Re: Linux mis-reporting memory - Mailing list pgsql-performance

From Gregory Stark
Subject Re: Linux mis-reporting memory
Date
Msg-id 87r6ksuzf8.fsf@oxford.xeocode.com
Whole thread Raw
In response to Re: Linux mis-reporting memory  (Csaba Nagy <nagy@ecircle-ag.com>)
Responses Re: Linux mis-reporting memory
Re: Linux mis-reporting memory
List pgsql-performance
"Csaba Nagy" <nagy@ecircle-ag.com> writes:

> On Fri, 2007-09-21 at 09:03 +0100, Gregory Stark wrote:
>> >> Mem:  32945280k total, 32871832k used,    73448k free,   247432k buffers
>> >> Swap:  1951888k total,    42308k used,  1909580k free, 30294300k cached
>> >
>> It seems to imply Linux is paging out sysV shared memory. In fact some of
>> Heikki's tests here showed that Linux would do precisely that.
>
> But then why is it not reporting that in the "Swap: used" section ? It
> only reports 42308k used swap.

Hm, good point.

The other possibility is that Postgres just hasn't even touched a large part
of its shared buffers.

--
  Gregory Stark
  EnterpriseDB          http://www.enterprisedb.com

pgsql-performance by date:

Previous
From: Dimitri Fontaine
Date:
Subject: Re: Linux mis-reporting memory
Next
From: Csaba Nagy
Date:
Subject: Searching for the cause of a bad plan