| From: | Andres Freund <andres(at)2ndquadrant(dot)com> |
|---|---|
| To: | Alexander Shutyaev <shutyaev(at)gmail(dot)com> |
| Cc: | pgsql-general <pgsql-general(at)postgresql(dot)org> |
| Subject: | Re: shared_buffers formula |
| Date: | 2015-03-04 10:11:48 |
| Message-ID: | 20150304101147.GG30405@awork2.anarazel.de |
| Views: | Whole Thread | Raw Message | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-general |
Hi,
On 2015-03-04 14:05:09 +0400, Alexander Shutyaev wrote:
> Thanks for the answer. Now, given this info I've calculated that our
> postgresql should occupy approx. 30,53 GB while the server has 125 GB of
> RAM. However we often see in top that there is very little free memory and
> even swap is used. What could be the reason of postgres using so much
> memory?
Presumably it's used by the OS to cache IO? Are you investigating an
actual problem with memory consumption or just wondering?
Greetings,
Andres Freund
--
Andres Freund http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
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