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Disable malloc_trim

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This avoids walking the entire heap multiple times for complex
operations like readdir.  This does not entirely eliminate the
observed performance regression but does dramatically reduce s3fs CPU
usage.  References #935.  Fixes #936.
This commit is contained in:
Andrew Gaul 2019-01-28 23:01:52 -08:00
parent a442e843be
commit 3076abc744
1 changed files with 2 additions and 1 deletions
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src/s3fs.h
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@ -51,7 +51,8 @@ static const int64_t FIVE_GB = 5LL * 1024LL * 1024LL * 1024LL;
#include <malloc.h>
#define DISPWARN_MALLOCTRIM(str)
#define S3FS_MALLOCTRIM(pad) malloc_trim(pad)
// malloc_trim disabled due to performance overhead with many threads/heaps
#define S3FS_MALLOCTRIM(pad)
#define S3FS_XMLFREEDOC(doc) \
{ \
xmlFreeDoc(doc); \