z_NULL;
def.zfree = Z_NULL;
def.opaque = Z_NULL;
ret = deflateInit(&def, cLevel);
if (ret != Z_OK) EXM_THROW(1, "deflateInit failure");
/* if (ZWRAP_isUsingZSTDcompression()) {
ret = ZWRAP_setPledgedSrcSize(&def, avgSize);
if (ret != Z_OK) EXM_THROW(1, "ZWRAP_setPledgedSrcSize failure");
} */
do {
U32 blockNb;
for (blockNb=0; blockNb<nbBlocks; blockNb++) {
if (ZWRAP_isUsingZSTDcompression())
ret = ZWRAP_deflateReset_keepDict(&def); /* reuse dictionary to make compression faster */
else
ret = deflateReset(&def);
if (ret != Z_OK) EXM_THROW(1, "deflateReset failure");
if (useSetDict) {
ret = deflateSetDictionary(&def, dictBuffer, dictBufferSize);
if (ret != Z_OK) EXM_THROW(1, "deflateSetDictionary failure");
if (ZWRAP_isUsingZSTDcompression()) useSetDict = 0; /* zstd doesn't require deflateSetDictionary after ZWRAP_deflateReset_keepDict */
}
def.next_in = (z_const void*) blockTable[blockNb].srcPtr;
def.avail_in = (uInt)blockTable[blockNb].srcSize;
def.total_in = 0;
def.next_out = (void*) blockTable[blockNb].cPtr;
def.avail_out = (uInt)blockTable[blockNb].cRoom;
def.total_out = 0;
ret = deflate(&def, Z_FINISH);
if (ret != Z_STREAM_END) EXM_THROW(1, "deflate failure ret=%d srcSize=%d" , ret, (int)blockTable[blockNb].srcSize);
blockTable[blockNb].cSize = def.total_out;
}
nbLoops++;
} while (UTIL_clockSpanMicro(clockStart, ticksPerSecond) < clockLoop);
ret = deflateEnd(&def);
if (ret != Z_OK) EXM_THROW(1, "deflateEnd failure");
} else {
z_stream def;
if (compressor == BMK_ZLIB || compressor == BMK_ZWRAP_ZLIB) ZWRAP_useZSTDcompression(0);
else ZWRAP_useZSTDcompression(1);
do {
U32 blockNb;
for (blockNb=0; blockNb<nbBlocks; blockNb++) {
int ret;
def.zalloc = Z_NULL;
def.zfree = Z_NULL;
def.opaque = Z_NULL;
ret = deflateInit(&def, cLevel);
if (ret != Z_OK) EXM_THROW(1, "deflateInit failure");
if (dictBuffer) {
ret = deflateSetDictionary(&def, dictBuffer, dictBufferSize);
if (ret != Z_OK) EXM_THROW(1, "deflateSetDictionary failure");
}
def.next_in = (z_const void*) blockTable[blockNb].srcPtr;
def.avail_in = (uInt)blockTable[blockNb].srcSize;
def.total_in = 0;
def.next_out = (void*) blockTable[blockNb].cPtr;
def.avail_out = (uInt)blockTable[blockNb].cRoom;
def.total_out = 0;
ret = deflate(&def, Z_FINISH);
if (ret != Z_STREAM_END) EXM_THROW(1, "deflate failure");
ret = deflateEnd(&def);
if (ret != Z_OK) EXM_THROW(1, "deflateEnd failure");
blockTable[blockNb].cSize = def.total_out;
}
nbLoops++;
} while (UTIL_clockSpanMicro(clockStart, ticksPerSecond) < clockLoop);
}
{ U64 const clockSpan = UTIL_clockSpanMicro(clockStart, ticksPerSecond);
