Re: Huge performance problem between 7.4.1 and 8.0.3 -

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: "Matthew T(dot) O'Connor" <matthew(at)zeut(dot)net>
Cc: Robert Creager <Robert_Creager(at)LogicalChaos(dot)org>, PGPerformance <pgsql-performance(at)postgresql(dot)org>, Andy Hewitt <Andy_Hewitt(at)StorageTek(dot)com>
Subject: Re: Huge performance problem between 7.4.1 and 8.0.3 -
Date: 2005-07-18 14:53:04
Message-ID: 3283.1121698384@sss.pgh.pa.us
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"Matthew T. O'Connor" <matthew(at)zeut(dot)net> writes:
> Therefore (if you aren't specifying them from the command line), on 803,
> the vacuum delay settings should be the same for a cron issued vacuum
> and an autovacuum issued vacuum. So if the vacuum delay settings are
> the problem, then it should show up either way.

... as indeed it does according to Robert's recent reports. Still
awaiting the definitive test, but I'm starting to think this is another
case of the strange behavior Ian Westmacott exhibited.

regards, tom lane

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