Received: from localhost (unknown [200.46.204.183]) by postgresql.org (Postfix) with ESMTP id C1BDD2E004B for ; Sun, 16 Mar 2008 17:56:36 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.183]) (amavisd-maia, port 10024) with ESMTP id 75376-10 for ; Sun, 16 Mar 2008 17:56:29 -0300 (ADT) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.5 Received: from wa-out-1112.google.com (wa-out-1112.google.com [209.85.146.181]) by postgresql.org (Postfix) with ESMTP id 81C222E004A for ; Sun, 16 Mar 2008 17:56:27 -0300 (ADT) Received: by wa-out-1112.google.com with SMTP id m38so5878263waf.5 for ; Sun, 16 Mar 2008 13:56:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; bh=GvRtx57XcJN7u7gTB198PQF/FV3uVs475VqCEVW815Q=; b=lpiaozsJdRBSEy3EM6hL0eJCLJDsUiWVs+6WAeODKQENUA4njo9qtA6JGlkBzfIl4yY+RoCtkJOs0oeWO4N5IWP3kVAnregYGyd0Q3TWH9LZtb3ne8sFvg9i4ALCUKVytv4kCle2Ch4AtemX932/AOD+FgxG9ETBHZ9L6+LY3TM= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=W1q46osay94GBZmOyOvn11d92Y7RpxaScmRf6v5Gi0RJGVDU4OuNbAqB69AfdpeiHgjdQv5M0malLbYsV/unGW4QGUJ29n2P0kHnbb43xehhZLOaPtcIKrVMzhs/eObIqeIibxLAfQzqoL2dfLsqrkyGYN3k0/DcDOQMvP5+IFU= Received: by 10.114.168.1 with SMTP id q1mr16675365wae.74.1205700986424; Sun, 16 Mar 2008 13:56:26 -0700 (PDT) Received: by 10.114.133.6 with HTTP; Sun, 16 Mar 2008 13:56:26 -0700 (PDT) Message-ID: Date: Sun, 16 Mar 2008 14:56:26 -0600 From: "Scott Marlowe" To: "Dave Cramer" Subject: Re: Benchmark: Dell/Perc 6, 8 disk RAID 10 Cc: "Craig James" , Justin , "Greg Smith" , pgsql-performance@postgresql.org In-Reply-To: <3CD2CF85-AD79-4500-95EE-57E6B2D01721@fastcrypt.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <47DA1866.3050500@krogh.cc> <47DA37E1.6050104@emproshunts.com> <47DA5852.30004@emproshunts.com> <47DCBBF9.1090401@emproshunts.com> <47DD6F4C.2050208@emolecules.com> <3CD2CF85-AD79-4500-95EE-57E6B2D01721@fastcrypt.com> X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200803/338 X-Sequence-Number: 29292 On Sun, Mar 16, 2008 at 1:36 PM, Dave Cramer wrote: > > On 16-Mar-08, at 3:04 PM, Craig James wrote: > > Just out of curiosity: Last time I did research, the word seemed to > > be that xfs was better than ext2 or ext3. Is that not true? Why > > use ext2/3 at all if xfs is faster for Postgres? > > > I would like to see the evidence of this. I doubt that it would be > faster than ext2. There is no journaling on ext2. Well, if you're dropping a large table ext2/3 has that very long wait thing that can happen. Don't know how much battery backed cache would help.