1024 lines
37 KiB
C
1024 lines
37 KiB
C
/**
|
|
* 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.
|
|
*/
|
|
|
|
|
|
/*-************************************
|
|
* Dependencies
|
|
**************************************/
|
|
#include "util.h" /* Compiler options, UTIL_GetFileSize */
|
|
#include <stdlib.h> /* malloc */
|
|
#include <stdio.h> /* fprintf, fopen, ftello64 */
|
|
#include <string.h> /* strcmp */
|
|
#include <math.h> /* log */
|
|
#include <time.h> /* clock_t */
|
|
|
|
#include "mem.h"
|
|
#define ZSTD_STATIC_LINKING_ONLY /* ZSTD_parameters, ZSTD_estimateCCtxSize */
|
|
#include "zstd.h"
|
|
#include "datagen.h"
|
|
#include "xxhash.h"
|
|
|
|
|
|
/*-************************************
|
|
* Constants
|
|
**************************************/
|
|
#define PROGRAM_DESCRIPTION "ZSTD parameters tester"
|
|
#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 KB *(1<<10)
|
|
#define MB *(1<<20)
|
|
#define GB *(1ULL<<30)
|
|
|
|
#define NBLOOPS 2
|
|
#define TIMELOOP (2 * CLOCKS_PER_SEC)
|
|
|
|
#define NB_LEVELS_TRACKED 30
|
|
|
|
static const size_t maxMemory = (sizeof(size_t)==4) ? (2 GB - 64 MB) : (size_t)(1ULL << ((sizeof(size_t)*8)-31));
|
|
|
|
#define COMPRESSIBILITY_DEFAULT 0.50
|
|
static const size_t sampleSize = 10000000;
|
|
|
|
static const U32 g_grillDuration_s = 60000; /* about 16 hours */
|
|
static const clock_t g_maxParamTime = 15 * CLOCKS_PER_SEC;
|
|
static const clock_t g_maxVariationTime = 60 * CLOCKS_PER_SEC;
|
|
static const int g_maxNbVariations = 64;
|
|
|
|
|
|
/*-************************************
|
|
* Macros
|
|
**************************************/
|
|
#define DISPLAY(...) fprintf(stderr, __VA_ARGS__)
|
|
|
|
|
|
/*-************************************
|
|
* Benchmark Parameters
|
|
**************************************/
|
|
static U32 g_nbIterations = NBLOOPS;
|
|
static double g_compressibility = COMPRESSIBILITY_DEFAULT;
|
|
static U32 g_blockSize = 0;
|
|
static U32 g_rand = 1;
|
|
static U32 g_singleRun = 0;
|
|
static U32 g_target = 0;
|
|
static U32 g_noSeed = 0;
|
|
static ZSTD_compressionParameters g_params = { 0, 0, 0, 0, 0, 0, ZSTD_greedy };
|
|
|
|
void BMK_SetNbIterations(int nbLoops)
|
|
{
|
|
g_nbIterations = nbLoops;
|
|
DISPLAY("- %u iterations -\n", g_nbIterations);
|
|
}
|
|
|
|
|
|
/*-*******************************************************
|
|
* Private functions
|
|
*********************************************************/
|
|
|
|
static clock_t BMK_clockSpan(clock_t cStart) { return clock() - cStart; } /* works even if overflow ; max span ~ 30 mn */
|
|
|
|
static U32 BMK_timeSpan(time_t tStart) { return (U32)difftime(time(NULL), tStart); } /* accuracy in seconds only, span can be multiple years */
|
|
|
|
|
|
static size_t BMK_findMaxMem(U64 requiredMem)
|
|
{
|
|
size_t const step = 64 MB;
|
|
void* testmem = NULL;
|
|
|
|
requiredMem = (((requiredMem >> 26) + 1) << 26);
|
|
if (requiredMem > maxMemory) requiredMem = maxMemory;
|
|
|
|
requiredMem += 2*step;
|
|
while (!testmem) {
|
|
requiredMem -= step;
|
|
testmem = malloc ((size_t)requiredMem);
|
|
}
|
|
|
|
free (testmem);
|
|
return (size_t) (requiredMem - step);
|
|
}
|
|
|
|
|
|
# define FUZ_rotl32(x,r) ((x << r) | (x >> (32 - r)))
|
|
U32 FUZ_rand(U32* src)
|
|
{
|
|
const U32 prime1 = 2654435761U;
|
|
const U32 prime2 = 2246822519U;
|
|
U32 rand32 = *src;
|
|
rand32 *= prime1;
|
|
rand32 += prime2;
|
|
rand32 = FUZ_rotl32(rand32, 13);
|
|
*src = rand32;
|
|
return rand32 >> 5;
|
|
}
|
|
|
|
|
|
/*-*******************************************************
|
|
* Bench functions
|
|
*********************************************************/
|
|
typedef struct {
|
|
size_t cSize;
|
|
double cSpeed;
|
|
double dSpeed;
|
|
} BMK_result_t;
|
|
|
|
typedef struct
|
|
{
|
|
const char* srcPtr;
|
|
size_t srcSize;
|
|
char* cPtr;
|
|
size_t cRoom;
|
|
size_t cSize;
|
|
char* resPtr;
|
|
size_t resSize;
|
|
} blockParam_t;
|
|
|
|
|
|
