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Re: Slow deletes in 8.1 when FKs are involved
- From: "Jim C. Nasby" <jnasby(at)pervasive(dot)com>
- To: Will Reese <wreese(at)rackspace(dot)com>
- Cc: pgsql-performance(at)postgresql(dot)org
- Subject: Re: Slow deletes in 8.1 when FKs are involved
- Date: Mon, 24 Apr 2006 12:09:15 -0500
On Sun, Apr 23, 2006 at 09:41:14PM -0500, Will Reese wrote: > I'm preparing for an upgrade from PostgreSQL 7.4.5 to 8.1.3, and I > noticed a potential performance issue. > > I have two servers, a dual proc Dell with raid 5 running PostgreSQL > 7.4, and a quad proc Dell with a storage array running PostgreSQL > 8.1. Both servers have identical postgresql.conf settings and were BTW, you'll want to tweak some things between the two .conf files, especially if the 8.1.3 server has more memory. Faster drive array means you probably want to tweak random_page_cost down. Also, 8.1.3 has a lot of new config settings compared to 7.4.x; it'd probably be best to take the default 8.1 config and tweak it, rather than bringing the 7.4 config over. -- Jim C. Nasby, Sr. Engineering Consultant jnasby(at)pervasive(dot)com Pervasive Software http://pervasive.com work: 512-231-6117 vcard: http://jim.nasby.net/pervasive.vcf cell: 512-569-9461
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- Slow deletes in 8.1 when FKs are involved
- From: Will Reese
- Slow deletes in 8.1 when FKs are involved
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