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zstd/tests/fullbench.c
Yann Collet 2e84bec9ac updated fullbench to also measure ZSTD_compress_generic() 
will make it possible to visualize
optimization opportunity for ZSTD_e_end
2017-06-29 13:03:10 -07:00

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/**
* Copyright (c) 2016-present, Yann Collet, 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 */
#include <stdlib.h> /* malloc */
#include <stdio.h> /* fprintf, fopen, ftello64 */
#include <time.h> /* clock_t, clock, CLOCKS_PER_SEC */
#include "mem.h"
#ifndef ZSTD_DLL_IMPORT
#include "zstd_internal.h" /* ZSTD_blockHeaderSize, blockType_e, KB, MB */
#define ZSTD_STATIC_LINKING_ONLY /* ZSTD_compressBegin, ZSTD_compressContinue, etc. */
#else
#define KB *(1 <<10)
#define MB *(1 <<20)
#define GB *(1U<<30)
typedef enum { bt_raw, bt_rle, bt_compressed, bt_reserved } blockType_e;
#endif
#include "zstd.h" /* ZSTD_VERSION_STRING */
#include "datagen.h"
/*_************************************
* Constants
**************************************/
#define PROGRAM_DESCRIPTION "Zstandard speed analyzer"
#define AUTHOR "Yann Collet"
#define WELCOME_MESSAGE "*** %s %s %i-bits, by %s (%s) ***\n", PROGRAM_DESCRIPTION, ZSTD_VERSION_STRING, (int)(sizeof(void*)*8), AUTHOR, __DATE__
#define NBLOOPS 6
#define TIMELOOP_S 2
#define KNUTH 2654435761U
#define MAX_MEM (1984 MB)
#define COMPRESSIBILITY_DEFAULT 0.50
static const size_t g_sampleSize = 10000000;
/*_************************************
* Macros
**************************************/
#define DISPLAY(...) fprintf(stderr, __VA_ARGS__)
/*_************************************
* Benchmark Parameters
**************************************/
static U32 g_nbIterations = NBLOOPS;
static double g_compressibility = COMPRESSIBILITY_DEFAULT;
static void BMK_SetNbIterations(U32 nbLoops)
{
g_nbIterations = nbLoops;
DISPLAY("- %i iterations -\n", g_nbIterations);
}
/*_*******************************************************
* Private functions
*********************************************************/
static clock_t BMK_clockSpan( clock_t clockStart )
{
return clock() - clockStart; /* works even if overflow, span limited to <= ~30mn */
}
static size_t BMK_findMaxMem(U64 requiredMem)
{
size_t const step = 64 MB;
void* testmem = NULL;
requiredMem = (((requiredMem >> 26) + 1) << 26);
if (requiredMem > MAX_MEM) requiredMem = MAX_MEM;
requiredMem += step;
do {
testmem = malloc ((size_t)requiredMem);
requiredMem -= step;
} while (!testmem);
free (testmem);
return (size_t) requiredMem;
}
/*_*******************************************************
* Benchmark wrappers
*********************************************************/
typedef struct {
blockType_e blockType;
U32 unusedBits;
U32 origSize;
} blockProperties_t;
size_t local_ZSTD_compress(void* dst, size_t dstSize, void* buff2, const void* src, size_t srcSize)
{
(void)buff2;
return ZSTD_compress(dst, dstSize, src, srcSize, 1);
}
static size_t g_cSize = 0;
size_t local_ZSTD_decompress(void* dst, size_t dstSize, void* buff2, const void* src, size_t srcSize)
{
(void)src; (void)srcSize;
return ZSTD_decompress(dst, dstSize, buff2, g_cSize);
}
#ifndef ZSTD_DLL_IMPORT
static ZSTD_DCtx* g_zdc = NULL;
extern size_t ZSTD_decodeLiteralsBlock(ZSTD_DCtx* ctx, const void* src, size_t srcSize);
