Re: stats collector process high CPU utilization

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: minshall(at)intellicon(dot)biz
Cc: pgsql-performance(at)postgresql(dot)org, Alvaro Herrera <alvherre(at)commandprompt(dot)com>
Subject: Re: stats collector process high CPU utilization
Date: 2007-02-09 04:26:58
Message-ID: 14668.1170995218@sss.pgh.pa.us
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minshall(at)intellicon(dot)biz writes:
> While exploring this problem, I've noticed that one of the frequent insert
> processes creates a few temporary tables to do post-processing. Is it
> possible that the stats collector is getting bloated with stats from these
> short-lived temporary tables? During periods of high activity it could be
> creating temporary tables as often as two per second.

Hmmm ... that's an interesting point, but offhand I don't see why it'd
cause more of a problem in 8.2 than 8.1. Alvaro, any thoughts?

regards, tom lane

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