Re: strange performance regression between 7.4 and 8.1

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От Guido Neitzer
Тема Re: strange performance regression between 7.4 and 8.1
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Msg-id 2D7248A6-38DB-4FE2-A570-6476D5985E85@event-s.net
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Ответ на strange performance regression between 7.4 and 8.1  ("Alex Deucher" <alexdeucher@gmail.com>)
Ответы Re: strange performance regression between 7.4 and 8.1  ("Alex Deucher" <alexdeucher@gmail.com>)
Список pgsql-performance
On 01.03.2007, at 13:40, Alex Deucher wrote:

> I read several places that the SAN might be to blame, but
> testing with bonnie and dd indicates that the SAN is actually almost
> twice as fast as the scsi discs in the old sun server.  I've tried
> adjusting just about every option in the postgres config file, but
> performance remains the same.  Any ideas?

As mentioned last week:

Did you actually try to use the local drives for speed testing? It
might be that the SAN introduces latency especially for random access
you don't see on local drives.

cug

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