542c9dfcf8
ZSTD_frameParams => ZSTD_frameHeader ZSTD_getFrameParams() -> ZSTD_getFrameHeader() The new naming is more distinctive from ZSTD_frameParameters, which is used during compression. ZSTD_frameHeader is clearer in its intention to described frame header content. It also implies we are decoding a ZSTD frame, hence we are at decoding stage.
572 lines
19 KiB
C
572 lines
19 KiB
C
/**
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* Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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/*_************************************
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* Includes
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**************************************/
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#include "util.h" /* Compiler options, UTIL_GetFileSize */
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#include <stdlib.h> /* malloc */
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#include <stdio.h> /* fprintf, fopen, ftello64 */
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#include <time.h> /* clock_t, clock, CLOCKS_PER_SEC */
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#include "mem.h"
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#ifndef ZSTD_DLL_IMPORT
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#include "zstd_internal.h" /* ZSTD_blockHeaderSize, blockType_e, KB, MB */
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#define ZSTD_STATIC_LINKING_ONLY /* ZSTD_compressBegin, ZSTD_compressContinue, etc. */
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#else
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#define KB *(1 <<10)
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#define MB *(1 <<20)
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#define GB *(1U<<30)
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typedef enum { bt_raw, bt_rle, bt_compressed, bt_reserved } blockType_e;
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#endif
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#include "zstd.h" /* ZSTD_VERSION_STRING */
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#include "datagen.h"
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/*_************************************
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* Constants
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**************************************/
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#define PROGRAM_DESCRIPTION "Zstandard speed analyzer"
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#define AUTHOR "Yann Collet"
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#define WELCOME_MESSAGE "*** %s %s %i-bits, by %s (%s) ***\n", PROGRAM_DESCRIPTION, ZSTD_VERSION_STRING, (int)(sizeof(void*)*8), AUTHOR, __DATE__
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#define NBLOOPS 6
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#define TIMELOOP_S 2
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#define KNUTH 2654435761U
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#define MAX_MEM (1984 MB)
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#define COMPRESSIBILITY_DEFAULT 0.50
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static const size_t g_sampleSize = 10000000;
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/*_************************************
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* Macros
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**************************************/
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#define DISPLAY(...) fprintf(stderr, __VA_ARGS__)
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/*_************************************
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* Benchmark Parameters
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**************************************/
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static U32 g_nbIterations = NBLOOPS;
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static double g_compressibility = COMPRESSIBILITY_DEFAULT;
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static void BMK_SetNbIterations(U32 nbLoops)
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{
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g_nbIterations = nbLoops;
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DISPLAY("- %i iterations -\n", g_nbIterations);
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}
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/*_*******************************************************
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* Private functions
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*********************************************************/
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static clock_t BMK_clockSpan( clock_t clockStart )
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{
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return clock() - clockStart; /* works even if overflow, span limited to <= ~30mn */
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}
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static size_t BMK_findMaxMem(U64 requiredMem)
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{
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size_t const step = 64 MB;
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void* testmem = NULL;
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requiredMem = (((requiredMem >> 26) + 1) << 26);
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if (requiredMem > MAX_MEM) requiredMem = MAX_MEM;
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requiredMem += step;
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do {
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testmem = malloc ((size_t)requiredMem);
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requiredMem -= step;
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} while (!testmem);
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free (testmem);
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return (size_t) requiredMem;
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}
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/*_*******************************************************
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* Benchmark wrappers
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*********************************************************/
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typedef struct {
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blockType_e blockType;
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U32 unusedBits;
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U32 origSize;
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} blockProperties_t;
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size_t local_ZSTD_compress(void* dst, size_t dstSize, void* buff2, const void* src, size_t srcSize)