size_t local_ZSTD_decodeLiteralsBlock(void* dst, size_t dstSize, void* buff2, const void* src, size_t srcSize)
{
(void)src; (void)srcSize; (void)dst; (void)dstSize;
return ZSTD_decodeLiteralsBlock((ZSTD_DCtx*)g_zdc, buff2, g_cSize);
}
extern size_t ZSTD_getcBlockSize(const void* src, size_t srcSize, blockProperties_t* bpPtr);
extern size_t ZSTD_decodeSeqHeaders(ZSTD_DCtx* dctx, int* nbSeq, const void* src, size_t srcSize);
size_t local_ZSTD_decodeSeqHeaders(void* dst, size_t dstSize, void* buff2, const void* src, size_t srcSize)
{
int nbSeq;
(void)src; (void)srcSize; (void)dst; (void)dstSize;
return ZSTD_decodeSeqHeaders(g_zdc, &nbSeq, buff2, g_cSize);
}
#endif
static ZSTD_CStream* g_cstream= NULL;
size_t local_ZSTD_compressStream(void* dst, size_t dstCapacity, void* buff2, const void* src, size_t srcSize)
{
ZSTD_outBuffer buffOut;
ZSTD_inBuffer buffIn;
(void)buff2;
ZSTD_initCStream(g_cstream, 1);
buffOut.dst = dst;
buffOut.size = dstCapacity;
buffOut.pos = 0;
buffIn.src = src;
buffIn.size = srcSize;
buffIn.pos = 0;
ZSTD_compressStream(g_cstream, &buffOut, &buffIn);
ZSTD_endStream(g_cstream, &buffOut);
return buffOut.pos;
}
static size_t local_ZSTD_compress_generic_end(void* dst, size_t dstCapacity, void* buff2, const void* src, size_t srcSize)
{
ZSTD_outBuffer buffOut;
ZSTD_inBuffer buffIn;
(void)buff2;
ZSTD_CCtx_setParameter(g_cstream, ZSTD_p_compressionLevel, 1);
buffOut.dst = dst;
buffOut.size = dstCapacity;
buffOut.pos = 0;
buffIn.src = src;
buffIn.size = srcSize;
buffIn.pos = 0;
ZSTD_compress_generic(g_cstream, &buffOut, &buffIn, ZSTD_e_end);
return buffOut.pos;
}
static size_t local_ZSTD_compress_generic_continue(void* dst, size_t dstCapacity, void* buff2, const void* src, size_t srcSize)
{
ZSTD_outBuffer buffOut;
ZSTD_inBuffer buffIn;
(void)buff2;
ZSTD_CCtx_setParameter(g_cstream, ZSTD_p_compressionLevel, 1);
buffOut.dst = dst;
buffOut.size = dstCapacity;
buffOut.pos = 0;
buffIn.src = src;
buffIn.size = srcSize;
buffIn.pos = 0;
ZSTD_compress_generic(g_cstream, &buffOut, &buffIn, ZSTD_e_continue);
ZSTD_compress_generic(g_cstream, &buffOut, &buffIn, ZSTD_e_end);
return buffOut.pos;
}
static ZSTD_DStream* g_dstream= NULL;
static size_t local_ZSTD_decompressStream(void* dst, size_t dstCapacity, void* buff2, const void* src, size_t srcSize)
{
ZSTD_outBuffer buffOut;
ZSTD_inBuffer buffIn;
(void)src; (void)srcSize;
ZSTD_initDStream(g_dstream);
buffOut.dst = dst;
buffOut.size = dstCapacity;
buffOut.pos = 0;
buffIn.src = buff2;
buffIn.size = g_cSize;
buffIn.pos = 0;
ZSTD_decompressStream(g_dstream, &buffOut, &buffIn);
return buffOut.pos;
}
#ifndef ZSTD_DLL_IMPORT
static ZSTD_CCtx* g_zcc = NULL;
size_t local_ZSTD_compressContinue(void* dst, size_t dstCapacity, void* buff2, const void* src, size_t srcSize)
{
(void)buff2;
ZSTD_compressBegin(g_zcc, 1);
return ZSTD_compressEnd(g_zcc, dst, dstCapacity, src, srcSize);
}
#define FIRST_BLOCK_SIZE 8
size_t local_ZSTD_compressContinue_extDict(void* dst, size_t dstCapacity, void* buff2, const void* src, size_t srcSize)
{
BYTE firstBlockBuf[FIRST_BLOCK_SIZE];
(void)buff2;
memcpy(firstBlockBuf, src, FIRST_BLOCK_SIZE);
ZSTD_compressBegin(g_zcc, 1);
{ size_t const compressResult = ZSTD_compressContinue(g_zcc, dst, dstCapacity, firstBlockBuf, FIRST_BLOCK_SIZE);
if (ZSTD_isError(compressResult)) { DISPLAY("local_ZSTD_compressContinue_extDict error : %s\n", ZSTD_getErrorName(compressResult)); return compressResult; }
