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freebsd-skq/sys/contrib/zstd/tests/fullbench.c
cem e5805639e2 Update to Zstandard 1.4.2 
The full release notes for 1.4.1 (skipped) and 1.4.2 can be found on Github:

  https://github.com/facebook/zstd/releases/tag/v1.4.1
  https://github.com/facebook/zstd/releases/tag/v1.4.2

These are mostly minor updates; 1.4.1 purportedly brings something like 7%
faster decompression speed.

Relnotes:	yes
2019-08-08 16:54:22 +00:00

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/*
* Copyright (c) 2015-present, Yann Collet, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under both the BSD-style license (found in the
* LICENSE file in the root directory of this source tree) and the GPLv2 (found
* in the COPYING file in the root directory of this source tree).
* You may select, at your option, one of the above-listed licenses.
*/
/*_************************************
* Includes
**************************************/
#include "util.h" /* Compiler options, UTIL_GetFileSize */
#include <stdlib.h> /* malloc */
#include <stdio.h> /* fprintf, fopen, ftello64 */
#include <assert.h>
#include "timefn.h" /* UTIL_clockSpanNano, UTIL_getTime */
#include "mem.h" /* U32 */
#ifndef ZSTD_DLL_IMPORT
#include "zstd_internal.h" /* ZSTD_decodeSeqHeaders, ZSTD_blockHeaderSize, blockType_e, KB, MB */
#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
#define ZSTD_STATIC_LINKING_ONLY /* ZSTD_compressBegin, ZSTD_compressContinue, etc. */
#include "zstd.h" /* ZSTD_versionString */
#include "util.h" /* time functions */
#include "datagen.h"
#include "benchfn.h" /* CustomBench */
#include "benchzstd.h" /* MB_UNIT */
/*_************************************
* 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_versionString(), (int)(sizeof(void*)*8), AUTHOR, __DATE__
#define NBLOOPS 6
#define TIMELOOP_S 2
#define KNUTH 2654435761U
#define MAX_MEM (1984 MB)
#define DEFAULT_CLEVEL 1
#define COMPRESSIBILITY_DEFAULT 0.50
static const size_t kSampleSizeDefault = 10000000;
#define TIMELOOP_NANOSEC (1*1000000000ULL) /* 1 second */
/*_************************************
* Macros
**************************************/
#define DISPLAY(...) fprintf(stderr, __VA_ARGS__)
#define CONTROL(c) { if (!(c)) { abort(); } } /* like assert(), but cannot be disabled */
/*_************************************
* Benchmark Parameters
**************************************/
static unsigned g_nbIterations = NBLOOPS;
/*_*******************************************************
* Private functions
*********************************************************/
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
*********************************************************/
static ZSTD_CCtx* g_zcc = NULL;
static size_t
local_ZSTD_compress(const void* src, size_t srcSize,
void* dst, size_t dstSize,
void* payload)
{
ZSTD_parameters p;
ZSTD_frameParameters f = { 1 /* contentSizeHeader*/, 0, 0 };
p.fParams = f;
p.cParams = *(ZSTD_compressionParameters*)payload;
return ZSTD_compress_advanced (g_zcc, dst, dstSize, src, srcSize, NULL ,0, p);
//return ZSTD_compress(dst, dstSize, src, srcSize, cLevel);
}
static size_t g_cSize = 0;
