Re: Strange (?) Index behavior?

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От Tom Lane
Тема Re: Strange (?) Index behavior?
Дата
Msg-id 6687.1100298900@sss.pgh.pa.us
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Ответ на Re: Strange (?) Index behavior?  (Allen Landsidel <alandsidel@gmail.com>)
Ответы Re: Strange (?) Index behavior?
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Allen Landsidel <alandsidel@gmail.com> writes:
> On Thu, 11 Nov 2004 16:41:51 -0500, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> Allen Landsidel <alandsidel@gmail.com> writes:
>>> Clustering is really unworkable in this situation.
>>
>> Nonetheless, please do it in your test scenario, so we can see if it has
>> any effect or not.

> It did not, not enough to measure anyway, which does strike me as
> pretty odd.

Me too.  Maybe we are barking up the wrong tree entirely, because I
really expected to see a significant change.

Lets start from first principles.  While you are running this query,
what sort of output do you get from "vmstat 1"?  I'm wondering if it's
I/O bound or CPU bound ...

            regards, tom lane

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