#define MIN(a,b) ( (a) < (b) ? (a) : (b) )
|
|
|
|
static size_t BMK_benchParam(BMK_result_t* resultPtr,
|
|
const void* srcBuffer, size_t srcSize,
|
|
ZSTD_CCtx* ctx,
|
|
const ZSTD_compressionParameters cParams)
|
|
{
|
|
const size_t blockSize = g_blockSize ? g_blockSize : srcSize;
|
|
const U32 nbBlocks = (U32) ((srcSize + (blockSize-1)) / blockSize);
|
|
blockParam_t* const blockTable = (blockParam_t*) malloc(nbBlocks * sizeof(blockParam_t));
|
|
const size_t maxCompressedSize = (size_t)nbBlocks * ZSTD_compressBound(blockSize);
|
|
void* const compressedBuffer = malloc(maxCompressedSize);
|
|
void* const resultBuffer = malloc(srcSize);
|
|
ZSTD_parameters params;
|
|
U32 Wlog = cParams.windowLog;
|
|
U32 Clog = cParams.chainLog;
|
|
U32 Hlog = cParams.hashLog;
|
|
U32 Slog = cParams.searchLog;
|
|
U32 Slength = cParams.searchLength;
|
|
U32 Tlength = cParams.targetLength;
|
|
ZSTD_strategy strat = cParams.strategy;
|
|
char name[30] = { 0 };
|
|
U64 crcOrig;
|
|
|
|
/* Memory allocation & restrictions */
|
|
snprintf(name, 30, "Sw%02uc%02uh%02us%02ul%1ut%03uS%1u", Wlog, Clog, Hlog, Slog, Slength, Tlength, strat);
|
|
if (!compressedBuffer || !resultBuffer || !blockTable) {
|
|
DISPLAY("\nError: not enough memory!\n");
|
|
free(compressedBuffer);
|
|
free(resultBuffer);
|
|
free(blockTable);
|
|
return 12;
|
|
}
|
|
|
|
/* Calculating input Checksum */
|
|
crcOrig = XXH64(srcBuffer, srcSize, 0);
|
|
|
|
/* Init blockTable data */
|
|
{
|
|
U32 i;
|
|
size_t remaining = srcSize;
|
|
const char* srcPtr = (const char*)srcBuffer;
|
|
char* cPtr = (char*)compressedBuffer;
|
|
char* resPtr = (char*)resultBuffer;
|
|
for (i=0; i<nbBlocks; i++) {
|
|
size_t thisBlockSize = MIN(remaining, blockSize);
|
|
blockTable[i].srcPtr = srcPtr;
|
|
blockTable[i].cPtr = cPtr;
|
|
blockTable[i].resPtr = resPtr;
|
|
blockTable[i].srcSize = thisBlockSize;
|
|
blockTable[i].cRoom = ZSTD_compressBound(thisBlockSize);
|
|
srcPtr += thisBlockSize;
|
|
cPtr += blockTable[i].cRoom;
|
|
resPtr += thisBlockSize;
|
|
remaining -= thisBlockSize;
|
|
} }
|
|
|
|
/* warmimg up memory */
|
|
RDG_genBuffer(compressedBuffer, maxCompressedSize, 0.10, 0.10, 1);
|
|
|
|
/* Bench */
|
|
{ U32 loopNb;
|
|
size_t cSize = 0;
|
|
double fastestC = 100000000., fastestD = 100000000.;
|
|
double ratio = 0.;
|
|
U64 crcCheck = 0;
|
|
clock_t const benchStart = clock();
|
|
|
|
DISPLAY("\r%79s\r", "");
|
|
memset(¶ms, 0, sizeof(params));
|
|
params.cParams = cParams;
|
|
for (loopNb = 1; loopNb <= g_nbIterations; loopNb++) {
|
|
int nbLoops;
|
|
U32 blockNb;
|
|
clock_t roundStart, roundClock;
|
|
|
|
{ clock_t const benchTime = BMK_clockSpan(benchStart);
|
|
if (benchTime > g_maxParamTime) break; }
|
|
|
|
/* Compression */
|
|
DISPLAY("\r%1u-%s : %9u ->", loopNb, name, (U32)srcSize);
|
|
memset(compressedBuffer, 0xE5, maxCompressedSize);
|
|
|
|
nbLoops = 0;
|
|
roundStart = clock();
|
|
while (clock() == roundStart);
|
|
roundStart = clock();
|
|
while (BMK_clockSpan(roundStart) < TIMELOOP) {
|
|
for (blockNb=0; blockNb<nbBlocks; blockNb++)
|
|
blockTable[blockNb].cSize = ZSTD_compress_advanced(ctx,
|
|
blockTable[blockNb].cPtr, blockTable[blockNb].cRoom,
|
|
blockTable[blockNb].srcPtr, blockTable[blockNb].srcSize,
|
|
NULL, 0,
|
|
params);
|
|
nbLoops++;
|
|
}
|
|
roundClock = BMK_clockSpan(roundStart);
|
|
|
|
cSize = 0;
|
|
for (blockNb=0; blockNb<nbBlocks; blockNb++)
|
|
cSize += blockTable[blockNb].cSize;
|
|
if ((double)roundClock < fastestC * CLOCKS_PER_SEC * nbLoops) fastestC = ((double)roundClock / CLOCKS_PER_SEC) / nbLoops;
|
|
ratio = (double)srcSize / (double)cSize;
|
|
DISPLAY("\r");
|
|
DISPLAY("%1u-%s : %9u ->", loopNb, name, (U32)srcSize);
|
|
DISPLAY(" %9u (%4.3f),%7.1f MB/s", (U32)cSize, ratio, (double)srcSize / fastestC / 1000000.);
|
|
resultPtr->cSize = cSize;
|
|
resultPtr->cSpeed = (double)srcSize / fastestC;
|
|
|
|
#if 1
|
|
/* Decompression */
|
|
memset(resultBuffer, 0xD6, srcSize);
|
|
|
|
nbLoops = 0;