static size_t local_ZSTD_decompress(const void* src, size_t srcSize,
void* dst, size_t dstSize,
void* buff2)
{
(void)src; (void)srcSize;
return ZSTD_decompress(dst, dstSize, buff2, g_cSize);
}
static ZSTD_DCtx* g_zdc = NULL;
#ifndef ZSTD_DLL_IMPORT
extern size_t ZSTD_decodeLiteralsBlock(ZSTD_DCtx* ctx, const void* src, size_t srcSize);
static size_t local_ZSTD_decodeLiteralsBlock(const void* src, size_t srcSize, void* dst, size_t dstSize, void* buff2)
{
(void)src; (void)srcSize; (void)dst; (void)dstSize;
return ZSTD_decodeLiteralsBlock(g_zdc, buff2, g_cSize);
}
static size_t local_ZSTD_decodeSeqHeaders(const void* src, size_t srcSize, void* dst, size_t dstSize, void* buff2)
{
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;
static size_t
local_ZSTD_compressStream(const void* src, size_t srcSize,
void* dst, size_t dstCapacity,
void* payload)
{
ZSTD_outBuffer buffOut;
ZSTD_inBuffer buffIn;
ZSTD_parameters p;
ZSTD_frameParameters f = {1 /* contentSizeHeader*/, 0, 0};
p.fParams = f;
p.cParams = *(ZSTD_compressionParameters*)payload;
ZSTD_initCStream_advanced(g_cstream, NULL, 0, p, ZSTD_CONTENTSIZE_UNKNOWN);
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_compressStream_freshCCtx(const void* src, size_t srcSize,
void* dst, size_t dstCapacity,
void* payload)
{
ZSTD_CCtx* const cctx = ZSTD_createCCtx();
size_t r;
assert(cctx != NULL);
r = local_ZSTD_compressStream(src, srcSize, dst, dstCapacity, payload);
ZSTD_freeCCtx(cctx);
return r;
}
static size_t
local_ZSTD_compress_generic_end(const void* src, size_t srcSize,
void* dst, size_t dstCapacity,
void* payload)
{
(void)payload;
return ZSTD_compress2(g_cstream, dst, dstCapacity, src, srcSize);
}
static size_t
local_ZSTD_compress_generic_continue(const void* src, size_t srcSize,
void* dst, size_t dstCapacity,
void* payload)
{
ZSTD_outBuffer buffOut;
ZSTD_inBuffer buffIn;
(void)payload;
buffOut.dst = dst;
buffOut.size = dstCapacity;
buffOut.pos = 0;
buffIn.src = src;
buffIn.size = srcSize;
buffIn.pos = 0;
ZSTD_compressStream2(g_cstream, &buffOut, &buffIn, ZSTD_e_continue);
ZSTD_compressStream2(g_cstream, &buffOut, &buffIn, ZSTD_e_end);
return buffOut.pos;
}
static size_t
local_ZSTD_compress_generic_T2_end(const void* src, size_t srcSize,
void* dst, size_t dstCapacity,
void* payload)
{
(void)payload;
ZSTD_CCtx_setParameter(g_cstream, ZSTD_c_nbWorkers, 2);
return ZSTD_compress2(g_cstream, dst, dstCapacity, src, srcSize);
}
static size_t
local_ZSTD_compress_generic_T2_continue(const void* src, size_t srcSize,
void* dst, size_t dstCapacity,
void* payload)
{
ZSTD_outBuffer buffOut;
ZSTD_inBuffer buffIn;
(void)payload;
ZSTD_CCtx_setParameter(g_cstream, ZSTD_c_nbWorkers, 2);
buffOut.dst = dst;
buffOut.size = dstCapacity;
buffOut.pos = 0;
buffIn.src = src;
buffIn.size = srcSize;
buffIn.pos = 0;
ZSTD_compressStream2(g_cstream, &buffOut, &buffIn, ZSTD_e_continue);
while(ZSTD_compressStream2(g_cstream, &buffOut, &buffIn, ZSTD_e_end)) {}
return buffOut.pos;
}
static ZSTD_DStream* g_dstream= NULL;
static size_t
local_ZSTD_decompressStream(const void* src, size_t srcSize,
void* dst, size_t dstCapacity,
void* buff2)
{
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 size_t local_ZSTD_compressContinue(const void* src, size_t srcSize,
