X-Original-To: pgsql-performance-postgresql.org@localhost.postgresql.org Received: from localhost (av.hub.org [200.46.204.144]) by postgresql.org (Postfix) with ESMTP id EAA8C11F60AF for ; Fri, 7 Apr 2006 18:19:41 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (av.hub.org [200.46.204.144]) (amavisd-new, port 10024) with ESMTP id 44622-09 for ; Fri, 7 Apr 2006 18:19:37 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey- Received: from fon.nation-net.com (213-2-2-26.uk.vianw.net [213.2.2.26]) by postgresql.org (Postfix) with ESMTP id 6DBA211F6026 for ; Fri, 7 Apr 2006 18:19:39 -0300 (ADT) Received: from fon.nation-net.com (localhost [127.0.0.1]) by fon.nation-net.com (Postfix) with ESMTP id E94B9137594 for ; Fri, 7 Apr 2006 22:19:37 +0100 (BST) Received: from eddie.acentral.co.uk (80-192-144-33.cable.ubr04.pres.blueyonder.co.uk [80.192.144.33]) by fon.nation-net.com (Postfix) with ESMTP id CF91C136CD9 for ; Fri, 7 Apr 2006 22:19:37 +0100 (BST) Received: from eddie.acentral.co.uk (eddie.acentral.co.uk [127.0.0.1]) by eddie.acentral.co.uk (Postfix) with ESMTP id 3E48275FE5 for ; Fri, 7 Apr 2006 22:19:40 +0100 (BST) Received: from localhost.localdomain (unknown [10.0.0.29]) by eddie.acentral.co.uk (Postfix) with SMTP id 2C1EA75D0A for ; Fri, 7 Apr 2006 22:19:40 +0100 (BST) Date: Fri, 7 Apr 2006 22:19:34 +0100 From: Gavin Hamill To: pgsql-performance@postgresql.org Subject: Re: pg 8.1.3, AIX, huge box, painfully slow. Message-Id: <20060407221934.67cc2227.gdh@laterooms.com> In-Reply-To: <20060407161602.7ed5f672.darcy@druid.net> References: <20060407185823.abe93017.gdh@laterooms.com> <1144436060.32269.13.camel@state.g2switchworks.com> <20060407205919.a091da26.gdh@laterooms.com> <20060407161602.7ed5f672.darcy@druid.net> X-Mailer: Sylpheed version 2.1.1 (GTK+ 2.8.6; i486-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV using ClamSMTP X-AV-Checked: ClamAV using ClamSMTP X-Virus-Scanned: by amavisd-new at hub.org X-Spam-Status: No, score=0.09 required=5 tests=[AWL=0.090] X-Spam-Score: 0.09 X-Spam-Level: X-Archive-Number: 200604/156 X-Sequence-Number: 18240 On Fri, 7 Apr 2006 16:16:02 -0400 "D'Arcy J.M. Cain" wrote: > We also had problems with a high end AIX system and we got no help > from IBM. They expected you to put Oracle on and if you used > anything else you were on your own. Urk, I thought IBM were supposedly Linux sycophants thesedays... > We had exactly the same issue. > We expected to get an order of magnitude improvement and instead the > app bogged down. That's kind of encouraging, I suppose - that it might not be something mind-bogglingly stupid I'm doing. > It also got worse over time. We had to reboot every > night to get anything out of it. Needless to say, they got their > system back. > That's Seneca. Oops - meant to check the spelling before I sent that =) > We found that our money was better spent on multiple servers running > NetBSD with a home grown multi-master replication system. Need more > power? Just add more servers. Aye, I originally suggested multiple servers, but was talked round to one giant db so that our devels didn't have to rewrite code to deal with read/write + read-only db handles... Cheers, Gavin.