On 11.06.2014 14:56, Daniil Lunev via illumos-developer wrote:
Updated patch to the LZ4 metadata compression http://cr.illumos.org/~webrev/DKOIman/LZ4_MD/ ZDB output is attached. Not so big gain on compression rate, though, it is better. Also, it was shown in initial lz4 commit that lz4 is faster. That's why changing metadata compression to the lz4 aglorithm is a reasonable idea.
I think it's better to cache the result of "spa_feature_is_active(os->os_spa, SPA_FEATURE_LZ4_COMPRESS);" and use this in dmu_write_policy() - Joerg _______________________________________________ developer mailing list [email protected] http://lists.open-zfs.org/mailman/listinfo/developer