|
|
roundStart = clock();
|
|
while (clock() == roundStart);
|
|
roundStart = clock();
|
|
for ( ; BMK_clockSpan(roundStart) < TIMELOOP; nbLoops++) {
|
|
for (blockNb=0; blockNb<nbBlocks; blockNb++)
|
|
blockTable[blockNb].resSize = ZSTD_decompress(blockTable[blockNb].resPtr, blockTable[blockNb].srcSize,
|
|
blockTable[blockNb].cPtr, blockTable[blockNb].cSize);
|
|
}
|
|
roundClock = BMK_clockSpan(roundStart);
|
|
|
|
if ((double)roundClock < fastestD * CLOCKS_PER_SEC * nbLoops) fastestD = ((double)roundClock / CLOCKS_PER_SEC) / nbLoops;
|
|
DISPLAY("\r");
|
|
DISPLAY("%1u-%s : %9u -> ", loopNb, name, (U32)srcSize);
|
|
DISPLAY("%9u (%4.3f),%7.1f MB/s, ", (U32)cSize, ratio, (double)srcSize / fastestC / 1000000.);
|
|
DISPLAY("%7.1f MB/s", (double)srcSize / fastestD / 1000000.);
|
|
resultPtr->dSpeed = (double)srcSize / fastestD;
|
|
|
|
/* CRC Checking */
|
|
crcCheck = XXH64(resultBuffer, srcSize, 0);
|
|
if (crcOrig!=crcCheck) {
|
|
unsigned u;
|
|
unsigned eBlockSize = (unsigned)(MIN(65536*2, blockSize));
|
|
DISPLAY("\n!!! WARNING !!! Invalid Checksum : %x != %x\n", (unsigned)crcOrig, (unsigned)crcCheck);
|
|
for (u=0; u<srcSize; u++) {
|
|
if (((const BYTE*)srcBuffer)[u] != ((BYTE*)resultBuffer)[u]) {
|
|
printf("Decoding error at pos %u (block %u, pos %u) \n", u, u / eBlockSize, u % eBlockSize);
|
|
break;
|
|
} }
|
|
break;
|
|
}
|
|
#endif
|
|
} }
|
|
|
|
/* End cleaning */
|
|
DISPLAY("\r");
|
|
free(compressedBuffer);
|
|
free(resultBuffer);
|
|
return 0;
|
|
}
|
|
|
|
|
|
const char* g_stratName[] = { "ZSTD_fast ",
|
|
"ZSTD_dfast ",
|
|
"ZSTD_greedy ",
|
|
"ZSTD_lazy ",
|
|
"ZSTD_lazy2 ",
|
|
"ZSTD_btlazy2",
|
|
"ZSTD_btopt " };
|
|
|
|
static void BMK_printWinner(FILE* f, U32 cLevel, BMK_result_t result, ZSTD_compressionParameters params, size_t srcSize)
|
|
{
|
|
DISPLAY("\r%79s\r", "");
|
|
fprintf(f," {%3u,%3u,%3u,%3u,%3u,%3u, %s }, ",
|
|
params.windowLog, params.chainLog, params.hashLog, params.searchLog, params.searchLength,
|
|
params.targetLength, g_stratName[(U32)(params.strategy)]);
|
|
fprintf(f,
|
|
"/* level %2u */ /* R:%5.3f at %5.1f MB/s - %5.1f MB/s */\n",
|
|
cLevel, (double)srcSize / result.cSize, result.cSpeed / 1000000., result.dSpeed / 1000000.);
|
|
}
|
|
|
|
|
|
static double g_cSpeedTarget[NB_LEVELS_TRACKED] = { 0. }; /* NB_LEVELS_TRACKED : checked at main() */
|
|
|
|
typedef struct {
|
|
BMK_result_t result;
|
|
ZSTD_compressionParameters params;
|
|
} winnerInfo_t;
|
|
|
|
static void BMK_printWinners2(FILE* f, const winnerInfo_t* winners, size_t srcSize)
|
|
{
|
|
int cLevel;
|
|
|
|
fprintf(f, "\n /* Proposed configurations : */ \n");
|
|
fprintf(f, " /* W, C, H, S, L, T, strat */ \n");
|
|
|
|
for (cLevel=0; cLevel <= ZSTD_maxCLevel(); cLevel++)
|
|
BMK_printWinner(f, cLevel, winners[cLevel].result, winners[cLevel].params, srcSize);
|
|
}
|
|
|
|
|
|
static void BMK_printWinners(FILE* f, const winnerInfo_t* winners, size_t srcSize)
|
|
{
|
|
fseek(f, 0, SEEK_SET);
|
|
BMK_printWinners2(f, winners, srcSize);
|
|
fflush(f);
|
|
BMK_printWinners2(stdout, winners, srcSize);
|
|
}
|
|
|
|
static int BMK_seed(winnerInfo_t* winners, const ZSTD_compressionParameters params,
|
|
const void* srcBuffer, size_t srcSize,
|
|
ZSTD_CCtx* ctx)
|
|
{
|
|
BMK_result_t testResult;
|
|
int better = 0;
|
|
int cLevel;
|
|
|
|
BMK_benchParam(&testResult, srcBuffer, srcSize, ctx, params);
|
|
|
|
for (cLevel = 1; cLevel <= ZSTD_maxCLevel(); cLevel++) {
|
|
if (testResult.cSpeed < g_cSpeedTarget[cLevel])
|
|
continue; /* not fast enough for this level */
|
|
if (winners[cLevel].result.cSize==0) {
|
|
/* first solution for this cLevel */
|
|
winners[cLevel].result = testResult;
|
|
winners[cLevel].params = params;
|
|
BMK_printWinner(stdout, cLevel, testResult, params, srcSize);
|
|
better = 1;
|
|
continue;
|
|
}
|
|
|
|
if ((double)testResult.cSize <= ((double)winners[cLevel].result.cSize * (1. + (0.02 / cLevel))) ) {
|
|
/* Validate solution is "good enough" */
