Received: from localhost (maia-1.hub.org [200.46.204.191]) by postgresql.org (Postfix) with ESMTP id 3E28E9F9CE3 for ; Tue, 2 Jan 2007 10:50:33 -0400 (AST) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.191]) (amavisd-new, port 10024) with ESMTP id 91554-08 for ; Tue, 2 Jan 2007 10:50:24 -0400 (AST) X-Greylist: from auto-whitelisted by SQLgrey-1.7.4 Received: from mx1.ipf.is (mack.ipf.is [85.197.192.164]) by postgresql.org (Postfix) with ESMTP id B6E909F939F for ; Tue, 2 Jan 2007 10:50:24 -0400 (AST) Received: (qmail 14428 invoked by uid 1010); 2 Jan 2007 14:46:24 +0000 Received: from 88.149.106.19 by mack (envelope-from , uid 1008) with qmail-scanner-1.25-st-qms (clamdscan: 0.88.4/1639. spamassassin: 3.1.4. perlscan: 1.25-st-qms. Clear:RC:1(88.149.106.19):SA:0(-2.4/4.5):. Processed in 0.407108 secs); 02 Jan 2007 14:46:24 -0000 X-Antivirus-HIVE-Mail-From: gnari@hive.is via mack X-Antivirus-HIVE: 1.25-st-qms (Clear:RC:1(88.149.106.19):SA:0(-2.4/4.5):. Processed in 0.407108 secs Process 14421) Received: from dsl-149-106-19.hive.is (HELO ?192.168.1.33?) (88.149.106.19) by mx1.ipf.is with SMTP; 2 Jan 2007 14:46:24 +0000 Subject: Re: High update activity, PostgreSQL vs BigDBMS From: Ragnar To: Geoffrey Cc: PostgreSQL Performance In-Reply-To: <459A666E.9090508@3times25.net> References: <45935A49.6080602@burntmail.com> <20061229220747.GB15429@alvh.no-ip.org> <459A666E.9090508@3times25.net> Content-Type: text/plain; charset=ISO-8859-1 Date: Tue, 02 Jan 2007 14:54:56 +0000 Message-Id: <1167749696.6369.413.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.8.1 Content-Transfer-Encoding: 8bit X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200701/12 X-Sequence-Number: 22613 On ūri, 2007-01-02 at 09:04 -0500, Geoffrey wrote: > Alvaro Herrera wrote: > > > > Actually it has been suggested that a combination of ext2 (for WAL) and > > ext3 (for data, with data journalling disabled) is a good performer. > > AFAIK you don't want the overhead of journalling for the WAL partition. > > I'm curious as to why ext3 for data with journalling disabled? Would > that not be the same as ext2? I believe Alvaro was referring to ext3 with journalling enabled for meta-data, but not for data. I also believe this is the standard ext3 configuration, but I could be wrong on that. gnari