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Include LDM tables size for CCtx size estimation where relevant

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senhuang42 2020-10-19 15:22:10 -04:00
parent b1c7fc5768
commit d28d8a1d72
1 changed files with 10 additions and 0 deletions
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10
lib/compress/zstd_compress.c
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@ -209,6 +209,16 @@ static ZSTD_CCtx_params ZSTD_makeCCtxParamsFromCParams(
/* should not matter, as all cParams are presumed properly defined */ /* should not matter, as all cParams are presumed properly defined */
ZSTD_CCtxParams_init(&cctxParams, ZSTD_CLEVEL_DEFAULT); ZSTD_CCtxParams_init(&cctxParams, ZSTD_CLEVEL_DEFAULT);
cctxParams.cParams = cParams; cctxParams.cParams = cParams;
if (cParams.strategy >= ZSTD_btopt && cParams.windowLog >= 27 && cctxParams.nbWorkers == 0) {
DEBUGLOG(4, "ZSTD_makeCCtxParamsFromCParams(): Including LDM into cctx params");
cctxParams.ldmParams.enableLdm = 1;
/* LDM is enabled by default for optimal parser and window size >= 128MB */
ZSTD_ldm_adjustParameters(&cctxParams.ldmParams, &cParams);
assert(cctxParams.ldmParams.hashLog >= cctxParams.ldmParams.bucketSizeLog);
assert(cctxParams.ldmParams.hashRateLog < 32);
}
assert(!ZSTD_checkCParams(cParams)); assert(!ZSTD_checkCParams(cParams));
return cctxParams; return cctxParams;
} }