if (clockSpan < fastestC*nbLoops) fastestC = clockSpan / nbLoops;
totalCTime += clockSpan;
cCompleted = totalCTime>maxTime;
} }
cSize = 0;
{ U32 blockNb; for (blockNb=0; blockNb<nbBlocks; blockNb++) cSize += blockTable[blockNb].cSize; }
ratio = (double)srcSize / (double)cSize;
markNb = (markNb+1) % NB_MARKS;
DISPLAYLEVEL(2, "%2s-%-17.17s :%10u ->%10u (%5.3f),%6.1f MB/s\r",
marks[markNb], displayName, (U32)srcSize, (U32)cSize, ratio,
(double)srcSize / fastestC );
(void)fastestD; (void)crcOrig; /* unused when decompression disabled */
#if 1
/* Decompression */
if (!dCompleted) memset(resultBuffer, 0xD6, srcSize); /* warm result buffer */
UTIL_sleepMilli(1); /* give processor time to other processes */
UTIL_waitForNextTick(ticksPerSecond);
UTIL_getTime(&clockStart);
if (!dCompleted) {
U32 nbLoops = 0;
if (compressor == BMK_ZSTD) {
ZSTD_DDict* ddict = ZSTD_createDDict(dictBuffer, dictBufferSize);
if (!ddict) EXM_THROW(2, "ZSTD_createDDict() allocation failure");
do {
U32 blockNb;
for (blockNb=0; blockNb<nbBlocks; blockNb++) {
size_t const regenSize = ZSTD_decompress_usingDDict(dctx,
blockTable[blockNb].resPtr, blockTable[blockNb].srcSize,
blockTable[blockNb].cPtr, blockTable[blockNb].cSize,
ddict);
if (ZSTD_isError(regenSize)) {
DISPLAY("ZSTD_decompress_usingDDict() failed on block %u : %s \n",
blockNb, ZSTD_getErrorName(regenSize));
clockLoop = 0; /* force immediate test end */
break;
}
blockTable[blockNb].resSize = regenSize;
}
nbLoops++;
} while (UTIL_clockSpanMicro(clockStart, ticksPerSecond) < clockLoop);
ZSTD_freeDDict(ddict);
} else if (compressor == BMK_ZSTD_STREAM) {
ZSTD_inBuffer inBuffer;
ZSTD_outBuffer outBuffer;
ZSTD_DStream* zbd = ZSTD_createDStream();
size_t rSize;
if (zbd == NULL) EXM_THROW(1, "ZSTD_createDStream() allocation failure");
rSize = ZSTD_initDStream_usingDict(zbd, dictBuffer, dictBufferSize);
if (ZSTD_isError(rSize)) EXM_THROW(1, "ZSTD_initDStream() failed : %s", ZSTD_getErrorName(rSize));
do {
U32 blockNb;
for (blockNb=0; blockNb<nbBlocks; blockNb++) {
rSize = ZSTD_resetDStream(zbd);
if (ZSTD_isError(rSize)) EXM_THROW(1, "ZSTD_resetDStream() failed : %s", ZSTD_getErrorName(rSize));
inBuffer.src = blockTable[blockNb].cPtr;
inBuffer.size = blockTable[blockNb].cSize;
inBuffer.pos = 0;
outBuffer.dst = blockTable[blockNb].resPtr;
outBuffer.size = blockTable[blockNb].srcSize;
outBuffer.pos = 0;
rSize = ZSTD_decompressStream(zbd, &outBuffer, &inBuffer);
if (ZSTD_isError(rSize)) EXM_THROW(1, "ZSTD_decompressStream() failed : %s", ZSTD_getErrorName(rSize));