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{
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(void)buff2;
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return ZSTD_compress(dst, dstSize, src, srcSize, 1);
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}
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static size_t g_cSize = 0;
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size_t local_ZSTD_decompress(void* dst, size_t dstSize, void* buff2, const void* src, size_t srcSize)
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{
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(void)src; (void)srcSize;
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return ZSTD_decompress(dst, dstSize, buff2, g_cSize);
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}
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#ifndef ZSTD_DLL_IMPORT
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static ZSTD_DCtx* g_zdc = NULL;
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extern size_t ZSTD_decodeLiteralsBlock(ZSTD_DCtx* ctx, const void* src, size_t srcSize);
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size_t local_ZSTD_decodeLiteralsBlock(void* dst, size_t dstSize, void* buff2, const void* src, size_t srcSize)
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{
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(void)src; (void)srcSize; (void)dst; (void)dstSize;
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return ZSTD_decodeLiteralsBlock((ZSTD_DCtx*)g_zdc, buff2, g_cSize);
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}
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extern size_t ZSTD_getcBlockSize(const void* src, size_t srcSize, blockProperties_t* bpPtr);
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extern size_t ZSTD_decodeSeqHeaders(ZSTD_DCtx* dctx, int* nbSeq, const void* src, size_t srcSize);
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size_t local_ZSTD_decodeSeqHeaders(void* dst, size_t dstSize, void* buff2, const void* src, size_t srcSize)
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{
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int nbSeq;
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(void)src; (void)srcSize; (void)dst; (void)dstSize;
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return ZSTD_decodeSeqHeaders(g_zdc, &nbSeq, buff2, g_cSize);
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}
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#endif
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static ZSTD_CStream* g_cstream= NULL;
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size_t local_ZSTD_compressStream(void* dst, size_t dstCapacity, void* buff2, const void* src, size_t srcSize)
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{
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ZSTD_outBuffer buffOut;
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ZSTD_inBuffer buffIn;
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(void)buff2;
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ZSTD_initCStream(g_cstream, 1);
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buffOut.dst = dst;
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buffOut.size = dstCapacity;
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buffOut.pos = 0;
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buffIn.src = src;
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buffIn.size = srcSize;
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buffIn.pos = 0;
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ZSTD_compressStream(g_cstream, &buffOut, &buffIn);
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ZSTD_endStream(g_cstream, &buffOut);
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return buffOut.pos;
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}
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static ZSTD_DStream* g_dstream= NULL;
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static size_t local_ZSTD_decompressStream(void* dst, size_t dstCapacity, void* buff2, const void* src, size_t srcSize)
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{
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ZSTD_outBuffer buffOut;
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ZSTD_inBuffer buffIn;
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(void)src; (void)srcSize;
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ZSTD_initDStream(g_dstream);
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buffOut.dst = dst;
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buffOut.size = dstCapacity;
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buffOut.pos = 0;
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buffIn.src = buff2;
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buffIn.size = g_cSize;
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buffIn.pos = 0;
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ZSTD_decompressStream(g_dstream, &buffOut, &buffIn);
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return buffOut.pos;
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}
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#ifndef ZSTD_DLL_IMPORT
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static ZSTD_CCtx* g_zcc = NULL;
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size_t local_ZSTD_compressContinue(void* dst, size_t dstCapacity, void* buff2, const void* src, size_t srcSize)
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{
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(void)buff2;
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ZSTD_compressBegin(g_zcc, 1);
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return ZSTD_compressEnd(g_zcc, dst, dstCapacity, src, srcSize);
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}
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#define FIRST_BLOCK_SIZE 8
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size_t local_ZSTD_compressContinue_extDict(void* dst, size_t dstCapacity, void* buff2, const void* src, size_t srcSize)
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{
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BYTE firstBlockBuf[FIRST_BLOCK_SIZE];
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(void)buff2;
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memcpy(firstBlockBuf, src, FIRST_BLOCK_SIZE);
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ZSTD_compressBegin(g_zcc, 1);
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{ size_t const compressResult = ZSTD_compressContinue(g_zcc, dst, dstCapacity, firstBlockBuf, FIRST_BLOCK_SIZE);
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if (ZSTD_isError(compressResult)) { DISPLAY("local_ZSTD_compressContinue_extDict error : %s\n", ZSTD_getErrorName(compressResult)); return compressResult; }
