X-Original-To: pgsql-performance-postgresql.org@localhost.postgresql.org Received: from localhost (unknown [64.117.224.130]) by svr1.postgresql.org (Postfix) with ESMTP id DDBF7D1B4F0 for ; Wed, 24 Sep 2003 17:48:08 +0000 (GMT) Received: from svr1.postgresql.org ([64.117.224.193]) by localhost (neptune.hub.org [64.117.224.130]) (amavisd-new, port 10024) with ESMTP id 79501-09 for ; Wed, 24 Sep 2003 14:47:37 -0300 (ADT) Received: from perrin.nxad.com (internal.nxad.com [69.1.70.251]) by svr1.postgresql.org (Postfix) with ESMTP id BB247D1B589 for ; Wed, 24 Sep 2003 14:47:36 -0300 (ADT) Received: by perrin.nxad.com (Postfix, from userid 1001) id 885C421067; Wed, 24 Sep 2003 10:47:21 -0700 (PDT) Date: Wed, 24 Sep 2003 10:47:21 -0700 From: Sean Chittenden To: peter Cc: pgsql-performance@postgresql.org Subject: Re: Performance issue Message-ID: <20030924174721.GA11474@perrin.nxad.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-PGP-Key: finger seanc@FreeBSD.org X-PGP-Fingerprint: 3849 3760 1AFE 7B17 11A0 83A6 DD99 E31F BC84 B341 X-Web-Homepage: http://sean.chittenden.org/ User-Agent: Mutt/1.5.4i X-Virus-Scanned: by amavisd-new at postgresql.org X-Archive-Number: 200309/311 X-Sequence-Number: 3677 > My statistics(Athlon 1.8Ghz) > ---------------- > 20,000 items Takes on average 0.078seconds/room > 385,000 items Takes on average .11seconds/room > 690,000 items takes on average .270seconds/room > 1,028,000 items Takes on average .475seconds/room [snip] > I am running Red hat 8. Some of my conf entries that I have changed > follow > shared_buffers = 3700 > effective_cache_size = 4000 > sort_mem = 32168 Have you twiddled with your wal_buffers or checkpoint_segments? Might be something to look at. -sc -- Sean Chittenden