Re: Checkpoint cost, looks like it is WAL/CRC

From: Josh Berkus <josh(at)agliodbs(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: "Zeugswetter Andreas DAZ SD" <ZeugswetterA(at)spardat(dot)at>, "Simon Riggs" <simon(at)2ndquadrant(dot)com>, "Bruce Momjian" <pgman(at)candle(dot)pha(dot)pa(dot)us>, "Bruno Wolff III" <bruno(at)wolff(dot)to>, "Greg Stark" <gsstark(at)mit(dot)edu>, "Russell Smith" <mr-russ(at)pws(dot)com(dot)au>, "Postgres Hackers" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Checkpoint cost, looks like it is WAL/CRC
Date: 2005-07-08 16:27:28
Message-ID: 200507080927.29072.josh@agliodbs.com
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Tom,

> Great. BTW, don't bother testing snapshots between 2005/07/05 2300 EDT
> and just now --- Bruce's full_page_writes patch introduced a large
> random negative component into the timing ...

Ach. Starting over, then.

--Josh

--
Josh Berkus
Aglio Database Solutions
San Francisco

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