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dst = (BYTE*)dst + compressResult;
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dstCapacity -= compressResult;
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}
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return ZSTD_compressEnd(g_zcc, dst, dstCapacity, (const BYTE*)src + FIRST_BLOCK_SIZE, srcSize - FIRST_BLOCK_SIZE);
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}
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size_t local_ZSTD_decompressContinue(void* dst, size_t dstCapacity, void* buff2, const void* src, size_t srcSize)
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{
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size_t regeneratedSize = 0;
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const BYTE* ip = (const BYTE*)buff2;
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const BYTE* const iend = ip + g_cSize;
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BYTE* op = (BYTE*)dst;
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size_t remainingCapacity = dstCapacity;
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(void)src; (void)srcSize;
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ZSTD_decompressBegin(g_zdc);
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while (ip < iend) {
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size_t const iSize = ZSTD_nextSrcSizeToDecompress(g_zdc);
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size_t const decodedSize = ZSTD_decompressContinue(g_zdc, op, remainingCapacity, ip, iSize);
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ip += iSize;
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regeneratedSize += decodedSize;
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op += decodedSize;
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remainingCapacity -= decodedSize;
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}
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return regeneratedSize;
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}
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#endif
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/*_*******************************************************
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* Bench functions
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*********************************************************/
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static size_t benchMem(const void* src, size_t srcSize, U32 benchNb)
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{
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BYTE* dstBuff;
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size_t const dstBuffSize = ZSTD_compressBound(srcSize);
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void* buff2;
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const char* benchName;
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size_t (*benchFunction)(void* dst, size_t dstSize, void* verifBuff, const void* src, size_t srcSize);
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double bestTime = 100000000.;
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/* Selection */
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switch(benchNb)
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{
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case 1:
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benchFunction = local_ZSTD_compress; benchName = "ZSTD_compress";
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break;
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case 2:
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benchFunction = local_ZSTD_decompress; benchName = "ZSTD_decompress";
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break;
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#ifndef ZSTD_DLL_IMPORT
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case 11:
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benchFunction = local_ZSTD_compressContinue; benchName = "ZSTD_compressContinue";
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break;
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case 12:
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benchFunction = local_ZSTD_compressContinue_extDict; benchName = "ZSTD_compressContinue_extDict";
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break;
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case 13:
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benchFunction = local_ZSTD_decompressContinue; benchName = "ZSTD_decompressContinue";
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break;
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case 31:
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benchFunction = local_ZSTD_decodeLiteralsBlock; benchName = "ZSTD_decodeLiteralsBlock";
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break;
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case 32:
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benchFunction = local_ZSTD_decodeSeqHeaders; benchName = "ZSTD_decodeSeqHeaders";
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break;
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#endif
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case 41:
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benchFunction = local_ZSTD_compressStream; benchName = "ZSTD_compressStream";
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break;
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case 42:
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benchFunction = local_ZSTD_decompressStream; benchName = "ZSTD_decompressStream";
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break;
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default :
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return 0;
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}
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/* Allocation */
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dstBuff = (BYTE*)malloc(dstBuffSize);
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buff2 = malloc(dstBuffSize);
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if ((!dstBuff) || (!buff2)) {
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DISPLAY("\nError: not enough memory!\n");
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free(dstBuff); free(buff2);
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return 12;
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}
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/* Preparation */
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switch(benchNb)
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{
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case 2:
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g_cSize = ZSTD_compress(buff2, dstBuffSize, src, srcSize, 1);
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break;
