Re: How to speedup CHECKPOINTs?

From: "CAJ CAJ" <pguser(at)gmail(dot)com>
To: "Joseph S" <jks(at)selectacast(dot)net>
Cc: "Dmitry Koterov" <dmitry(at)koterov(dot)ru>, pgsql-general(at)postgresql(dot)org
Subject: Re: How to speedup CHECKPOINTs?
Date: 2007-03-29 16:56:57
Message-ID: 467669b30703290956i855e083l22c172882e37ba03@mail.gmail.com
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On 3/28/07, Joseph S <jks(at)selectacast(dot)net> wrote:
>
> Dmitry Koterov wrote:
>
> > And the general question - why SELECT queries slowdown during the
> > CHECKPOINT? I thought that Postgres is a version-based database and read
> > queries are never blocked...
>
> Because the disk is busy.

Is your pg_xlog on a separate disk?

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