David Abrahams wrote:
http://groups.google.com/group/zfs-fuse/msg/5fac5eaf2c7fccb8 shows some
(admittedly very crude) tests I did with OpenSolaris 0906, with some
very surprising performance results. In particular, read speed on an
8-disk pool seemed to drop by 50% when I set up the pool to use RAIDZ2.
Can anyone shed light on why that might be the case?
You are likely disk I/O bound. Look at the disk traffic to locate
your bottleneck.
FWIW, if you enable compression, your benchmark will be
much faster :-)
-- richard
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