Re: [Testperf-general] Re: 8.0beta5 results w/ dbt2

From: Mark Wong <markw(at)osdl(dot)org>
To: Simon Riggs <simon(at)2ndquadrant(dot)com>
Cc: testperf-general(at)pgfoundry(dot)org, pgsql-hackers(at)postgresql(dot)org
Subject: Re: [Testperf-general] Re: 8.0beta5 results w/ dbt2
Date: 2004-12-07 16:17:23
Message-ID: 20041207081723.A8521@osdl.org
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On Tue, Dec 07, 2004 at 09:12:18AM +0000, Simon Riggs wrote:
> Not sure, as yet, what is causing effect 2. It's not related to the
> kernel, but is related to user CPU and I/O waits and effects all tables
> in proportion to their overall I/O usage. Some evidence that it becomes
> more pronounced as CPU utilisation peaks, possibly increasing slightly
> in frequency once this occurs: maybe the cache filling?

I never vacuum during the test. Is it possible that all the updates
and inserts would affect this?

Mark

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