blockTable[blockNb].resSize = outBuffer.pos;
}
nbLoops++;
} while (UTIL_clockSpanMicro(clockStart, ticksPerSecond) < clockLoop);
ZSTD_freeDStream(zbd);
} else if (compressor == BMK_ZWRAP_ZLIB_REUSE || compressor == BMK_ZWRAP_ZSTD_REUSE || compressor == BMK_ZLIB_REUSE) {
z_stream inf;
int ret;
if (compressor == BMK_ZLIB_REUSE) ZWRAP_setDecompressionType(ZWRAP_FORCE_ZLIB);
else ZWRAP_setDecompressionType(ZWRAP_AUTO);
inf.zalloc = Z_NULL;
inf.zfree = Z_NULL;
inf.opaque = Z_NULL;
ret = inflateInit(&inf);
if (ret != Z_OK) EXM_THROW(1, "inflateInit failure");
do {
U32 blockNb;
for (blockNb=0; blockNb<nbBlocks; blockNb++) {
if (ZWRAP_isUsingZSTDdecompression(&inf))
ret = ZWRAP_inflateReset_keepDict(&inf); /* reuse dictionary to make decompression faster; inflate will return Z_NEED_DICT only for the first time */
else
ret = inflateReset(&inf);
if (ret != Z_OK) EXM_THROW(1, "inflateReset failure");
inf.next_in = (z_const void*) blockTable[blockNb].cPtr;
inf.avail_in = (uInt)blockTable[blockNb].cSize;
inf.total_in = 0;
inf.next_out = (void*) blockTable[blockNb].resPtr;
inf.avail_out = (uInt)blockTable[blockNb].srcSize;
inf.total_out = 0;
ret = inflate(&inf, Z_FINISH);
if (ret == Z_NEED_DICT) {
ret = inflateSetDictionary(&inf, dictBuffer, dictBufferSize);
if (ret != Z_OK) EXM_THROW(1, "inflateSetDictionary failure");
ret = inflate(&inf, Z_FINISH);
}
if (ret != Z_STREAM_END) EXM_THROW(1, "inflate failure");
blockTable[blockNb].resSize = inf.total_out;
}
nbLoops++;
} while (UTIL_clockSpanMicro(clockStart, ticksPerSecond) < clockLoop);
ret = inflateEnd(&inf);
if (ret != Z_OK) EXM_THROW(1, "inflateEnd failure");
} else {
z_stream inf;
if (compressor == BMK_ZLIB) ZWRAP_setDecompressionType(ZWRAP_FORCE_ZLIB);
else ZWRAP_setDecompressionType(ZWRAP_AUTO);
do {
U32 blockNb;
for (blockNb=0; blockNb<nbBlocks; blockNb++) {
int ret;
inf.zalloc = Z_NULL;
inf.zfree = Z_NULL;
inf.opaque = Z_NULL;
ret = inflateInit(&inf);
if (ret != Z_OK) EXM_THROW(1, "inflateInit failure");
inf.next_in = (z_const void*) blockTable[blockNb].cPtr;
inf.avail_in = (uInt)blockTable[blockNb].cSize;
inf.total_in = 0;
inf.next_out = (void*) blockTable[blockNb].resPtr;
inf.avail_out = (uInt)blockTable[blockNb].srcSize;
inf.total_out = 0;
ret = inflate(&inf, Z_FINISH);
if (ret == Z_NEED_DICT) {
ret = inflateSetDictionary(&inf, dictBuffer, dictBufferSize);
if (ret != Z_OK) EXM_THROW(1, "inflateSetDictionary failure");
ret = inflate(&inf, Z_FINISH);
}
if (ret != Z_STREAM_END) EXM_THROW(1, "inflate failure");
ret = inflateEnd(&inf);
