Re: explain analyze reports that my queries are fast but they run very slowly

From: Nikolas Everett <nik9000(at)gmail(dot)com>
To: François Beausoleil <francois(at)teksol(dot)info>
Cc: "pgsql-performance(at)postgresql(dot)org" <pgsql-performance(at)postgresql(dot)org>
Subject: Re: explain analyze reports that my queries are fast but they run very slowly
Date: 2012-12-27 17:58:33
Message-ID: CAPmjWd0R5UAxU4FQrN-XN1JJthEoyunW3e_+5rSpM0UpJH1GNg@mail.gmail.com
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New news - the hot slave seems to be performing as expected with no long
pauses.

It looks like we're using an archive_timeout of 60 seconds and default
checkout_timeout and checkpoint_completion_target. I didn't do any of the
research on this. It seems like we're asking postgres to clear all of the
dirty buffers every 60 seconds. With 48 gigs of shared buffers we could
have quite a few buffers to clear. Is there some place I could check on
how all that is going?

On Thu, Dec 27, 2012 at 12:45 PM, Nikolas Everett <nik9000(at)gmail(dot)com> wrote:

> p

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