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Re: postgres eating CPU on HP9000

From: Josh Berkus <josh(at)agliodbs(dot)com>
To: Fabio Esposito <nfesposi(at)sourceweave(dot)net>,pgsql-performance(at)postgresql(dot)org
Subject: Re: postgres eating CPU on HP9000
Date: 2004-03-26 23:11:22
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-performance

> Postgres initially worked wonderfully, fast and solid.  It
> preformed complex joins in 0.01secs, and was able to keep up with our
> message queue.  It stayed this way for almost a year during our
> development.
> Recently it started eating up the cpu, and cannot keepup with the system
> like it used to.  The interesting thing here is that it still runs great
> on an older system with less ram, one slower cpu, and an older disk.

This really points to a maintenance problem.  How often do you run VACUUM 
ANALYZE?   You have a very high rate of data turnover, and should need to 
VACUUM frequently.

Also, what's you max_fsm_pages setting.

-Josh Berkus
 Aglio Database Solutions
 San Francisco

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