if (ret != Z_OK) EXM_THROW(1, "inflateEnd failure");
blockTable[blockNb].resSize = inf.total_out;
}
nbLoops++;
} while (UTIL_clockSpanMicro(clockStart, ticksPerSecond) < clockLoop);
}
{ U64 const clockSpan = UTIL_clockSpanMicro(clockStart, ticksPerSecond);
if (clockSpan < fastestD*nbLoops) fastestD = clockSpan / nbLoops;
totalDTime += clockSpan;
dCompleted = totalDTime>maxTime;
} }
markNb = (markNb+1) % NB_MARKS;
DISPLAYLEVEL(2, "%2s-%-17.17s :%10u ->%10u (%5.3f),%6.1f MB/s ,%6.1f MB/s\r",
marks[markNb], displayName, (U32)srcSize, (U32)cSize, ratio,
(double)srcSize / fastestC,
(double)srcSize / fastestD );
/* CRC Checking */
{ U64 const crcCheck = XXH64(resultBuffer, srcSize, 0);
if (crcOrig!=crcCheck) {
size_t u;
DISPLAY("!!! WARNING !!! %14s : Invalid Checksum : %x != %x \n", displayName, (unsigned)crcOrig, (unsigned)crcCheck);
for (u=0; u<srcSize; u++) {
if (((const BYTE*)srcBuffer)[u] != ((const BYTE*)resultBuffer)[u]) {
U32 segNb, bNb, pos;
size_t bacc = 0;
DISPLAY("Decoding error at pos %u ", (U32)u);
for (segNb = 0; segNb < nbBlocks; segNb++) {
if (bacc + blockTable[segNb].srcSize > u) break;
bacc += blockTable[segNb].srcSize;
}
pos = (U32)(u - bacc);
bNb = pos / (128 KB);
DISPLAY("(block %u, sub %u, pos %u) \n", segNb, bNb, pos);
break;
}
if (u==srcSize-1) { /* should never happen */
DISPLAY("no difference detected\n");
} }
break;
} } /* CRC Checking */
#endif
} /* for (testNb = 1; testNb <= (g_nbIterations + !g_nbIterations); testNb++) */
if (g_displayLevel == 1) {
double cSpeed = (double)srcSize / fastestC;
double dSpeed = (double)srcSize / fastestD;
if (g_additionalParam)
DISPLAY("-%-3i%11i (%5.3f) %6.2f MB/s %6.1f MB/s %s (param=%d)\n", cLevel, (int)cSize, ratio, cSpeed, dSpeed, displayName, g_additionalParam);
else
DISPLAY("-%-3i%11i (%5.3f) %6.2f MB/s %6.1f MB/s %s\n", cLevel, (int)cSize, ratio, cSpeed, dSpeed, displayName);
}
DISPLAYLEVEL(2, "%2i#\n", cLevel);
} /* Bench */
/* clean up */
free(blockTable);
free(compressedBuffer);
free(resultBuffer);
ZSTD_freeCCtx(ctx);
ZSTD_freeDCtx(dctx);
return 0;
}
static size_t BMK_findMaxMem(U64 requiredMem)
{
size_t const step = 64 MB;
BYTE* testmem = NULL;
requiredMem = (((requiredMem >> 26) + 1) << 26);
requiredMem += step;
if (requiredMem > maxMemory) requiredMem = maxMemory;
do {
testmem = (BYTE*)malloc((size_t)requiredMem);
requiredMem -= step;
} while (!testmem);
free(testmem);
return (size_t)(requiredMem);
}
static void BMK_benchCLevel(void* srcBuffer, size_t benchedSize,
const char* displayName, int cLevel, int cLevelLast,
const size_t* fileSizes, unsigned nbFiles,
