Re: Strangely Variable Query Performance

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От Steve
Тема Re: Strangely Variable Query Performance
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Msg-id Pine.GSO.4.64.0704121925280.17955@kittyhawk.tanabi.org
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Ответ на Re: Strangely Variable Query Performance  (Tom Lane <tgl@sss.pgh.pa.us>)
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It's a redhat enterprise machine running AMD x64 processors.

Linux ers3.dddcorp.com 2.6.9-42.0.10.ELsmp #1 SMP Fri Feb 16 17:13:42 EST
2007 x86_64 x86_64 x86_64 GNU/Linux

It was compiled by me, straight up, nothing weird at all, no odd compiler
options or wahtever :)

So yeah :/ I'm quite baffled as well,

Talk to you later,

Steve


On Thu, 12 Apr 2007, Tom Lane wrote:

> Steve <cheetah@tanabi.org> writes:
>> Here's my planner parameters:
>
> I copied all these, and my 8.2.x still likes the bitmap scan a lot
> better than the seqscan.  Furthermore, I double-checked the CVS history
> and there definitely haven't been any changes in that area in REL8_2
> branch since 8.2.3.  So I'm a bit baffled.  Maybe the misbehavior is
> platform-specific ... what are you on exactly?  Is there anything
> nonstandard about your Postgres installation?
>
>             regards, tom lane
>

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