void* dst, size_t dstCapacity,
void* payload)
{
ZSTD_parameters p;
ZSTD_frameParameters f = { 1 /* contentSizeHeader*/, 0, 0 };
p.fParams = f;
p.cParams = *(ZSTD_compressionParameters*)payload;
ZSTD_compressBegin_advanced(g_zcc, NULL, 0, p, srcSize);
return ZSTD_compressEnd(g_zcc, dst, dstCapacity, src, srcSize);
}
#define FIRST_BLOCK_SIZE 8
static size_t
local_ZSTD_compressContinue_extDict(const void* src, size_t srcSize,
void* dst, size_t dstCapacity,
void* payload)
{
BYTE firstBlockBuf[FIRST_BLOCK_SIZE];
ZSTD_parameters p;
ZSTD_frameParameters const f = { 1, 0, 0 };
p.fParams = f;
p.cParams = *(ZSTD_compressionParameters*)payload;
ZSTD_compressBegin_advanced(g_zcc, NULL, 0, p, srcSize);
memcpy(firstBlockBuf, src, FIRST_BLOCK_SIZE);
{ 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);
}
static size_t local_ZSTD_decompressContinue(const void* src, size_t srcSize,
void* dst, size_t dstCapacity,
void* buff2)
{
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; /* unused */
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 int benchMem(unsigned benchNb,
const void* src, size_t srcSize,
int cLevel, ZSTD_compressionParameters cparams)
{
size_t dstBuffSize = ZSTD_compressBound(srcSize);
BYTE* dstBuff;
void* dstBuff2;
void* payload;
const char* benchName;
BMK_benchFn_t benchFunction;
int errorcode = 0;
/* Selection */
switch(benchNb)
{
case 1:
benchFunction = local_ZSTD_compress; benchName = "compress";
break;
case 2:
benchFunction = local_ZSTD_decompress; benchName = "decompress";
break;
#ifndef ZSTD_DLL_IMPORT
case 11:
benchFunction = local_ZSTD_compressContinue; benchName = "compressContinue";
break;
case 12:
benchFunction = local_ZSTD_compressContinue_extDict; benchName = "compressContinue_extDict";
break;
case 13:
benchFunction = local_ZSTD_decompressContinue; benchName = "decompressContinue";
break;
case 31:
benchFunction = local_ZSTD_decodeLiteralsBlock; benchName = "decodeLiteralsBlock";
break;
case 32:
benchFunction = local_ZSTD_decodeSeqHeaders; benchName = "decodeSeqHeaders";
break;
#endif
case 41:
benchFunction = local_ZSTD_compressStream; benchName = "compressStream";
break;
case 42:
benchFunction = local_ZSTD_decompressStream; benchName = "decompressStream";
break;
case 43:
benchFunction = local_ZSTD_compressStream_freshCCtx; benchName = "compressStream_freshCCtx";
break;
case 51:
benchFunction = local_ZSTD_compress_generic_continue; benchName = "compress_generic, continue";
break;
case 52:
benchFunction = local_ZSTD_compress_generic_end; benchName = "compress_generic, end";
break;
case 61:
benchFunction = local_ZSTD_compress_generic_T2_continue; benchName = "compress_generic, -T2, continue";
break;
case 62:
benchFunction = local_ZSTD_compress_generic_T2_end; benchName = "compress_generic, -T2, end";
break;
default :
return 0;
}
/* Allocation */
dstBuff = (BYTE*)malloc(dstBuffSize);
dstBuff2 = malloc(dstBuffSize);
if ((!dstBuff) || (!dstBuff2)) {
DISPLAY("\nError: not enough memory!\n");
free(dstBuff); free(dstBuff2);
return 12;
}
payload = dstBuff2;
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();
/* DISPLAY("params: cLevel %d, wlog %d hlog %d clog %d slog %d mml %d tlen %d strat %d \n",
