From: Gregory Stark <stark@enterprisedb.com>
To: Csaba Nagy <nagy@ecircle-ag.com>
Cc: Decibel! <decibel@decibel.org>
Cc: pgsql-performance@postgresql.org
Subject: Re: Linux mis-reporting memory
Date: Fri, 21 Sep 2007 10:43:07 +0100
Message-ID: <87r6ksuzf8.fsf@oxford.xeocode.com> (raw)
In-Reply-To: <1190363401.4661.116.camel@PCD12478>
References: <20070920230400.GM95343@decibel.org>
<16213.1190329934@sss.pgh.pa.us>
<87r6ksa1jb.fsf@oxford.xeocode.com>
<1190363401.4661.116.camel@PCD12478>
"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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: pgsql-performance@postgresql.org
Cc: stark@enterprisedb.com, nagy@ecircle-ag.com, decibel@decibel.org
Subject: Re: Linux mis-reporting memory
In-Reply-To: <87r6ksuzf8.fsf@oxford.xeocode.com>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox