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Old 04-18-2008, 11:54 AM
Bruno Wolff III
 
Posts: n/a
Default Re: Needed: Simplified guide to optimal memory configuration

On Wed, Jun 15, 2005 at 02:06:27 -0700,
Todd Landfried <tlandfried@viatornetworks.com> wrote:
>
> What's the problem? The sucker gets s-l-o-w on relatively simple
> queries. For example, simply listing all of the users online at one
> time takes 30-45 seconds if we're talking about 800 users. We've
> adjusted the time period for vacuuming the tables to the point where
> it occurs once an hour, but we're getting only a 25% performance gain
> from that. We're looking at the system settings now to see how those
> can be tweaked.


It might be useful to see example slow queries and the corresponding
explain analyze output.

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