const void* dictBuffer, size_t dictBufferSize)
{
int l;
const char* pch = strrchr(displayName, '\\'); /* Windows */
if (!pch) pch = strrchr(displayName, '/'); /* Linux */
if (pch) displayName = pch+1;
SET_REALTIME_PRIORITY;
if (g_displayLevel == 1 && !g_additionalParam)
DISPLAY("bench %s %s: input %u bytes, %u seconds, %u KB blocks\n", ZSTD_VERSION_STRING, ZSTD_GIT_COMMIT_STRING, (U32)benchedSize, g_nbIterations, (U32)(g_blockSize>>10));
if (cLevelLast < cLevel) cLevelLast = cLevel;
DISPLAY("benchmarking zstd %s (using ZSTD_CStream)\n", ZSTD_VERSION_STRING);
for (l=cLevel; l <= cLevelLast; l++) {
BMK_benchMem(srcBuffer, benchedSize,
displayName, l,
fileSizes, nbFiles,
dictBuffer, dictBufferSize, BMK_ZSTD_STREAM);
}
DISPLAY("benchmarking zstd %s (using ZSTD_CCtx)\n", ZSTD_VERSION_STRING);
for (l=cLevel; l <= cLevelLast; l++) {
BMK_benchMem(srcBuffer, benchedSize,
displayName, l,
fileSizes, nbFiles,
dictBuffer, dictBufferSize, BMK_ZSTD);
}
DISPLAY("benchmarking zstd %s (using zlibWrapper)\n", ZSTD_VERSION_STRING);
for (l=cLevel; l <= cLevelLast; l++) {
BMK_benchMem(srcBuffer, benchedSize,
displayName, l,
fileSizes, nbFiles,
dictBuffer, dictBufferSize, BMK_ZWRAP_ZSTD_REUSE);
}
DISPLAY("benchmarking zstd %s (zlibWrapper not reusing a context)\n", ZSTD_VERSION_STRING);
for (l=cLevel; l <= cLevelLast; l++) {
BMK_benchMem(srcBuffer, benchedSize,
displayName, l,
fileSizes, nbFiles,
dictBuffer, dictBufferSize, BMK_ZWRAP_ZSTD);
}
if (cLevelLast > Z_BEST_COMPRESSION) cLevelLast = Z_BEST_COMPRESSION;
DISPLAY("\n");
DISPLAY("benchmarking zlib %s\n", ZLIB_VERSION);
for (l=cLevel; l <= cLevelLast; l++) {
BMK_benchMem(srcBuffer, benchedSize,
displayName, l,
fileSizes, nbFiles,
dictBuffer, dictBufferSize, BMK_ZLIB_REUSE);
}
DISPLAY("benchmarking zlib %s (zlib not reusing a context)\n", ZLIB_VERSION);
for (l=cLevel; l <= cLevelLast; l++) {
BMK_benchMem(srcBuffer, benchedSize,
displayName, l,
fileSizes, nbFiles,
dictBuffer, dictBufferSize, BMK_ZLIB);
}
DISPLAY("benchmarking zlib %s (using zlibWrapper)\n", ZLIB_VERSION);
for (l=cLevel; l <= cLevelLast; l++) {
BMK_benchMem(srcBuffer, benchedSize,
displayName, l,
fileSizes, nbFiles,
dictBuffer, dictBufferSize, BMK_ZWRAP_ZLIB_REUSE);
}
DISPLAY("benchmarking zlib %s (zlibWrapper not reusing a context)\n", ZLIB_VERSION);
for (l=cLevel; l <= cLevelLast; l++) {
BMK_benchMem(srcBuffer, benchedSize,
displayName, l,
fileSizes, nbFiles,
dictBuffer, dictBufferSize, BMK_ZWRAP_ZLIB);
}
}
/*! BMK_loadFiles() :
Loads `buffer` with content of files listed within `fileNamesTable`.
