X-Original-To: pgsql-performance-postgresql.org@postgresql.org Received: from localhost (mx1.hub.org [200.46.208.251]) by postgresql.org (Postfix) with ESMTP id EB8829FB37E for ; Wed, 20 Sep 2006 12:44:04 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.208.251]) (amavisd-new, port 10024) with ESMTP id 82775-06 for ; Wed, 20 Sep 2006 12:43:54 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey- Received: from globalrelay.com (mail1.globalrelay.com [216.18.71.77]) by postgresql.org (Postfix) with ESMTP id D48799FB3A1 for ; Wed, 20 Sep 2006 12:43:54 -0300 (ADT) X-Virus-Scanned: Scanned by GRC-AntiVirus Gateway X-GR-Acctd: YES Received: from [67.90.96.2] (HELO DaveEMachine) by globalrelay.com (CommuniGate Pro SMTP 4.2.3) with ESMTP id 105909255; Wed, 20 Sep 2006 08:43:50 -0700 From: "Dave Dutcher" To: "'Nuno Alves'" , Subject: Re: running benchmark test on a 50GB database Date: Wed, 20 Sep 2006 10:43:45 -0500 Message-ID: <022401c6dccb$914248f0$8300a8c0@tridecap.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2962 In-Reply-To: <350f2a20609200828k7c16da77i8933a238e9de847b@mail.gmail.com> Importance: Normal X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=0.112 tagged_above=0 required=5 tests=AWL X-Spam-Level: X-Archive-Number: 200609/269 X-Sequence-Number: 20955 I would start by reading this web page: http://powerpostgresql.com/PerfList There are probably some other web pages out there with similar information, or you can check the mailing list archives for a lot of info. If those places don't help, then you should try to indentify what queries are slow, post an EXPLAIN ANALYZE of the slow queries along with the relvent schema info (i.e. table definitions and indexes). > -----Original Message----- > From: pgsql-performance-owner@postgresql.org > [mailto:pgsql-performance-owner@postgresql.org] On Behalf Of > Nuno Alves > Sent: Wednesday, September 20, 2006 10:28 AM > To: pgsql-performance@postgresql.org > Subject: [PERFORM] running benchmark test on a 50GB database > > > Hi, > > I am running bechmark test in a 50 GB postgresql database. > I have the postgresql.conf with all parameters by default. > In this configuration the database is very, very slow. > > Could you please tell which is the best configuration? > > My system: > Pentium D 3.0Ghz > RAM: 1GB > HD: 150GB SATA > > Thanks in advance, > Nuno > > ---------------------------(end of > broadcast)--------------------------- > TIP 9: In versions below 8.0, the planner will ignore your desire to > choose an index scan if your joining column's datatypes do not > match >