dst = (BYTE*)dst + compressResult;
dstCapacity -= compressResult;
}
return ZSTD_compressEnd(g_zcc, dst, dstCapacity, (const BYTE*)src + FIRST_BLOCK_SIZE, srcSize - FIRST_BLOCK_SIZE);
}
size_t local_ZSTD_decompressContinue(void* dst, size_t dstCapacity, void* buff2, const void* src, size_t srcSize)
{
size_t regeneratedSize = 0;
const BYTE* ip = (const BYTE*)buff2;
const BYTE* const iend = ip + g_cSize;
BYTE* op = (BYTE*)dst;
size_t remainingCapacity = dstCapacity;
(void)src; (void)srcSize;
ZSTD_decompressBegin(g_zdc);
while (ip < iend) {
size_t const iSize = ZSTD_nextSrcSizeToDecompress(g_zdc);
size_t const decodedSize = ZSTD_decompressContinue(g_zdc, op, remainingCapacity, ip, iSize);
ip += iSize;
regeneratedSize += decodedSize;
op += decodedSize;
remainingCapacity -= decodedSize;
}
return regeneratedSize;
}
#endif
/*_*******************************************************
* Bench functions
*********************************************************/
static size_t benchMem(const void* src, size_t srcSize, U32 benchNb)
{
BYTE* dstBuff;
size_t const dstBuffSize = ZSTD_compressBound(srcSize);
void* buff2;
const char* benchName;
size_t (*benchFunction)(void* dst, size_t dstSize, void* verifBuff, const void* src, size_t srcSize);
double bestTime = 100000000.;
/* Selection */
switch(benchNb)
{
case 1:
benchFunction = local_ZSTD_compress; benchName = "ZSTD_compress(1)";
break;
case 2:
benchFunction = local_ZSTD_decompress; benchName = "ZSTD_decompress";
break;
#ifndef ZSTD_DLL_IMPORT
case 11:
benchFunction = local_ZSTD_compressContinue; benchName = "ZSTD_compressContinue(1)";
break;
case 12:
benchFunction = local_ZSTD_compressContinue_extDict; benchName = "ZSTD_compressContinue_extDict";
break;
case 13:
benchFunction = local_ZSTD_decompressContinue; benchName = "ZSTD_decompressContinue";
break;
case 31:
benchFunction = local_ZSTD_decodeLiteralsBlock; benchName = "ZSTD_decodeLiteralsBlock";
break;
case 32:
benchFunction = local_ZSTD_decodeSeqHeaders; benchName = "ZSTD_decodeSeqHeaders";
break;
#endif
case 41:
benchFunction = local_ZSTD_compressStream; benchName = "ZSTD_compressStream(1)";
break;
case 42:
benchFunction = local_ZSTD_decompressStream; benchName = "ZSTD_decompressStream";
break;
case 51:
benchFunction = local_ZSTD_compress_generic_continue; benchName = "ZSTD_compress_generic, continue";
break;
case 52:
benchFunction = local_ZSTD_compress_generic_end; benchName = "ZSTD_compress_generic, end";
break;
default :
return 0;
}
/* Allocation */
dstBuff = (BYTE*)malloc(dstBuffSize);
buff2 = malloc(dstBuffSize);
if ((!dstBuff) || (!buff2)) {
DISPLAY("\nError: not enough memory!\n");
free(dstBuff); free(buff2);
return 12;
}
if (g_zcc==NULL) g_zcc = ZSTD_createCCtx();
if (g_zdc==NULL) g_zdc = ZSTD_createDCtx();
if (g_cstream==NULL) g_cstream = ZSTD_createCStream();
if (g_dstream==NULL) g_dstream = ZSTD_createDStream();
/* Preparation */
switch(benchNb)
{
case 2:
g_cSize = ZSTD_compress(buff2, dstBuffSize, src, srcSize, 1);
break;
#ifndef ZSTD_DLL_IMPORT
case 13 :
g_cSize = ZSTD_compress(buff2, dstBuffSize, src, srcSize, 1);
break;
case 31: /* ZSTD_decodeLiteralsBlock */
{ blockProperties_t bp;
ZSTD_frameHeader zfp;
size_t frameHeaderSize, skippedSize;
g_cSize = ZSTD_compress(dstBuff, dstBuffSize, src, srcSize, 1);
frameHeaderSize = ZSTD_getFrameHeader(&zfp, dstBuff, ZSTD_frameHeaderSize_min);
