From: Brad Nicholson <bnichols@ca.afilias.info>
To: Greg Smith <gsmith@gregsmith.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: Long Running Commits - Not Checkpoints
Date: Thu, 13 Sep 2007 13:58:19 -0400
Message-ID: <1189706299.8624.43.camel@bnicholson-desktop> (raw)
In-Reply-To: <Pine.GSO.4.64.0709131149390.20144@westnet.com>
References: <1189692915.8624.22.camel@bnicholson-desktop>
<Pine.GSO.4.64.0709131149390.20144@westnet.com>
On Thu, 2007-09-13 at 12:12 -0400, Greg Smith wrote:
> Since you're probably not monitoring I/O waits and similar statistics on
> how the disk array's cache is being used, whether this is happening or not
> to you won't be obvious from what the operating system is reporting.
A sysadmin looked at cache usage on the disk array. The read cache is
being used heavily, and the write cache is not.
--
Brad Nicholson 416-673-4106
Database Administrator, Afilias Canada Corp.
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To: pgsql-performance@postgresql.org
Cc: bnichols@ca.afilias.info, gsmith@gregsmith.com
Subject: Re: Long Running Commits - Not Checkpoints
In-Reply-To: <1189706299.8624.43.camel@bnicholson-desktop>
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