Re: Postgres performance on Veritas VxVM

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От River Tarnell
Тема Re: Postgres performance on Veritas VxVM
Дата
Msg-id 20091202162949.GA21325@loreley.flyingparchment.org.uk
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Ответ на Re: Postgres performance on Veritas VxVM  (Greg Smith <greg@2ndquadrant.com>)
Ответы Re: Postgres performance on Veritas VxVM  (Greg Smith <greg@2ndquadrant.com>)
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Greg Smith:
> What you should do is the following:

> postgresql.conf:  wal_sync_method = open_datasync
> /sql/pg_xlog:  'noatime,cio,mincache=direct,convosync=direct

> That should work quite well.

Thanks.  That reduced the import time to about 4hr 30 minutes.  However,
this is still much slower than using VxFS with plain disks.  Any other
ideas?

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).

    - river.
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