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new variant, sampling by 11

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This commit is contained in:
Yann Collet
2024-10-24 13:17:56 -07:00
parent 2dddf09056
commit 566763fdc9
3 changed files with 10 additions and 4 deletions
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lib/compress/zstd_compress.c
+3 -1
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@@ -4507,8 +4507,10 @@ static size_t ZSTD_optimalBlockSize(ZSTD_CCtx* cctx, const void* src, size_t src
/* dynamic splitting has a cpu cost for analysis,
* due to that cost it's only used for higher levels */
if (strat >= ZSTD_btopt)
return ZSTD_splitBlock(src, srcSize, blockSizeMax, split_lvl2, cctx->tmpWorkspace, cctx->tmpWkspSize);
return ZSTD_splitBlock(src, srcSize, blockSizeMax, split_lvl3, cctx->tmpWorkspace, cctx->tmpWkspSize);
if (strat >= ZSTD_lazy2)
return ZSTD_splitBlock(src, srcSize, blockSizeMax, split_lvl2, cctx->tmpWorkspace, cctx->tmpWkspSize);
if (strat >= ZSTD_greedy)
return ZSTD_splitBlock(src, srcSize, blockSizeMax, split_lvl1, cctx->tmpWorkspace, cctx->tmpWkspSize);
/* blind split strategy
* heuristic value, tested as being "generally better".