Received: from localhost (unknown [200.46.204.183]) by postgresql.org (Postfix) with ESMTP id BC6C764FD33 for ; Tue, 22 Jul 2008 13:23:31 -0300 (ADT) Received: from postgresql.org ([200.46.204.86]) by localhost (mx1.hub.org [200.46.204.183]) (amavisd-maia, port 10024) with ESMTP id 34470-01-5 for ; Tue, 22 Jul 2008 13:23:04 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from www.postnewspapers.com.au (www.postnewspapers.com.au [202.61.230.242]) by postgresql.org (Postfix) with ESMTP id 538CC650301 for ; Tue, 22 Jul 2008 13:14:06 -0300 (ADT) Received: from mail.postnewspapers.com.au (202-89-185-120.static.dsl.amnet.net.au [202.89.185.120]) by www.postnewspapers.com.au (Postfix) with ESMTP id AB22A5C0D3; Wed, 23 Jul 2008 00:13:46 +0800 (WST) Received: from localhost (access [127.0.0.1]) by mail.postnewspapers.com.au (Postfix) with ESMTP id 7BF481E0436; Wed, 23 Jul 2008 00:13:46 +0800 (WST) X-Virus-Scanned: Debian amavisd-new at postnewspapers.com.au Received: from mail.postnewspapers.com.au ([127.0.0.1]) by localhost (access.postnewspapers.com.au [127.0.0.1]) (amavisd-new, port 10024) with LMTP id Gh-JntzT6VcH; Wed, 23 Jul 2008 00:13:45 +0800 (WST) Received: from [192.168.44.95] (203.161.97.213.static.amnet.net.au [203.161.97.213]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "Craig Ringer", Issuer "POST Certificate Authority" (verified OK)) by mail.postnewspapers.com.au (Postfix) with ESMTP id 964EC1E0435; Wed, 23 Jul 2008 00:13:45 +0800 (WST) Message-ID: <4886073A.7090309@postnewspapers.com.au> Date: Wed, 23 Jul 2008 00:13:46 +0800 From: Craig Ringer User-Agent: Thunderbird 2.0.0.14 (X11/20080505) MIME-Version: 1.0 To: samantha mahindrakar Cc: pgsql-performance@postgresql.org Subject: Re: Performance of jobs References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=0 tagged_above=0 required=5 tests=none X-Spam-Level: X-Archive-Number: 200807/205 X-Sequence-Number: 30805 samantha mahindrakar wrote: > I am facing performance issues with running scheduled jobs. There are > multiple jobs running on the database ...not necessarily acting on the > same table. Either ways i checked if there was a locking issue, I did > not find any conflicting issues. The program is run over night > ......when i check the log files i saw that it runs slow when other > loaders are running.Is there any way i can improve the performance?Can > someone help me understand how to debug this bottle neck? What is your hardware? OS? OS version? PostgreSQL version? Number of disks, disk type, disk/RAID controller, RAID/LVM configuration, ... -- Craig Ringer