zfs discuss - Dec 2009 - CR#6850837 "libshare enhancements to address performance and scalability"

I''ve had a case open for a year or so now regarding the inefficiencies
of
having a large number of zfs filesystems, in particular how long it takes
to share/unshare them (resulting in a reboot cycle time on my x4500 with
8000 file systems of over two hours).

I got an update indicating that the subject mentioned bugfix was going to
resolve this, but that they did not plan to back port it to Solaris 10.
They also were not able to provide any technical details of what was fixed
or how much the performance might improve.

Would anyone happen to have any details of what changes were made, what
kind of improvements might be expected, and why it''s not going to be
feasible to backport that change to Solaris 10?

Thanks...


-- 
Paul B. Henson  |  (909) 979-6361  |  http://www.csupomona.edu/~henson/
Operating Systems and Network Analyst  |  henson at csupomona.edu
California State Polytechnic University  |  Pomona CA 91768

Ditto, and also some estimate of when we can see them in opensolaris.

On Wed, Dec 9, 2009 at 11:02 PM, Paul B. Henson <henson at acm.org> wrote:
>
> I''ve had a case open for a year or so now regarding the
inefficiencies of
> having a large number of zfs filesystems, in particular how long it takes
> to share/unshare them (resulting in a reboot cycle time on my x4500 with
> 8000 file systems of over two hours).
>
> I got an update indicating that the subject mentioned bugfix was going to
> resolve this, but that they did not plan to back port it to Solaris 10.
> They also were not able to provide any technical details of what was fixed
> or how much the performance might improve.
>
> Would anyone happen to have any details of what changes were made, what
> kind of improvements might be expected, and why it''s not going to
be
> feasible to backport that change to Solaris 10?
>
> Thanks...
>
>
> --
> Paul B. Henson  |  (909) 979-6361  | 
http://www.csupomona.edu/~henson/<http://www.csupomona.edu/%7Ehenson/>
> Operating Systems and Network Analyst  |  henson at csupomona.edu
> California State Polytechnic University  |  Pomona CA 91768
> _______________________________________________
> zfs-discuss mailing list
> zfs-discuss at opensolaris.org
> http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
>
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