At most, fills `buffer` entirely */
static void BMK_loadFiles(void* buffer, size_t bufferSize,
size_t* fileSizes,
const char** fileNamesTable, unsigned nbFiles)
{
size_t pos = 0, totalSize = 0;
unsigned n;
for (n=0; n<nbFiles; n++) {
FILE* f;
U64 fileSize = UTIL_getFileSize(fileNamesTable[n]);
if (UTIL_isDirectory(fileNamesTable[n])) {
DISPLAYLEVEL(2, "Ignoring %s directory... \n", fileNamesTable[n]);
fileSizes[n] = 0;
continue;
}
f = fopen(fileNamesTable[n], "rb");
if (f==NULL) EXM_THROW(10, "impossible to open file %s", fileNamesTable[n]);
DISPLAYUPDATE(2, "Loading %s... \r", fileNamesTable[n]);
if (fileSize > bufferSize-pos) fileSize = bufferSize-pos, nbFiles=n; /* buffer too small - stop after this file */
{ size_t const readSize = fread(((char*)buffer)+pos, 1, (size_t)fileSize, f);
if (readSize != (size_t)fileSize) EXM_THROW(11, "could not read %s", fileNamesTable[n]);
pos += readSize; }
fileSizes[n] = (size_t)fileSize;
totalSize += (size_t)fileSize;
fclose(f);
}
if (totalSize == 0) EXM_THROW(12, "no data to bench");
}
static void BMK_benchFileTable(const char** fileNamesTable, unsigned nbFiles,
const char* dictFileName, int cLevel, int cLevelLast)
{
void* srcBuffer;
size_t benchedSize;
void* dictBuffer = NULL;
size_t dictBufferSize = 0;
size_t* fileSizes = (size_t*)malloc(nbFiles * sizeof(size_t));
U64 const totalSizeToLoad = UTIL_getTotalFileSize(fileNamesTable, nbFiles);
char mfName[20] = {0};
if (!fileSizes) EXM_THROW(12, "not enough memory for fileSizes");
/* Load dictionary */
if (dictFileName != NULL) {
U64 dictFileSize = UTIL_getFileSize(dictFileName);
if (dictFileSize > 64 MB) EXM_THROW(10, "dictionary file %s too large", dictFileName);
dictBufferSize = (size_t)dictFileSize;
dictBuffer = malloc(dictBufferSize);
if (dictBuffer==NULL) EXM_THROW(11, "not enough memory for dictionary (%u bytes)", (U32)dictBufferSize);
BMK_loadFiles(dictBuffer, dictBufferSize, fileSizes, &dictFileName, 1);
}
/* Memory allocation & restrictions */
benchedSize = BMK_findMaxMem(totalSizeToLoad * 3) / 3;
if ((U64)benchedSize > totalSizeToLoad) benchedSize = (size_t)totalSizeToLoad;
if (benchedSize < totalSizeToLoad)
DISPLAY("Not enough memory; testing %u MB only...\n", (U32)(benchedSize >> 20));
srcBuffer = malloc(benchedSize);
if (!srcBuffer) EXM_THROW(12, "not enough memory");
/* Load input buffer */
BMK_loadFiles(srcBuffer, benchedSize, fileSizes, fileNamesTable, nbFiles);
/* Bench */
snprintf (mfName, sizeof(mfName), " %u files", nbFiles);
{ const char* displayName = (nbFiles > 1) ? mfName : fileNamesTable[0];
BMK_benchCLevel(srcBuffer, benchedSize,
displayName, cLevel, cLevelLast,
fileSizes, nbFiles,
dictBuffer, dictBufferSize);
}
/* clean up */
free(srcBuffer);
free(dictBuffer);
free(fileSizes);
}
static void BMK_syntheticTest(int cLevel, int cLevelLast, double compressibility)
{
char name[20] = {0};
size_t benchedSize = 10000000;
void* const srcBuffer = malloc(benchedSize);
/* Memory allocation */
if (!srcBuffer) EXM_THROW(21, "not enough memory");
/* Fill input buffer */
RDG_genBuffer(srcBuffer, benchedSize, compressibility, 0.0, 0);
/* Bench */
snprintf (name, sizeof(name), "Synthetic %2u%%", (unsigned)(compressibility*100));
BMK_benchCLevel(srcBuffer, benchedSize, name, cLevel, cLevelLast, &benchedSize, 1, NULL, 0);
/* clean up */
free(srcBuffer);
}
int BMK_benchFiles(const char** fileNamesTable, unsigned nbFiles,
