ddidderr/zstd-rs
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

bench correctly measures time for multi-threaded compression (posix only)

Browse Source
This commit is contained in:
Yann Collet
2016-12-31 03:31:26 +01:00
parent f765a375a5
commit c6a6417458
3 changed files with 32 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files
lib/compress/zstdmt_compress.c
+3 -3
View File
@@ -322,16 +322,16 @@ size_t ZSTDMT_freeCCtx(ZSTDMT_CCtx* cctx)
return 0;
}
size_t ZSTDMT_compressCCtx(ZSTDMT_CCtx* cctx,
size_t ZSTDMT_compressCCtx(ZSTDMT_CCtx* mtctx,
void* dst, size_t dstCapacity,
const void* src, size_t srcSize,
int compressionLevel)
{
ZSTDMT_jobAgency* jobAgency = &cctx->jobAgency;
ZSTDMT_jobAgency* jobAgency = &mtctx->jobAgency;
ZSTD_parameters const params = ZSTD_getParams(compressionLevel, srcSize, 0);
size_t const frameSizeTarget = (size_t)1 << (params.cParams.windowLog + 2);
unsigned const nbFramesMax = (unsigned)(srcSize / frameSizeTarget) + (srcSize < frameSizeTarget) /* min 1 */;
unsigned const nbFrames = MIN(nbFramesMax, cctx->nbThreads);
unsigned const nbFrames = MIN(nbFramesMax, mtctx->nbThreads);
size_t const avgFrameSize = (srcSize + (nbFrames-1)) / nbFrames;
size_t remainingSrcSize = srcSize;
const char* const srcStart = (const char*)src;