From: Heikki Linnakangas <heikki@enterprisedb.com>
To: Simon Riggs <simon@2ndquadrant.com>
Cc: Craig Ringer <craig@postnewspapers.com.au>
Cc: pgsql-performance@postgresql.org
Subject: Re: Very slow (2 tuples/second) sequential scan afterbulk insert; speed returns to ~500 tuples/second after commit
Date: Tue, 11 Mar 2008 09:58:20 +0000
Message-ID: <47D657BC.40409@enterprisedb.com> (raw)
In-Reply-To: <1205186427.4269.179.camel@ebony.site>
References: <47D505AF.4040101@postnewspapers.com.au>
<47D5150C.8090802@enterprisedb.com>
<1205186427.4269.179.camel@ebony.site>
Simon Riggs wrote:
> On Mon, 2008-03-10 at 11:01 +0000, Heikki Linnakangas wrote:
>> According
>> to oprofile, all the time is spent in TransactionIdIsInProgress.
>
> I recently submitted a patch to optimise this. Your comments would be
> welcome on the patch.
You mean this one:
http://archives.postgresql.org/pgsql-patches/2008-02/msg00008.php
? Unfortunately that patch won't help in this case.
--
Heikki Linnakangas
EnterpriseDB http://www.enterprisedb.com
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To: pgsql-performance@postgresql.org
Cc: heikki@enterprisedb.com, simon@2ndquadrant.com, craig@postnewspapers.com.au
Subject: Re: Very slow (2 tuples/second) sequential scan afterbulk insert; speed returns to ~500 tuples/second after commit
In-Reply-To: <47D657BC.40409@enterprisedb.com>
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