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[zstdcli] Add a flag to control literals compression

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This commit is contained in:
Nick Terrell
2019-02-15 15:00:45 -08:00
parent 5261a288d1
commit 0c53c5ad4a
6 changed files with 42 additions and 8 deletions
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programs/fileio.c
+9
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@@ -296,6 +296,7 @@ struct FIO_prefs_s {
int ldmMinMatch;
int ldmBucketSizeLog;
int ldmHashRateLog;
ZSTD_literalCompressionMode_e literalCompressionMode;
/* IO preferences */
U32 removeSrcFile;
@@ -339,6 +340,7 @@ FIO_prefs_t* FIO_createPreferences(void)
ret->ldmMinMatch = 0;
ret->ldmBucketSizeLog = FIO_LDM_PARAM_NOTSET;
ret->ldmHashRateLog = FIO_LDM_PARAM_NOTSET;
ret->literalCompressionMode = ZSTD_lcm_auto;
return ret;
}
@@ -406,6 +408,12 @@ void FIO_setRsyncable(FIO_prefs_t* const prefs, int rsyncable) {
prefs->rsyncable = rsyncable;
}
void FIO_setLiteralCompressionMode(
FIO_prefs_t* const prefs,
ZSTD_literalCompressionMode_e mode) {
prefs->literalCompressionMode = mode;
}
void FIO_setAdaptMin(FIO_prefs_t* const prefs, int minCLevel)
{
#ifndef ZSTD_NOCOMPRESS
@@ -674,6 +682,7 @@ static cRess_t FIO_createCResources(FIO_prefs_t* const prefs,
CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_c_minMatch, (int)comprParams.minMatch) );
CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_c_targetLength, (int)comprParams.targetLength) );
CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_c_strategy, comprParams.strategy) );
CHECK( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_c_literalCompressionMode, (int)prefs->literalCompressionMode) );
/* multi-threading */
#ifdef ZSTD_MULTITHREAD
DISPLAYLEVEL(5,"set nb workers = %u \n", prefs->nbWorkers);