if (frameHeaderSize==0) frameHeaderSize = ZSTD_frameHeaderSize_min;
ZSTD_getcBlockSize(dstBuff+frameHeaderSize, dstBuffSize, &bp); /* Get 1st block type */
if (bp.blockType != bt_compressed) {
DISPLAY("ZSTD_decodeLiteralsBlock : impossible to test on this sample (not compressible)\n");
goto _cleanOut;
}
skippedSize = frameHeaderSize + ZSTD_blockHeaderSize;
memcpy(buff2, dstBuff+skippedSize, g_cSize-skippedSize);
srcSize = srcSize > 128 KB ? 128 KB : srcSize; /* speed relative to block */
break;
}
case 32: /* ZSTD_decodeSeqHeaders */
{ blockProperties_t bp;
ZSTD_frameHeader zfp;
const BYTE* ip = dstBuff;
const BYTE* iend;
size_t frameHeaderSize, cBlockSize;
ZSTD_compress(dstBuff, dstBuffSize, src, srcSize, 1); /* it would be better to use direct block compression here */
g_cSize = ZSTD_compress(dstBuff, dstBuffSize, src, srcSize, 1);
frameHeaderSize = ZSTD_getFrameHeader(&zfp, dstBuff, ZSTD_frameHeaderSize_min);
if (frameHeaderSize==0) frameHeaderSize = ZSTD_frameHeaderSize_min;
ip += frameHeaderSize; /* Skip frame Header */
cBlockSize = ZSTD_getcBlockSize(ip, dstBuffSize, &bp); /* Get 1st block type */
if (bp.blockType != bt_compressed) {
DISPLAY("ZSTD_decodeSeqHeaders : impossible to test on this sample (not compressible)\n");
goto _cleanOut;
}
iend = ip + ZSTD_blockHeaderSize + cBlockSize; /* End of first block */
ip += ZSTD_blockHeaderSize; /* skip block header */
ZSTD_decompressBegin(g_zdc);
ip += ZSTD_decodeLiteralsBlock(g_zdc, ip, iend-ip); /* skip literal segment */
g_cSize = iend-ip;
memcpy(buff2, ip, g_cSize); /* copy rest of block (it starts by SeqHeader) */
srcSize = srcSize > 128 KB ? 128 KB : srcSize; /* speed relative to block */
break;
}
#else
case 31:
goto _cleanOut;
#endif
case 42 :
g_cSize = ZSTD_compress(buff2, dstBuffSize, src, srcSize, 1);
break;
/* test functions */
/* by convention, test functions can be added > 100 */
default : ;
}
{ size_t i; for (i=0; i<dstBuffSize; i++) dstBuff[i]=(BYTE)i; } /* warming up memory */
{ U32 loopNb;
DISPLAY("%2i- %-30.30s : \r", benchNb, benchName);
for (loopNb = 1; loopNb <= g_nbIterations; loopNb++) {
clock_t const timeLoop = TIMELOOP_S * CLOCKS_PER_SEC;
clock_t clockStart;
size_t benchResult=0;
U32 nbRounds;
clockStart = clock();
while (clock() == clockStart);
clockStart = clock();
for (nbRounds=0; BMK_clockSpan(clockStart) < timeLoop; nbRounds++) {
benchResult = benchFunction(dstBuff, dstBuffSize, buff2, src, srcSize);
if (ZSTD_isError(benchResult)) { DISPLAY("ERROR ! %s() => %s !! \n", benchName, ZSTD_getErrorName(benchResult)); exit(1); }
}
{ clock_t const clockTotal = BMK_clockSpan(clockStart);
double const averageTime = (double)clockTotal / CLOCKS_PER_SEC / nbRounds;
if (averageTime < bestTime) bestTime = averageTime;
DISPLAY("%2i- %-30.30s : %7.1f MB/s (%9u)\r", loopNb, benchName, (double)srcSize / (1 MB) / bestTime, (U32)benchResult);
} } }
DISPLAY("%2u\n", benchNb);
_cleanOut:
free(dstBuff);
free(buff2);
return 0;
}
static int benchSample(U32 benchNb)
{
size_t const benchedSize = g_sampleSize;
const char* name = "Sample 10MiB";
/* Allocation */
void* 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(" %s : \n", name);
if (benchNb)
benchMem(origBuff, benchedSize, benchNb);
else
for (benchNb=0; benchNb<100; benchNb++) benchMem(origBuff, benchedSize, benchNb);
free(origBuff);
return 0;
}
static int benchFiles(const char** fileNamesTable, const int nbFiles, U32 benchNb)