cLevel, cparams->windowLog, cparams->hashLog, cparams->chainLog, cparams->searchLog,
cparams->minMatch, cparams->targetLength, cparams->strategy); */
ZSTD_CCtx_setParameter(g_zcc, ZSTD_c_compressionLevel, cLevel);
ZSTD_CCtx_setParameter(g_zcc, ZSTD_c_windowLog, (int)cparams.windowLog);
ZSTD_CCtx_setParameter(g_zcc, ZSTD_c_hashLog, (int)cparams.hashLog);
ZSTD_CCtx_setParameter(g_zcc, ZSTD_c_chainLog, (int)cparams.chainLog);
ZSTD_CCtx_setParameter(g_zcc, ZSTD_c_searchLog, (int)cparams.searchLog);
ZSTD_CCtx_setParameter(g_zcc, ZSTD_c_minMatch, (int)cparams.minMatch);
ZSTD_CCtx_setParameter(g_zcc, ZSTD_c_targetLength, (int)cparams.targetLength);
ZSTD_CCtx_setParameter(g_zcc, ZSTD_c_strategy, cparams.strategy);
ZSTD_CCtx_setParameter(g_cstream, ZSTD_c_compressionLevel, cLevel);
ZSTD_CCtx_setParameter(g_cstream, ZSTD_c_windowLog, (int)cparams.windowLog);
ZSTD_CCtx_setParameter(g_cstream, ZSTD_c_hashLog, (int)cparams.hashLog);
ZSTD_CCtx_setParameter(g_cstream, ZSTD_c_chainLog, (int)cparams.chainLog);
ZSTD_CCtx_setParameter(g_cstream, ZSTD_c_searchLog, (int)cparams.searchLog);
ZSTD_CCtx_setParameter(g_cstream, ZSTD_c_minMatch, (int)cparams.minMatch);
ZSTD_CCtx_setParameter(g_cstream, ZSTD_c_targetLength, (int)cparams.targetLength);
ZSTD_CCtx_setParameter(g_cstream, ZSTD_c_strategy, cparams.strategy);
/* Preparation */
switch(benchNb)
{
case 1:
payload = &cparams;
break;
case 2:
g_cSize = ZSTD_compress(dstBuff2, dstBuffSize, src, srcSize, cLevel);
break;
#ifndef ZSTD_DLL_IMPORT
case 11:
payload = &cparams;
break;
case 12:
payload = &cparams;
break;
case 13 :
g_cSize = ZSTD_compress(dstBuff2, dstBuffSize, src, srcSize, cLevel);
break;
case 31: /* ZSTD_decodeLiteralsBlock : starts literals block in dstBuff2 */
{ size_t frameHeaderSize;
g_cSize = ZSTD_compress(dstBuff, dstBuffSize, src, srcSize, cLevel);
frameHeaderSize = ZSTD_frameHeaderSize(dstBuff, ZSTD_FRAMEHEADERSIZE_PREFIX);
CONTROL(!ZSTD_isError(frameHeaderSize));
/* check block is compressible, hence contains a literals section */
{ blockProperties_t bp;
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;
} }
{ size_t const skippedSize = frameHeaderSize + ZSTD_blockHeaderSize;
memcpy(dstBuff2, dstBuff+skippedSize, g_cSize-skippedSize);
}
srcSize = srcSize > 128 KB ? 128 KB : srcSize; /* speed relative to block */
ZSTD_decompressBegin(g_zdc);
break;
}
case 32: /* ZSTD_decodeSeqHeaders */
{ blockProperties_t bp;
const BYTE* ip = dstBuff;
const BYTE* iend;
{ size_t const cSize = ZSTD_compress(dstBuff, dstBuffSize, src, srcSize, cLevel);
CONTROL(cSize > ZSTD_FRAMEHEADERSIZE_PREFIX);
}
/* Skip frame Header */
{ size_t const frameHeaderSize = ZSTD_frameHeaderSize(dstBuff, ZSTD_FRAMEHEADERSIZE_PREFIX);
CONTROL(!ZSTD_isError(frameHeaderSize));
ip += frameHeaderSize;
}
/* Find end of block */
{ size_t const 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);
CONTROL(iend > ip);
ip += ZSTD_decodeLiteralsBlock(g_zdc, ip, (size_t)(iend-ip)); /* skip literal segment */
g_cSize = (size_t)(iend-ip);
memcpy(dstBuff2, 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 41 :
payload = &cparams;
break;
case 42 :