const char* dictFileName, int cLevel, int cLevelLast)
{
double const compressibility = (double)g_compressibilityDefault / 100;
if (nbFiles == 0)
BMK_syntheticTest(cLevel, cLevelLast, compressibility);
else
BMK_benchFileTable(fileNamesTable, nbFiles, dictFileName, cLevel, cLevelLast);
return 0;
}
/*-************************************
* Command Line
**************************************/
static int usage(const char* programName)
{
DISPLAY(WELCOME_MESSAGE);
DISPLAY( "Usage :\n");
DISPLAY( " %s [args] [FILE(s)] [-o file]\n", programName);
DISPLAY( "\n");
DISPLAY( "FILE : a filename\n");
DISPLAY( " with no FILE, or when FILE is - , read standard input\n");
DISPLAY( "Arguments :\n");
DISPLAY( " -D file: use `file` as Dictionary \n");
DISPLAY( " -h/-H : display help/long help and exit\n");
DISPLAY( " -V : display Version number and exit\n");
DISPLAY( " -v : verbose mode; specify multiple times to increase log level (default:%d)\n", DEFAULT_DISPLAY_LEVEL);
DISPLAY( " -q : suppress warnings; specify twice to suppress errors too\n");
#ifdef UTIL_HAS_CREATEFILELIST
DISPLAY( " -r : operate recursively on directories\n");
#endif
DISPLAY( "\n");
DISPLAY( "Benchmark arguments :\n");
DISPLAY( " -b# : benchmark file(s), using # compression level (default : %d) \n", ZSTDCLI_CLEVEL_DEFAULT);
DISPLAY( " -e# : test all compression levels from -bX to # (default: %d)\n", ZSTDCLI_CLEVEL_DEFAULT);
DISPLAY( " -i# : minimum evaluation time in seconds (default : 3s)\n");
DISPLAY( " -B# : cut file into independent blocks of size # (default: no block)\n");
return 0;
}
static int badusage(const char* programName)
{
DISPLAYLEVEL(1, "Incorrect parameters\n");
if (g_displayLevel >= 1) usage(programName);
return 1;
}
static void waitEnter(void)
{
int unused;
DISPLAY("Press enter to continue...\n");
unused = getchar();
(void)unused;
}
/*! readU32FromChar() :
@return : unsigned integer value reach from input in `char` format
Will also modify `*stringPtr`, advancing it to position where it stopped reading.
Note : this function can overflow if digit string > MAX_UINT */
static unsigned readU32FromChar(const char** stringPtr)
{
unsigned result = 0;
while ((**stringPtr >='0') && (**stringPtr <='9'))
result *= 10, result += **stringPtr - '0', (*stringPtr)++ ;
return result;
}
#define CLEAN_RETURN(i) { operationResult = (i); goto _end; }
int main(int argCount, char** argv)
{
int argNb,
main_pause=0,
nextEntryIsDictionary=0,
operationResult=0,
nextArgumentIsFile=0;
int cLevel = ZSTDCLI_CLEVEL_DEFAULT;
int cLevelLast = 1;
unsigned recursive = 0;
const char** filenameTable = (const char**)malloc(argCount * sizeof(const char*)); /* argCount >= 1 */
unsigned filenameIdx = 0;
const char* programName = argv[0];
const char* dictFileName = NULL;
char* dynNameSpace = NULL;
#ifdef UTIL_HAS_CREATEFILELIST
const char** fileNamesTable = NULL;
char* fileNamesBuf = NULL;
unsigned fileNamesNb;
#endif
/* init */
if (filenameTable==NULL) { DISPLAY("zstd: %s \n", strerror(errno)); exit(1); }
displayOut = stderr;
/* Pick out program name from path. Don't rely on stdlib because of conflicting behavior */
{ size_t pos;
for (pos = (int)strlen(programName); pos > 0; pos--) { if (programName[pos] == '/') { pos++; break; } }
programName += pos;
}
/* command switches */
for(argNb=1; argNb<argCount; argNb++) {