|
|
double W_ratio = (double)srcSize / testResult.cSize;
|
|
double O_ratio = (double)srcSize / winners[cLevel].result.cSize;
|
|
double W_ratioNote = log (W_ratio);
|
|
double O_ratioNote = log (O_ratio);
|
|
size_t W_DMemUsed = (1 << params.windowLog) + (16 KB);
|
|
size_t O_DMemUsed = (1 << winners[cLevel].params.windowLog) + (16 KB);
|
|
double W_DMemUsed_note = W_ratioNote * ( 40 + 9*cLevel) - log((double)W_DMemUsed);
|
|
double O_DMemUsed_note = O_ratioNote * ( 40 + 9*cLevel) - log((double)O_DMemUsed);
|
|
|
|
size_t W_CMemUsed = (1 << params.windowLog) + ZSTD_estimateCCtxSize(params);
|
|
size_t O_CMemUsed = (1 << winners[cLevel].params.windowLog) + ZSTD_estimateCCtxSize(winners[cLevel].params);
|
|
double W_CMemUsed_note = W_ratioNote * ( 50 + 13*cLevel) - log((double)W_CMemUsed);
|
|
double O_CMemUsed_note = O_ratioNote * ( 50 + 13*cLevel) - log((double)O_CMemUsed);
|
|
|
|
double W_CSpeed_note = W_ratioNote * ( 30 + 10*cLevel) + log(testResult.cSpeed);
|
|
double O_CSpeed_note = O_ratioNote * ( 30 + 10*cLevel) + log(winners[cLevel].result.cSpeed);
|
|
|
|
double W_DSpeed_note = W_ratioNote * ( 20 + 2*cLevel) + log(testResult.dSpeed);
|
|
double O_DSpeed_note = O_ratioNote * ( 20 + 2*cLevel) + log(winners[cLevel].result.dSpeed);
|
|
|
|
if (W_DMemUsed_note < O_DMemUsed_note) {
|
|
/* uses too much Decompression memory for too little benefit */
|
|
if (W_ratio > O_ratio)
|
|
DISPLAY ("Decompression Memory : %5.3f @ %4.1f MB vs %5.3f @ %4.1f MB : not enough for level %i\n",
|
|
W_ratio, (double)(W_DMemUsed) / 1024 / 1024,
|
|
O_ratio, (double)(O_DMemUsed) / 1024 / 1024, cLevel);
|
|
continue;
|
|
}
|
|
if (W_CMemUsed_note < O_CMemUsed_note) {
|
|
/* uses too much memory for compression for too little benefit */
|
|
if (W_ratio > O_ratio)
|
|
DISPLAY ("Compression Memory : %5.3f @ %4.1f MB vs %5.3f @ %4.1f MB : not enough for level %i\n",
|
|
W_ratio, (double)(W_CMemUsed) / 1024 / 1024,
|
|
O_ratio, (double)(O_CMemUsed) / 1024 / 1024, cLevel);
|
|
continue;
|
|
}
|
|
if (W_CSpeed_note < O_CSpeed_note ) {
|
|
/* too large compression speed difference for the compression benefit */
|
|
if (W_ratio > O_ratio)
|
|
DISPLAY ("Compression Speed : %5.3f @ %4.1f MB/s vs %5.3f @ %4.1f MB/s : not enough for level %i\n",
|
|
W_ratio, testResult.cSpeed / 1000000,
|
|
O_ratio, winners[cLevel].result.cSpeed / 1000000., cLevel);
|
|
continue;
|
|
}
|
|
if (W_DSpeed_note < O_DSpeed_note ) {
|
|
/* too large decompression speed difference for the compression benefit */
|
|
if (W_ratio > O_ratio)
|
|
DISPLAY ("Decompression Speed : %5.3f @ %4.1f MB/s vs %5.3f @ %4.1f MB/s : not enough for level %i\n",
|
|
W_ratio, testResult.dSpeed / 1000000.,
|
|
O_ratio, winners[cLevel].result.dSpeed / 1000000., cLevel);
|
|
continue;
|
|
}
|
|
|
|
if (W_ratio < O_ratio)
|
|
DISPLAY("Solution %4.3f selected over %4.3f at level %i, due to better secondary statistics \n", W_ratio, O_ratio, cLevel);
|
|
|
|
winners[cLevel].result = testResult;
|
|
winners[cLevel].params = params;
|
|
BMK_printWinner(stdout, cLevel, testResult, params, srcSize);
|
|
|
|
better = 1;
|
|
} }
|
|
|
|
return better;
|
|
}
|
|
|
|
|
|
/* nullified useless params, to ensure count stats */
|
|
static ZSTD_compressionParameters* sanitizeParams(ZSTD_compressionParameters params)
|
|
{
|
|
g_params = params;
|
|
if (params.strategy == ZSTD_fast)
|
|
g_params.chainLog = 0, g_params.searchLog = 0;
|
|
if (params.strategy == ZSTD_dfast)
|
|
g_params.searchLog = 0;
|
|
if (params.strategy != ZSTD_btopt )
|
|
g_params.targetLength = 0;
|
|
return &g_params;
|
|
}
|
|
|
|
|
|
static void paramVariation(ZSTD_compressionParameters* ptr)
|
|
{
|
|
ZSTD_compressionParameters p;
|
|
U32 validated = 0;
|
|
while (!validated) {
|
|
U32 nbChanges = (FUZ_rand(&g_rand) & 3) + 1;
|
|
p = *ptr;
|
|
for ( ; nbChanges ; nbChanges--) {
|
|
const U32 changeID = FUZ_rand(&g_rand) % 14;
|
|
switch(changeID)
|
|
{
|
|
case 0:
|
|
p.chainLog++; break;