g_cSize = ZSTD_compress(payload, dstBuffSize, src, srcSize, cLevel);
break;
case 43 :
payload = &cparams;
break;
/* test functions */
/* convention: test functions have ID > 100 */
default : ;
}
/* warming up dstBuff */
{ size_t i; for (i=0; i<dstBuffSize; i++) dstBuff[i]=(BYTE)i; }
/* benchmark loop */
{ BMK_timedFnState_t* const tfs = BMK_createTimedFnState(g_nbIterations * 1000, 1000);
void* const avoidStrictAliasingPtr = &dstBuff;
BMK_benchParams_t bp;
BMK_runTime_t bestResult;
bestResult.sumOfReturn = 0;
bestResult.nanoSecPerRun = (double)TIMELOOP_NANOSEC * 2000000000; /* hopefully large enough : must be larger than any potential measurement */
CONTROL(tfs != NULL);
bp.benchFn = benchFunction;
bp.benchPayload = payload;
bp.initFn = NULL;
bp.initPayload = NULL;
bp.errorFn = ZSTD_isError;
bp.blockCount = 1;
bp.srcBuffers = &src;
bp.srcSizes = &srcSize;
bp.dstBuffers = (void* const*) avoidStrictAliasingPtr; /* circumvent strict aliasing warning on gcc-8,
* because gcc considers that `void* const *` and `void**` are 2 different types */
bp.dstCapacities = &dstBuffSize;
bp.blockResults = NULL;
for (;;) {
BMK_runOutcome_t const bOutcome = BMK_benchTimedFn(tfs, bp);
if (!BMK_isSuccessful_runOutcome(bOutcome)) {
DISPLAY("ERROR benchmarking function ! ! \n");
errorcode = 1;
goto _cleanOut;
}
{ BMK_runTime_t const newResult = BMK_extract_runTime(bOutcome);
if (newResult.nanoSecPerRun < bestResult.nanoSecPerRun )
bestResult.nanoSecPerRun = newResult.nanoSecPerRun;
DISPLAY("\r%2u#%-29.29s:%8.1f MB/s (%8u) ",
benchNb, benchName,
(double)srcSize * TIMELOOP_NANOSEC / bestResult.nanoSecPerRun / MB_UNIT,
(unsigned)newResult.sumOfReturn );
}
if ( BMK_isCompleted_TimedFn(tfs) ) break;
}
BMK_freeTimedFnState(tfs);
}
DISPLAY("\n");
_cleanOut:
free(dstBuff);
free(dstBuff2);
ZSTD_freeCCtx(g_zcc); g_zcc=NULL;
ZSTD_freeDCtx(g_zdc); g_zdc=NULL;
ZSTD_freeCStream(g_cstream); g_cstream=NULL;
ZSTD_freeDStream(g_dstream); g_dstream=NULL;
return errorcode;
}
static int benchSample(U32 benchNb,
size_t benchedSize, double compressibility,
int cLevel, ZSTD_compressionParameters cparams)
{
/* Allocation */
void* const origBuff = malloc(benchedSize);
if (!origBuff) { DISPLAY("\nError: not enough memory!\n"); return 12; }
/* Fill buffer */
RDG_genBuffer(origBuff, benchedSize, compressibility, 0.0, 0);
/* bench */
DISPLAY("\r%70s\r", "");
DISPLAY(" Sample %u bytes : \n", (unsigned)benchedSize);
if (benchNb) {
benchMem(benchNb, origBuff, benchedSize, cLevel, cparams);
} else { /* 0 == run all tests */
for (benchNb=0; benchNb<100; benchNb++) {
benchMem(benchNb, origBuff, benchedSize, cLevel, cparams);
} }
free(origBuff);
return 0;
}
static int benchFiles(U32 benchNb,
const char** fileNamesTable, const int nbFiles,
int cLevel, ZSTD_compressionParameters cparams)
{
/* Loop for each file */
int fileIdx;
for (fileIdx=0; fileIdx<nbFiles; fileIdx++) {
const char* const inFileName = fileNamesTable[fileIdx];
FILE* const inFile = fopen( inFileName, "rb" );
size_t benchedSize;
/* Check file existence */
if (inFile==NULL) { DISPLAY( "Pb opening %s\n", inFileName); return 11; }
/* Memory allocation & restrictions */
{ U64 const inFileSize = UTIL_getFileSize(inFileName);
if (inFileSize == UTIL_FILESIZE_UNKNOWN) {