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#ifndef ZSTD_DLL_IMPORT
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case 11 :
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if (g_zcc==NULL) g_zcc = ZSTD_createCCtx();
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break;
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case 12 :
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if (g_zcc==NULL) g_zcc = ZSTD_createCCtx();
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break;
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case 13 :
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if (g_zdc==NULL) g_zdc = ZSTD_createDCtx();
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g_cSize = ZSTD_compress(buff2, dstBuffSize, src, srcSize, 1);
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break;
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case 31: /* ZSTD_decodeLiteralsBlock */
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if (g_zdc==NULL) g_zdc = ZSTD_createDCtx();
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{ blockProperties_t bp;
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ZSTD_frameHeader zfp;
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size_t frameHeaderSize, skippedSize;
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g_cSize = ZSTD_compress(dstBuff, dstBuffSize, src, srcSize, 1);
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frameHeaderSize = ZSTD_getFrameHeader(&zfp, dstBuff, ZSTD_frameHeaderSize_min);
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if (frameHeaderSize==0) frameHeaderSize = ZSTD_frameHeaderSize_min;
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ZSTD_getcBlockSize(dstBuff+frameHeaderSize, dstBuffSize, &bp); /* Get 1st block type */
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if (bp.blockType != bt_compressed) {
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DISPLAY("ZSTD_decodeLiteralsBlock : impossible to test on this sample (not compressible)\n");
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goto _cleanOut;
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}
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skippedSize = frameHeaderSize + ZSTD_blockHeaderSize;
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memcpy(buff2, dstBuff+skippedSize, g_cSize-skippedSize);
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srcSize = srcSize > 128 KB ? 128 KB : srcSize; /* speed relative to block */
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break;
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}
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case 32: /* ZSTD_decodeSeqHeaders */
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if (g_zdc==NULL) g_zdc = ZSTD_createDCtx();
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{ blockProperties_t bp;
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ZSTD_frameHeader zfp;
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const BYTE* ip = dstBuff;
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const BYTE* iend;
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size_t frameHeaderSize, cBlockSize;
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ZSTD_compress(dstBuff, dstBuffSize, src, srcSize, 1); /* it would be better to use direct block compression here */
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g_cSize = ZSTD_compress(dstBuff, dstBuffSize, src, srcSize, 1);
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frameHeaderSize = ZSTD_getFrameHeader(&zfp, dstBuff, ZSTD_frameHeaderSize_min);
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if (frameHeaderSize==0) frameHeaderSize = ZSTD_frameHeaderSize_min;
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ip += frameHeaderSize; /* Skip frame Header */
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cBlockSize = ZSTD_getcBlockSize(ip, dstBuffSize, &bp); /* Get 1st block type */
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if (bp.blockType != bt_compressed) {
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DISPLAY("ZSTD_decodeSeqHeaders : impossible to test on this sample (not compressible)\n");
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goto _cleanOut;
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}
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iend = ip + ZSTD_blockHeaderSize + cBlockSize; /* End of first block */
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ip += ZSTD_blockHeaderSize; /* skip block header */
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ZSTD_decompressBegin(g_zdc);
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ip += ZSTD_decodeLiteralsBlock(g_zdc, ip, iend-ip); /* skip literal segment */
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g_cSize = iend-ip;
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memcpy(buff2, ip, g_cSize); /* copy rest of block (it starts by SeqHeader) */
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srcSize = srcSize > 128 KB ? 128 KB : srcSize; /* speed relative to block */
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break;
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}
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#else
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case 31:
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goto _cleanOut;
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#endif
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case 41 :
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if (g_cstream==NULL) g_cstream = ZSTD_createCStream();
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break;
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case 42 :
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if (g_dstream==NULL) g_dstream = ZSTD_createDStream();
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g_cSize = ZSTD_compress(buff2, dstBuffSize, src, srcSize, 1);
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break;
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/* test functions */
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/* by convention, test functions can be added > 100 */
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default : ;
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}
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{ size_t i; for (i=0; i<dstBuffSize; i++) dstBuff[i]=(BYTE)i; } /* warming up memory */
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{ U32 loopNb;
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DISPLAY("%2i- %-30.30s : \r", benchNb, benchName);
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for (loopNb = 1; loopNb <= g_nbIterations; loopNb++) {
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clock_t const timeLoop = TIMELOOP_S * CLOCKS_PER_SEC;
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clock_t clockStart;
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U32 nbRounds;