|
|
case 1:
|
|
p.chainLog--; break;
|
|
case 2:
|
|
p.hashLog++; break;
|
|
case 3:
|
|
p.hashLog--; break;
|
|
case 4:
|
|
p.searchLog++; break;
|
|
case 5:
|
|
p.searchLog--; break;
|
|
case 6:
|
|
p.windowLog++; break;
|
|
case 7:
|
|
p.windowLog--; break;
|
|
case 8:
|
|
p.searchLength++; break;
|
|
case 9:
|
|
p.searchLength--; break;
|
|
case 10:
|
|
p.strategy = (ZSTD_strategy)(((U32)p.strategy)+1); break;
|
|
case 11:
|
|
p.strategy = (ZSTD_strategy)(((U32)p.strategy)-1); break;
|
|
case 12:
|
|
p.targetLength *= 1 + ((double)(FUZ_rand(&g_rand)&255)) / 256.; break;
|
|
case 13:
|
|
p.targetLength /= 1 + ((double)(FUZ_rand(&g_rand)&255)) / 256.; break;
|
|
}
|
|
}
|
|
validated = !ZSTD_isError(ZSTD_checkCParams(p));
|
|
}
|
|
*ptr = p;
|
|
}
|
|
|
|
|
|
#define PARAMTABLELOG 25
|
|
#define PARAMTABLESIZE (1<<PARAMTABLELOG)
|
|
#define PARAMTABLEMASK (PARAMTABLESIZE-1)
|
|
static BYTE g_alreadyTested[PARAMTABLESIZE] = {0}; /* init to zero */
|
|
|
|
#define NB_TESTS_PLAYED(p) \
|
|
g_alreadyTested[(XXH64(sanitizeParams(p), sizeof(p), 0) >> 3) & PARAMTABLEMASK]
|
|
|
|
|
|
#define MAX(a,b) ( (a) > (b) ? (a) : (b) )
|
|
|
|
static void playAround(FILE* f, winnerInfo_t* winners,
|
|
ZSTD_compressionParameters params,
|
|
const void* srcBuffer, size_t srcSize,
|
|
ZSTD_CCtx* ctx)
|
|
{
|
|
int nbVariations = 0;
|
|
clock_t const clockStart = clock();
|
|
|
|
while (BMK_clockSpan(clockStart) < g_maxVariationTime) {
|
|
ZSTD_compressionParameters p = params;
|
|
|
|
if (nbVariations++ > g_maxNbVariations) break;
|
|
paramVariation(&p);
|
|
|
|
/* exclude faster if already played params */
|
|
if (FUZ_rand(&g_rand) & ((1 << NB_TESTS_PLAYED(p))-1))
|
|
continue;
|
|
|
|
/* test */
|
|
NB_TESTS_PLAYED(p)++;
|
|
if (!BMK_seed(winners, p, srcBuffer, srcSize, ctx)) continue;
|
|
|
|
/* improvement found => search more */
|
|
BMK_printWinners(f, winners, srcSize);
|
|
playAround(f, winners, p, srcBuffer, srcSize, ctx);
|
|
}
|
|
|
|
}
|
|
|
|
|
|
static ZSTD_compressionParameters randomParams(void)
|
|
{
|
|
ZSTD_compressionParameters p;
|
|
U32 validated = 0;
|
|
while (!validated) {
|
|
/* totally random entry */
|
|
p.chainLog = FUZ_rand(&g_rand) % (ZSTD_CHAINLOG_MAX+1 - ZSTD_CHAINLOG_MIN) + ZSTD_CHAINLOG_MIN;
|
|
p.hashLog = FUZ_rand(&g_rand) % (ZSTD_HASHLOG_MAX+1 - ZSTD_HASHLOG_MIN) + ZSTD_HASHLOG_MIN;
|
|
p.searchLog = FUZ_rand(&g_rand) % (ZSTD_SEARCHLOG_MAX+1 - ZSTD_SEARCHLOG_MIN) + ZSTD_SEARCHLOG_MIN;
|
|
p.windowLog = FUZ_rand(&g_rand) % (ZSTD_WINDOWLOG_MAX+1 - ZSTD_WINDOWLOG_MIN) + ZSTD_WINDOWLOG_MIN;
|
|
p.searchLength=FUZ_rand(&g_rand) % (ZSTD_SEARCHLENGTH_MAX+1 - ZSTD_SEARCHLENGTH_MIN) + ZSTD_SEARCHLENGTH_MIN;
|
|
p.targetLength=FUZ_rand(&g_rand) % (ZSTD_TARGETLENGTH_MAX+1 - ZSTD_TARGETLENGTH_MIN) + ZSTD_TARGETLENGTH_MIN;
|
|
p.strategy = (ZSTD_strategy) (FUZ_rand(&g_rand) % (ZSTD_btopt +1));
|
|
validated = !ZSTD_isError(ZSTD_checkCParams(p));
|
|
}
|
|
return p;
|
|
}
|
|
|
|
static void BMK_selectRandomStart(
|
|
FILE* f, winnerInfo_t* winners,
|
|
const void* srcBuffer, size_t srcSize,
|
|
ZSTD_CCtx* ctx)
|
|
{
|
|
U32 const id = (FUZ_rand(&g_rand) % (ZSTD_maxCLevel()+1));
|
|
if ((id==0) || (winners[id].params.windowLog==0)) {
|
|
/* totally random entry */
|
|
ZSTD_compressionParameters const p = ZSTD_adjustCParams(randomParams(), srcSize, 0);
|
|
playAround(f, winners, p, srcBuffer, srcSize, ctx);
|
|
}
|
|
else
|
|
playAround(f, winners, winners[id].params, srcBuffer, srcSize, ctx);
|
|
}
|
|
|
|
|
|
static void BMK_benchMem(void* srcBuffer, size_t srcSize)
|
|
{
|
|
ZSTD_CCtx* const ctx = ZSTD_createCCtx();
|
|
ZSTD_compressionParameters params;
|
|
winnerInfo_t winners[NB_LEVELS_TRACKED];
|
|
const char* const rfName = "grillResults.txt";
|
|
FILE* const f = fopen(rfName, "w");
|
|
const size_t blockSize = g_blockSize ? g_blockSize : srcSize;
|
|
|
|
/* init */
|
|
if (ctx==NULL) { DISPLAY("ZSTD_createCCtx() failed \n"); exit(1); }
|
|