DISPLAY( "Cannot measure size of %s\n", inFileName);
fclose(inFile);
return 11;
}
benchedSize = BMK_findMaxMem(inFileSize*3) / 3;
if ((U64)benchedSize > inFileSize)
benchedSize = (size_t)inFileSize;
if ((U64)benchedSize < inFileSize) {
DISPLAY("Not enough memory for '%s' full size; testing %u MB only... \n",
inFileName, (unsigned)(benchedSize>>20));
} }
/* Alloc */
{ void* const 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 const 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%70s\r", ""); /* blank line */
DISPLAY(" %s : \n", inFileName);
if (benchNb) {
benchMem(benchNb, origBuff, benchedSize, cLevel, cparams);
} else {
for (benchNb=0; benchNb<100; benchNb++) {
benchMem(benchNb, origBuff, benchedSize, cLevel, cparams);
} }
free(origBuff);
} }
return 0;
}
/*_*******************************************************
* Argument Parsing
*********************************************************/
#define ERROR_OUT(msg) { DISPLAY("%s \n", msg); exit(1); }
static unsigned readU32FromChar(const char** stringPtr)
{
const char errorMsg[] = "error: numeric value too large";
unsigned result = 0;
while ((**stringPtr >='0') && (**stringPtr <='9')) {
unsigned const max = (((unsigned)(-1)) / 10) - 1;
if (result > max) ERROR_OUT(errorMsg);
result *= 10;
result += (unsigned)(**stringPtr - '0');
(*stringPtr)++ ;
}
if ((**stringPtr=='K') || (**stringPtr=='M')) {
unsigned const maxK = ((unsigned)(-1)) >> 10;
if (result > maxK) ERROR_OUT(errorMsg);
result <<= 10;
if (**stringPtr=='M') {
if (result > maxK) ERROR_OUT(errorMsg);
result <<= 10;
}
(*stringPtr)++; /* skip `K` or `M` */
if (**stringPtr=='i') (*stringPtr)++;
if (**stringPtr=='B') (*stringPtr)++;
}
return result;
}
static int longCommandWArg(const char** stringPtr, const char* longCommand)
{
size_t const comSize = strlen(longCommand);
int const result = !strncmp(*stringPtr, longCommand, comSize);
if (result) *stringPtr += comSize;
return result;
}
/*_*******************************************************
* Command line
*********************************************************/
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( " -l# : benchmark functions at that compression level (default : %i)\n", DEFAULT_CLEVEL);
DISPLAY( " --zstd : custom parameter selection. Format same as zstdcli \n");
DISPLAY( " -P# : sample compressibility (default : %.1f%%)\n", COMPRESSIBILITY_DEFAULT * 100);
DISPLAY( " -B# : sample size (default : %u)\n", (unsigned)kSampleSizeDefault);
DISPLAY( " -i# : iteration loops [1-9](default : %i)\n", NBLOOPS);
return 0;
}
static int badusage(const char* exename)
{
DISPLAY("Wrong parameters\n");
usage(exename);
return 1;
}
int main(int argc, const char** argv)
{
int argNb, filenamesStart=0, result;
const char* const exename = argv[0];
const char* input_filename = NULL;
U32 benchNb = 0, main_pause = 0;
int cLevel = DEFAULT_CLEVEL;
ZSTD_compressionParameters cparams = ZSTD_getCParams(cLevel, 0, 0);
size_t sampleSize = kSampleSizeDefault;
double compressibility = COMPRESSIBILITY_DEFAULT;
DISPLAY(WELCOME_MESSAGE);
if (argc<1) return badusage(exename);
for (argNb=1; argNb<argc; argNb++) {
const char* argument = argv[argNb];
CONTROL(argument != NULL);
