Re: Postgres performance on Veritas VxVM

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От Greg Smith
Тема Re: Postgres performance on Veritas VxVM
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Msg-id 4B16A0D4.4040009@2ndquadrant.com
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Ответ на Re: Postgres performance on Veritas VxVM  (River Tarnell <river@loreley.flyingparchment.org.uk>)
Ответы Re: Postgres performance on Veritas VxVM  (River Tarnell <river@loreley.flyingparchment.org.uk>)
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River Tarnell wrote:
> I'm now running a test using VxFS on SVM soft partitions to see if that
> improves performance at all (but I'd much rather have the flexibility of
> VxVM).
>
Flexibility is often expensive from a performance point of view.  We
regularly tell people here that they have to avoid using Linux's LVM for
similar reasons--while it shouldn't be so slow, it is.  Nothing you can
do about it but use direct disk partitions instead if you need the
performance to be good.

--
Greg Smith    2ndQuadrant   Baltimore, MD
PostgreSQL Training, Services and Support
greg@2ndQuadrant.com  www.2ndQuadrant.com


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