{
/* Loop for each file */
int fileIdx;
for (fileIdx=0; fileIdx<nbFiles; fileIdx++) {
const char* inFileName = fileNamesTable[fileIdx];
FILE* inFile = fopen( inFileName, "rb" );
U64 inFileSize;
size_t benchedSize;
void* origBuff;
/* Check file existence */
if (inFile==NULL) { DISPLAY( "Pb opening %s\n", inFileName); return 11; }
/* Memory allocation & restrictions */
inFileSize = UTIL_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 %u MB only...\n", inFileName, (U32)(benchedSize>>20));
/* Alloc */
origBuff = malloc(benchedSize);
if (!origBuff) { DISPLAY("\nError: not enough memory!\n"); fclose(inFile); return 12; }
/* Fill input buffer */
DISPLAY("Loading %s... \r", inFileName);
{
size_t 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(" %s : \n", inFileName);
if (benchNb)
benchMem(origBuff, benchedSize, benchNb);
else
for (benchNb=0; benchNb<100; benchNb++) benchMem(origBuff, benchedSize, benchNb);
free(origBuff);
}
return 0;
}
static int usage(const char* exename)
{
DISPLAY( "Usage :\n");
DISPLAY( " %s [arg] file1 file2 ... fileX\n", exename);
DISPLAY( "Arguments :\n");
DISPLAY( " -H/-h : Help (this text + advanced options)\n");
return 0;
}
static int usage_advanced(const char* exename)
{
usage(exename);
DISPLAY( "\nAdvanced options :\n");
DISPLAY( " -b# : test only function # \n");
DISPLAY( " -i# : iteration loops [1-9](default : %i)\n", NBLOOPS);
DISPLAY( " -P# : sample compressibility (default : %.1f%%)\n", COMPRESSIBILITY_DEFAULT * 100);
return 0;
}
static int badusage(const char* exename)
{
DISPLAY("Wrong parameters\n");
usage(exename);
return 1;
}
int main(int argc, const char** argv)
{
int i, filenamesStart=0, result;
const char* exename = argv[0];
const char* input_filename = NULL;
U32 benchNb = 0, main_pause = 0;
DISPLAY(WELCOME_MESSAGE);
if (argc<1) return badusage(exename);
for(i=1; i<argc; i++) {
const char* argument = argv[i];
if(!argument) continue; /* Protection if argument empty */
/* Commands (note : aggregated commands are allowed) */
if (argument[0]=='-') {
while (argument[1]!=0) {
argument++;
switch(argument[0])
{
/* Display help on usage */
case 'h':
case 'H': return usage_advanced(exename);
/* Pause at the end (hidden option) */
case 'p': main_pause = 1; break;
/* Select specific algorithm to bench */
case 'b':
benchNb = 0;
while ((argument[1]>= '0') && (argument[1]<= '9')) {
benchNb *= 10;
benchNb += argument[1] - '0';
argument++;
}
break;
/* Modify Nb Iterations */
case 'i':
if ((argument[1] >='0') && (argument[1] <='9')) {
int iters = argument[1] - '0';
BMK_SetNbIterations(iters);
argument++;
}
break;
/* Select compressibility of synthetic sample */
case 'P':
{ U32 proba32 = 0;
while ((argument[1]>= '0') && (argument[1]<= '9')) {
proba32 *= 10;
proba32 += argument[1] - '0';
argument++;
}
g_compressibility = (double)proba32 / 100.;
}
break;
/* Unknown command */
default : return badusage(exename);
}
}
continue;
}
/* first provided filename is input */
if (!input_filename) { input_filename=argument; filenamesStart=i; continue; }
}
if (filenamesStart==0) /* no input file */
result = benchSample(benchNb);
else
result = benchFiles(argv+filenamesStart, argc-filenamesStart, benchNb);
if (main_pause) { int unused; printf("press enter...\n"); unused = getchar(); (void)unused; }
return result;
}
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