memset(winners, 0, sizeof(winners));
|
|
if (f==NULL) { DISPLAY("error opening %s \n", rfName); exit(1); }
|
|
|
|
if (g_singleRun) {
|
|
BMK_result_t testResult;
|
|
g_params = ZSTD_adjustCParams(g_params, srcSize, 0);
|
|
BMK_benchParam(&testResult, srcBuffer, srcSize, ctx, g_params);
|
|
DISPLAY("\n");
|
|
return;
|
|
}
|
|
|
|
if (g_target)
|
|
g_cSpeedTarget[1] = g_target * 1000000;
|
|
else {
|
|
/* baseline config for level 1 */
|
|
BMK_result_t testResult;
|
|
params = ZSTD_getCParams(1, blockSize, 0);
|
|
BMK_benchParam(&testResult, srcBuffer, srcSize, ctx, params);
|
|
g_cSpeedTarget[1] = (testResult.cSpeed * 31) / 32;
|
|
}
|
|
|
|
/* establish speed objectives (relative to level 1) */
|
|
{ int i;
|
|
for (i=2; i<=ZSTD_maxCLevel(); i++)
|
|
g_cSpeedTarget[i] = (g_cSpeedTarget[i-1] * 25) / 32;
|
|
}
|
|
|
|
/* populate initial solution */
|
|
{ const int maxSeeds = g_noSeed ? 1 : ZSTD_maxCLevel();
|
|
int i;
|
|
for (i=0; i<=maxSeeds; i++) {
|
|
params = ZSTD_getCParams(i, blockSize, 0);
|
|
BMK_seed(winners, params, srcBuffer, srcSize, ctx);
|
|
} }
|
|
BMK_printWinners(f, winners, srcSize);
|
|
|
|
/* start tests */
|
|
{ const time_t grillStart = time(NULL);
|
|
do {
|
|
BMK_selectRandomStart(f, winners, srcBuffer, srcSize, ctx);
|
|
} while (BMK_timeSpan(grillStart) < g_grillDuration_s);
|
|
}
|
|
|
|
/* end summary */
|
|
BMK_printWinners(f, winners, srcSize);
|
|
DISPLAY("grillParams operations completed \n");
|
|
|
|
/* clean up*/
|
|
fclose(f);
|
|
ZSTD_freeCCtx(ctx);
|
|
}
|
|
|
|
|
|
static int benchSample(void)
|
|
{
|
|
void* origBuff;
|
|
size_t const benchedSize = sampleSize;
|
|
const char* const name = "Sample 10MiB";
|
|
|
|
/* Allocation */
|
|
origBuff = malloc(benchedSize);
|
|
if (!origBuff) { DISPLAY("\nError: not enough memory!\n"); return 12; }
|
|
|
|
/* Fill buffer */
|
|
RDG_genBuffer(origBuff, benchedSize, g_compressibility, 0.0, 0);
|
|
|
|
/* bench */
|
|
DISPLAY("\r%79s\r", "");
|
|
DISPLAY("using %s %i%%: \n", name, (int)(g_compressibility*100));
|
|
BMK_benchMem(origBuff, benchedSize);
|
|
|
|
free(origBuff);
|
|
return 0;
|
|
}
|
|
|
|
|
|
int benchFiles(const char** fileNamesTable, int nbFiles)
|
|
{
|
|
int fileIdx=0;
|
|
|
|
/* Loop for each file */
|
|
while (fileIdx<nbFiles) {
|
|
const char* const inFileName = fileNamesTable[fileIdx++];
|
|
FILE* const inFile = fopen( inFileName, "rb" );
|
|
U64 const inFileSize = UTIL_getFileSize(inFileName);
|
|
size_t benchedSize;
|
|
void* origBuff;
|
|
|
|
/* Check file existence */
|
|
if (inFile==NULL) {
|
|
DISPLAY( "Pb opening %s\n", inFileName);
|
|
return 11;
|
|
}
|
|
|
|
/* Memory allocation */
|
|
benchedSize = BMK_findMaxMem(inFileSize*3) / 3;
|
|
if ((U64)benchedSize > inFileSize) benchedSize = (size_t)inFileSize;
|
|
if (benchedSize < inFileSize)
|
|
DISPLAY("Not enough memory for '%s' full size; testing %i MB only...\n", inFileName, (int)(benchedSize>>20));
|
|
origBuff = malloc(benchedSize);
|
|
if (origBuff==NULL) {
|
|
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%79s\r", "");
|
|
DISPLAY("using %s : \n", inFileName);
|
|
BMK_benchMem(origBuff, benchedSize);
|
|
|
|
/* clean */
|
|
free(origBuff);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
int optimizeForSize(const char* inFileName, U32 targetSpeed)
|
|
{
|
|
FILE* const inFile = fopen( inFileName, "rb" );
|
|
U64 const inFileSize = UTIL_getFileSize(inFileName);
|
|
size_t benchedSize = BMK_findMaxMem(inFileSize*3) / 3;
|
|
void* origBuff;
|
|
|
|
/* Init */
|
|
if (inFile==NULL) { DISPLAY( "Pb opening %s\n", inFileName); return 11; }
|
|
|
|
/* Memory allocation & restrictions */
|
|
if ((U64)benchedSize > inFileSize) benchedSize = (size_t)inFileSize;
|
|
if (benchedSize < inFileSize)
|
|
DISPLAY("Not enough memory for '%s' full size; testing %i MB only...\n", inFileName, (int)(benchedSize>>20));
|
|
|
|
/* Alloc */
|
|
origBuff = 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%79s\r", "");
|
|
