From: Craig Ringer <ringerc@ringerc.id.au>
To: Tomas Vondra <tv@fuzzy.cz>
Cc: pgsql-performance@postgresql.org
Subject: Re: strange pgbench results (as if blocked at the end)
Date: Sat, 13 Aug 2011 08:18:48 +0800
Message-ID: <4E45C2E8.5070701@ringerc.id.au> (raw)
In-Reply-To: <2f9ba8ed6e4ed11d9a6d236cb4d2a2ec.squirrel@sq.gransy.com>
References: <2f9ba8ed6e4ed11d9a6d236cb4d2a2ec.squirrel@sq.gransy.com>
On 13/08/2011 7:37 AM, Tomas Vondra wrote:
> I'd understand a slowdown, but why does it block?
My first guess is that you're having checkpoint issues. Try enabling
logging of checkpoints and checkpoint timings and see if anything there
lines up with the pause you encounter.
--
Craig Ringer
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: ringerc@ringerc.id.au, tv@fuzzy.cz
Subject: Re: strange pgbench results (as if blocked at the end)
In-Reply-To: <4E45C2E8.5070701@ringerc.id.au>
* 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