Re: Memory and/or cache issues?

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От Tom Lane
Тема Re: Memory and/or cache issues?
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Msg-id 23854.1146836633@sss.pgh.pa.us
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Ответ на Re: Memory and/or cache issues?  ("mcelroy, tim" <tim.mcelroy@bostonstock.com>)
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"mcelroy, tim" <tim.mcelroy@bostonstock.com> writes:
> I see this on all the postgres installations, no matter what I
> set the postgresql.conf settings to regarding memory allocation, once
> postgres starts up 95% of the memory on the box is used.  Is there a way
> within Linux to 'see' what or who is actually using this memory?

Probably kernel disk cache.  Are you under the misimpression that unused
memory is a good thing?  If a Unix-ish system *isn't* showing near zero
free memory under load, the kernel is wasting valuable resources.

            regards, tom lane

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