const char* argument = argv[argNb];
if(!argument) continue; /* Protection if argument empty */
if (nextArgumentIsFile==0) {
/* long commands (--long-word) */
if (!strcmp(argument, "--")) { nextArgumentIsFile=1; continue; }
if (!strcmp(argument, "--version")) { displayOut=stdout; DISPLAY(WELCOME_MESSAGE); CLEAN_RETURN(0); }
if (!strcmp(argument, "--help")) { displayOut=stdout; CLEAN_RETURN(usage(programName)); }
if (!strcmp(argument, "--verbose")) { g_displayLevel++; continue; }
if (!strcmp(argument, "--quiet")) { g_displayLevel--; continue; }
/* Decode commands (note : aggregated commands are allowed) */
if (argument[0]=='-') {
argument++;
while (argument[0]!=0) {
switch(argument[0])
{
/* Display help */
case 'V': displayOut=stdout; DISPLAY(WELCOME_MESSAGE); CLEAN_RETURN(0); /* Version Only */
case 'H':
case 'h': displayOut=stdout; CLEAN_RETURN(usage(programName));
/* Use file content as dictionary */
case 'D': nextEntryIsDictionary = 1; argument++; break;
/* Verbose mode */
case 'v': g_displayLevel++; argument++; break;
/* Quiet mode */
case 'q': g_displayLevel--; argument++; break;
#ifdef UTIL_HAS_CREATEFILELIST
/* recursive */
case 'r': recursive=1; argument++; break;
#endif
/* Benchmark */
case 'b':
/* first compression Level */
argument++;
cLevel = readU32FromChar(&argument);
break;
/* range bench (benchmark only) */
case 'e':
/* last compression Level */
argument++;
cLevelLast = readU32FromChar(&argument);
break;
/* Modify Nb Iterations (benchmark only) */
case 'i':
argument++;
{ U32 const iters = readU32FromChar(&argument);
BMK_setNotificationLevel(g_displayLevel);
BMK_SetNbIterations(iters);
}
break;
/* cut input into blocks (benchmark only) */
case 'B':
argument++;
{ size_t bSize = readU32FromChar(&argument);
if (toupper(*argument)=='K') bSize<<=10, argument++; /* allows using KB notation */
if (toupper(*argument)=='M') bSize<<=20, argument++;
if (toupper(*argument)=='B') argument++;
BMK_setNotificationLevel(g_displayLevel);
BMK_SetBlockSize(bSize);
}
break;
/* Pause at the end (-p) or set an additional param (-p#) (hidden option) */
case 'p': argument++;
if ((*argument>='0') && (*argument<='9')) {
BMK_setAdditionalParam(readU32FromChar(&argument));
} else
main_pause=1;
break;
/* unknown command */
default : CLEAN_RETURN(badusage(programName));
}
}
continue;
} /* if (argument[0]=='-') */
} /* if (nextArgumentIsAFile==0) */
if (nextEntryIsDictionary) {
nextEntryIsDictionary = 0;
dictFileName = argument;
continue;
}
/* add filename to list */
filenameTable[filenameIdx++] = argument;
}
/* Welcome message (if verbose) */
DISPLAYLEVEL(3, WELCOME_MESSAGE);
#ifdef UTIL_HAS_CREATEFILELIST
if (recursive) {
fileNamesTable = UTIL_createFileList(filenameTable, filenameIdx, &fileNamesBuf, &fileNamesNb);
if (fileNamesTable) {
unsigned u;
for (u=0; u<fileNamesNb; u++) DISPLAYLEVEL(4, "%u %s\n", u, fileNamesTable[u]);
free((void*)filenameTable);
filenameTable = fileNamesTable;
filenameIdx = fileNamesNb;
}
}
#endif
BMK_setNotificationLevel(g_displayLevel);
BMK_benchFiles(filenameTable, filenameIdx, dictFileName, cLevel, cLevelLast);
_end:
if (main_pause) waitEnter();
free(dynNameSpace);
#ifdef UTIL_HAS_CREATEFILELIST
if (fileNamesTable)
UTIL_freeFileList(fileNamesTable, fileNamesBuf);
else
#endif
free((void*)filenameTable);
return operationResult;
}
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