From: Joshua D. Drake <jd@commandprompt.com>
To: Michael Nolan <htfoot@gmail.com>
To: pgsql-performance@postgresql.org <pgsql-performance@postgresql.org>
Subject: Re: Are there tuning parameters that don't take effect immediately?
Date: Fri, 12 Jun 2015 14:00:28 -0700
Message-ID: <557B486C.1030207@commandprompt.com> (raw)
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On 06/12/2015 01:37 PM, Michael Nolan wrote:
> Last night I was doing some tuning on a database The longest query I
> was running was taking around 160 seconds. I didn't see much change in
> the running time for that query, even after restarting PG.
>
> Today, with roughly the same system load (possibly even a bit heavier
> load), that query is running about 40 seconds.
Sounds like some of the relations are cached versus not.
JD
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To: pgsql-performance@postgresql.org
Cc: jd@commandprompt.com, htfoot@gmail.com
Subject: Re: Are there tuning parameters that don't take effect immediately?
In-Reply-To: <557B486C.1030207@commandprompt.com>
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