Re: WIP parallel restore patch

From: Stefan Kaltenbrunner <stefan(at)kaltenbrunner(dot)cc>
To: Andrew Dunstan <andrew(at)dunslane(dot)net>
Cc: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: WIP parallel restore patch
Date: 2008-11-05 12:40:45
Message-ID: 4911944D.2000003@kaltenbrunner.cc
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Andrew Dunstan wrote:
>
> Attached is my latest parallel restore patch. I think it's functionally
> complete for Unix.
>
> Many bugs have been fixed since the last patch, and the hardcoded
> limitation to two table dependencies is removed. It seems fairly robust
> in my recent testing.

this version seems to be working much better on my test setup.
This patch results in a fairly nice improvment from ~170min (-m 1
--truncate-before-load) to ~39min (-m 16 --truncate-before-load) on my 8
core test box using a 70GB (uncompressed) dump consisting of 709 tables.

Stefan

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