DISPLAY("optimizing for %s - limit speed %u MB/s \n", inFileName, targetSpeed);
|
|
targetSpeed *= 1000;
|
|
|
|
{ ZSTD_CCtx* const ctx = ZSTD_createCCtx();
|
|
ZSTD_compressionParameters params;
|
|
winnerInfo_t winner;
|
|
BMK_result_t candidate;
|
|
const size_t blockSize = g_blockSize ? g_blockSize : benchedSize;
|
|
|
|
/* init */
|
|
if (ctx==NULL) { DISPLAY("\n ZSTD_createCCtx error \n"); free(origBuff); return 14;}
|
|
memset(&winner, 0, sizeof(winner));
|
|
winner.result.cSize = (size_t)(-1);
|
|
|
|
/* find best solution from default params */
|
|
{ const int maxSeeds = g_noSeed ? 1 : ZSTD_maxCLevel();
|
|
int i;
|
|
for (i=1; i<=maxSeeds; i++) {
|
|
params = ZSTD_getCParams(i, blockSize, 0);
|
|
BMK_benchParam(&candidate, origBuff, benchedSize, ctx, params);
|
|
if (candidate.cSpeed < targetSpeed)
|
|
break;
|
|
if ( (candidate.cSize < winner.result.cSize)
|
|
| ((candidate.cSize == winner.result.cSize) & (candidate.cSpeed > winner.result.cSpeed)) )
|
|
{
|
|
winner.params = params;
|
|
winner.result = candidate;
|
|
BMK_printWinner(stdout, i, winner.result, winner.params, benchedSize);
|
|
} }
|
|
}
|
|
BMK_printWinner(stdout, 99, winner.result, winner.params, benchedSize);
|
|
|
|
/* start tests */
|
|
{ time_t const grillStart = time(NULL);
|
|
do {
|
|
params = winner.params;
|
|
paramVariation(¶ms);
|
|
if ((FUZ_rand(&g_rand) & 15) == 3) params = randomParams();
|
|
|
|
/* exclude faster if already played set of params */
|
|
if (FUZ_rand(&g_rand) & ((1 << NB_TESTS_PLAYED(params))-1)) continue;
|
|
|
|
/* test */
|
|
NB_TESTS_PLAYED(params)++;
|
|
BMK_benchParam(&candidate, origBuff, benchedSize, ctx, params);
|
|
|
|
/* improvement found => new winner */
|
|
if ( (candidate.cSpeed > targetSpeed)
|
|
& ( (candidate.cSize < winner.result.cSize)
|
|
| ((candidate.cSize == winner.result.cSize) & (candidate.cSpeed > winner.result.cSpeed)) ) )
|
|
{
|
|
winner.params = params;
|
|
winner.result = candidate;
|
|
BMK_printWinner(stdout, 99, winner.result, winner.params, benchedSize);
|
|
}
|
|
} while (BMK_timeSpan(grillStart) < g_grillDuration_s);
|
|
}
|
|
|
|
/* end summary */
|
|
BMK_printWinner(stdout, 99, winner.result, winner.params, benchedSize);
|
|
DISPLAY("grillParams size - optimizer completed \n");
|
|
|
|
/* clean up*/
|
|
ZSTD_freeCCtx(ctx);
|
|
}
|
|
|
|
free(origBuff);
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int usage(const char* exename)
|
|
{
|
|
DISPLAY( "Usage :\n");
|
|
DISPLAY( " %s [arg] file\n", exename);
|
|
DISPLAY( "Arguments :\n");
|
|
DISPLAY( " file : path to the file used as reference (if none, generates a compressible sample)\n");
|
|
DISPLAY( " -H/-h : Help (this text + advanced options)\n");
|
|
return 0;
|
|
}
|
|
|
|
static int usage_advanced(void)
|
|
{
|
|
DISPLAY( "\nAdvanced options :\n");
|
|
DISPLAY( " -T# : set level 1 speed objective \n");
|
|
DISPLAY( " -B# : cut input into blocks of size # (default : single block) \n");
|
|
DISPLAY( " -i# : iteration loops [1-9](default : %i) \n", NBLOOPS);
|
|
DISPLAY( " -O# : find Optimized parameters for # target speed (default : 0) \n");
|
|
DISPLAY( " -S : Single run \n");
|
|
DISPLAY( " -P# : generated 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=0;
|
|
U32 optimizer = 0;
|
|
U32 main_pause = 0;
|
|
U32 targetSpeed = 0;
|
|
|
|
/* checks */
|
|
if (NB_LEVELS_TRACKED <= ZSTD_maxCLevel()) {
|
|
DISPLAY("Error : NB_LEVELS_TRACKED <= ZSTD_maxCLevel() \n");
|
|
exit(1);
|
|
}
|
|
|
|
/* Welcome message */
|
|
DISPLAY(WELCOME_MESSAGE);
|
|
|
|
if (argc<1) { badusage(exename); return 1; }
|
|
|
|
for(i=1; i<argc; i++) {
|
|
const char* argument = argv[i];
|
|
|
|
if(!argument) continue; /* Protection if argument empty */
|
|
|
|
if(!strcmp(argument,"--no-seed")) { g_noSeed = 1; continue; }
|
|
|
|
/* Decode command (note : aggregated commands are allowed) */
|
|
if (argument[0]=='-') {
|
|
argument++;
|
|
|
|
while (argument[0]!=0) {
|
|
|
|
switch(argument[0])
|
|
{
|
|
