Re: 8.4 open item: copy performance regression?

From: Josh Berkus <josh(at)agliodbs(dot)com>
To: Stefan Kaltenbrunner <stefan(at)kaltenbrunner(dot)cc>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Andrew Dunstan <andrew(at)dunslane(dot)net>, Kevin Grittner <Kevin(dot)Grittner(at)wicourts(dot)gov>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: 8.4 open item: copy performance regression?
Date: 2009-06-19 20:39:03
Message-ID: 4A3BF767.6060207@agliodbs.com
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> so 4096 * 1024 / BLCKSZ seems to be the sweet spot and also results in
> more or less the same performance that 8.3 had.

Can some folks test this with different size COPYs? That's both
larger/smaller tables, and larger/smaller rows. We should also test
copy with large blob data.

--
Josh Berkus
PostgreSQL Experts Inc.
www.pgexperts.com

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