if (longCommandWArg(&argument, "--zstd=")) {
for ( ; ;) {
if (longCommandWArg(&argument, "windowLog=") || longCommandWArg(&argument, "wlog=")) { cparams.windowLog = readU32FromChar(&argument); if (argument[0]==',') { argument++; continue; } else break; }
if (longCommandWArg(&argument, "chainLog=") || longCommandWArg(&argument, "clog=")) { cparams.chainLog = readU32FromChar(&argument); if (argument[0]==',') { argument++; continue; } else break; }
if (longCommandWArg(&argument, "hashLog=") || longCommandWArg(&argument, "hlog=")) { cparams.hashLog = readU32FromChar(&argument); if (argument[0]==',') { argument++; continue; } else break; }
if (longCommandWArg(&argument, "searchLog=") || longCommandWArg(&argument, "slog=")) { cparams.searchLog = readU32FromChar(&argument); if (argument[0]==',') { argument++; continue; } else break; }
if (longCommandWArg(&argument, "minMatch=") || longCommandWArg(&argument, "mml=")) { cparams.minMatch = readU32FromChar(&argument); if (argument[0]==',') { argument++; continue; } else break; }
if (longCommandWArg(&argument, "targetLength=") || longCommandWArg(&argument, "tlen=")) { cparams.targetLength = readU32FromChar(&argument); if (argument[0]==',') { argument++; continue; } else break; }
if (longCommandWArg(&argument, "strategy=") || longCommandWArg(&argument, "strat=")) { cparams.strategy = (ZSTD_strategy)(readU32FromChar(&argument)); if (argument[0]==',') { argument++; continue; } else break; }
if (longCommandWArg(&argument, "level=") || longCommandWArg(&argument, "lvl=")) { cLevel = (int)readU32FromChar(&argument); cparams = ZSTD_getCParams(cLevel, 0, 0); if (argument[0]==',') { argument++; continue; } else break; }
DISPLAY("invalid compression parameter \n");
return 1;
}
/* check end of string */
if (argument[0] != 0) {
DISPLAY("invalid --zstd= format \n");
return 1;
} else {
continue;
}
} else if (argument[0]=='-') { /* Commands (note : aggregated commands are allowed) */
argument++;
while (argument[0]!=0) {
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':
argument++;
benchNb = readU32FromChar(&argument);
break;
/* Select compression level to use */
case 'l':
argument++;
cLevel = (int)readU32FromChar(&argument);
cparams = ZSTD_getCParams(cLevel, 0, 0);
break;
/* Select compressibility of synthetic sample */
case 'P':
argument++;
compressibility = (double)readU32FromChar(&argument) / 100.;
break;
/* Select size of synthetic sample */
case 'B':
argument++;
sampleSize = (size_t)readU32FromChar(&argument);
break;
/* Modify Nb Iterations */
case 'i':
argument++;
g_nbIterations = readU32FromChar(&argument);
break;
/* Unknown command */
default : return badusage(exename);
}
}
continue;
}
/* first provided filename is input */
if (!input_filename) { input_filename=argument; filenamesStart=argNb; continue; }
}
if (filenamesStart==0) /* no input file */
result = benchSample(benchNb, sampleSize, compressibility, cLevel, cparams);
else
result = benchFiles(benchNb, argv+filenamesStart, argc-filenamesStart, cLevel, cparams);
if (main_pause) { int unused; printf("press enter...\n"); unused = getchar(); (void)unused; }
return result;
}
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