Regarding the bold statement
There is no NFS over ZFS issue
What I mean here is that, if you _do_ encounter a
performance pathology not linked to the NVRAM Storage/cache
flush issue then you _should_ complain or better get someone
to do an analysis of the situation.
One should not assume that some observed pathological
performance of NFS/ZFS is widespread and due to some known
ZFS issue about to be fixed.
To be sure, there are lots of performance opportunities that
will provide incremental improvements the most significant
of which "ZFS Separate Intent Log" just integrated in
Nevada. This opens up the field for further NFS/ZFS
performance investigations.
But the data that got this thread started seem to highlight
an NFS vs Samba opportinity, something we need to look
into. Otherwise I don't think that the data produced so far
has hightlighted any specific NFS/ZFS issue. There are
certainly opportinities for incremental performance
improvements but, to the best of my knowledge, outside the
NVRAM/Flush issue on certain storage :
There are no known prevalent NFS over ZFS performance
pathologies on record.
-r
Ref:
http://mail.opensolaris.org/pipermail/zfs-discuss/2007-June/thread.html#29026
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