/* Display help on usage */
|
|
case 'h' :
|
|
case 'H': usage(exename); usage_advanced(); return 0;
|
|
|
|
/* Pause at the end (hidden option) */
|
|
case 'p': main_pause = 1; argument++; break;
|
|
|
|
/* Modify Nb Iterations */
|
|
case 'i':
|
|
argument++;
|
|
if ((argument[0] >='0') & (argument[0] <='9'))
|
|
g_nbIterations = *argument++ - '0';
|
|
break;
|
|
|
|
/* Sample compressibility (when no file provided) */
|
|
case 'P':
|
|
argument++;
|
|
{ U32 proba32 = 0;
|
|
while ((argument[0]>= '0') & (argument[0]<= '9'))
|
|
proba32 = (proba32*10) + (*argument++ - '0');
|
|
g_compressibility = (double)proba32 / 100.;
|
|
}
|
|
break;
|
|
|
|
case 'O':
|
|
argument++;
|
|
optimizer=1;
|
|
targetSpeed = 0;
|
|
while ((*argument >= '0') & (*argument <= '9'))
|
|
targetSpeed = (targetSpeed*10) + (*argument++ - '0');
|
|
break;
|
|
|
|
/* Run Single conf */
|
|
case 'S':
|
|
g_singleRun = 1;
|
|
argument++;
|
|
g_params = ZSTD_getCParams(2, g_blockSize, 0);
|
|
for ( ; ; ) {
|
|
switch(*argument)
|
|
{
|
|
case 'w':
|
|
g_params.windowLog = 0;
|
|
argument++;
|
|
while ((*argument>= '0') && (*argument<='9'))
|
|
g_params.windowLog *= 10, g_params.windowLog += *argument++ - '0';
|
|
continue;
|
|
case 'c':
|
|
g_params.chainLog = 0;
|
|
argument++;
|
|
while ((*argument>= '0') && (*argument<='9'))
|
|
g_params.chainLog *= 10, g_params.chainLog += *argument++ - '0';
|
|
continue;
|
|
case 'h':
|
|
g_params.hashLog = 0;
|
|
argument++;
|
|
while ((*argument>= '0') && (*argument<='9'))
|
|
g_params.hashLog *= 10, g_params.hashLog += *argument++ - '0';
|
|
continue;
|
|
case 's':
|
|
g_params.searchLog = 0;
|
|
argument++;
|
|
while ((*argument>= '0') && (*argument<='9'))
|
|
g_params.searchLog *= 10, g_params.searchLog += *argument++ - '0';
|
|
continue;
|
|
case 'l': /* search length */
|
|
g_params.searchLength = 0;
|
|
argument++;
|
|
while ((*argument>= '0') && (*argument<='9'))
|
|
g_params.searchLength *= 10, g_params.searchLength += *argument++ - '0';
|
|
continue;
|
|
case 't': /* target length */
|
|
g_params.targetLength = 0;
|
|
argument++;
|
|
while ((*argument>= '0') && (*argument<='9'))
|
|
g_params.targetLength *= 10, g_params.targetLength += *argument++ - '0';
|
|
continue;
|
|
case 'S': /* strategy */
|
|
argument++;
|
|
while ((*argument>= '0') && (*argument<='9'))
|
|
g_params.strategy = (ZSTD_strategy)(*argument++ - '0');
|
|
continue;
|
|
case 'L':
|
|
{ int cLevel = 0;
|
|
argument++;
|
|
while ((*argument>= '0') && (*argument<='9'))
|
|
cLevel *= 10, cLevel += *argument++ - '0';
|
|
g_params = ZSTD_getCParams(cLevel, g_blockSize, 0);
|
|
continue;
|
|
}
|
|
default : ;
|
|
}
|
|
break;
|
|
}
|
|
break;
|
|
|
|
/* target level1 speed objective, in MB/s */
|
|
case 'T':
|
|
argument++;
|
|
g_target = 0;
|
|
while ((*argument >= '0') && (*argument <= '9'))
|
|
g_target = (g_target*10) + (*argument++ - '0');
|
|
break;
|
|
|
|
/* cut input into blocks */
|
|
case 'B':
|
|
g_blockSize = 0;
|
|
argument++;
|
|
while ((*argument >='0') & (*argument <='9'))
|
|
g_blockSize = (g_blockSize*10) + (*argument++ - '0');
|
|
if (*argument=='K') g_blockSize<<=10, argument++; /* allows using KB notation */
|
|
if (*argument=='M') g_blockSize<<=20, argument++;
|
|
if (*argument=='B') argument++;
|
|
DISPLAY("using %u KB block size \n", g_blockSize>>10);
|
|
break;
|
|
|
|
/* Unknown command */
|
|
default : return badusage(exename);
|
|
}
|
|
}
|
|
continue;
|
|
} /* if (argument[0]=='-') */
|
|
|
|
/* first provided filename is input */
|
|
if (!input_filename) { input_filename=argument; filenamesStart=i; continue; }
|
|
}
|
|
|
|
if (filenamesStart==0)
|
|
result = benchSample();
|
|
else {
|
|
if (optimizer)
|
|
result = optimizeForSize(input_filename, targetSpeed);
|
|
else
|
|
result = benchFiles(argv+filenamesStart, argc-filenamesStart);
|
|
}
|
|
|
|
if (main_pause) { int unused; printf("press enter...\n"); unused = getchar(); (void)unused; }
|
|
|
|
return result;
|
|
}
|