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size_t benchResult=0;
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double averageTime;
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clockStart = clock();
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while (clock() == clockStart);
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clockStart = clock();
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for (nbRounds=0; BMK_clockSpan(clockStart) < timeLoop; nbRounds++) {
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benchResult = benchFunction(dstBuff, dstBuffSize, buff2, src, srcSize);
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if (ZSTD_isError(benchResult)) { DISPLAY("ERROR ! %s() => %s !! \n", benchName, ZSTD_getErrorName(benchResult)); exit(1); }
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}
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averageTime = (((double)BMK_clockSpan(clockStart)) / CLOCKS_PER_SEC) / nbRounds;
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if (averageTime < bestTime) bestTime = averageTime;
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DISPLAY("%2i- %-30.30s : %7.1f MB/s (%9u)\r", loopNb, benchName, (double)srcSize / (1 MB) / bestTime, (U32)benchResult);
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} }
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DISPLAY("%2u\n", benchNb);
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_cleanOut:
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free(dstBuff);
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free(buff2);
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return 0;
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}
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static int benchSample(U32 benchNb)
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{
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size_t const benchedSize = g_sampleSize;
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const char* name = "Sample 10MiB";
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/* Allocation */
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void* origBuff = malloc(benchedSize);
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if (!origBuff) { DISPLAY("\nError: not enough memory!\n"); return 12; }
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/* Fill buffer */
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RDG_genBuffer(origBuff, benchedSize, g_compressibility, 0.0, 0);
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/* bench */
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DISPLAY("\r%79s\r", "");
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DISPLAY(" %s : \n", name);
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if (benchNb)
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benchMem(origBuff, benchedSize, benchNb);
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else
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for (benchNb=0; benchNb<100; benchNb++) benchMem(origBuff, benchedSize, benchNb);
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free(origBuff);
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return 0;
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}
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static int benchFiles(const char** fileNamesTable, const int nbFiles, U32 benchNb)
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{
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/* Loop for each file */
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int fileIdx;
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for (fileIdx=0; fileIdx<nbFiles; fileIdx++) {
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const char* inFileName = fileNamesTable[fileIdx];
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FILE* inFile = fopen( inFileName, "rb" );
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U64 inFileSize;
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size_t benchedSize;
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void* origBuff;
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/* Check file existence */
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if (inFile==NULL) { DISPLAY( "Pb opening %s\n", inFileName); return 11; }
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/* Memory allocation & restrictions */
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inFileSize = UTIL_getFileSize(inFileName);
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benchedSize = BMK_findMaxMem(inFileSize*3) / 3;
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if ((U64)benchedSize > inFileSize) benchedSize = (size_t)inFileSize;
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if (benchedSize < inFileSize)
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DISPLAY("Not enough memory for '%s' full size; testing %u MB only...\n", inFileName, (U32)(benchedSize>>20));
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/* Alloc */
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origBuff = malloc(benchedSize);
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if (!origBuff) { DISPLAY("\nError: not enough memory!\n"); fclose(inFile); return 12; }
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/* Fill input buffer */
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DISPLAY("Loading %s... \r", inFileName);
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{
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size_t readSize = fread(origBuff, 1, benchedSize, inFile);
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fclose(inFile);
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if (readSize != benchedSize) {
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DISPLAY("\nError: problem reading file '%s' !! \n", inFileName);
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free(origBuff);
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return 13;
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} }
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/* bench */
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DISPLAY("\r%79s\r", "");
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DISPLAY(" %s : \n", inFileName);
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if (benchNb)
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benchMem(origBuff, benchedSize, benchNb);
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else
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for (benchNb=0; benchNb<100; benchNb++) benchMem(origBuff, benchedSize, benchNb);
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free(origBuff);
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}
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return 0;
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}
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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;
|
|
}
|