From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id oAMMUUfZ117956 for ; Mon, 22 Nov 2010 16:30:30 -0600 Received: from ssec.wisc.edu (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id C643313E1C98 for ; Mon, 22 Nov 2010 14:32:07 -0800 (PST) Received: from ssec.wisc.edu (mahogany.ssec.wisc.edu [128.104.110.2]) by cuda.sgi.com with ESMTP id jdvJdYGDFVzXKQ5s for ; Mon, 22 Nov 2010 14:32:07 -0800 (PST) Message-ID: <4CEAEF66.7030708@ssec.wisc.edu> Date: Mon, 22 Nov 2010 16:32:06 -0600 From: Jesse Stroik MIME-Version: 1.0 Subject: Re: Improving XFS file system inode performance References: <4CEAE7D7.6050401@ssec.wisc.edu> <20101122232528.21b78a9e@galadriel.home> In-Reply-To: <20101122232528.21b78a9e@galadriel.home> List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="iso-8859-1"; Format="flowed" Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: Emmanuel Florac Cc: Linux XFS On 11/22/2010 04:25 PM, Emmanuel Florac wrote: > Le Mon, 22 Nov 2010 15:59:51 -0600 vous =E9criviez: > >> Performance was fine before the file system was filled -- last week >> ~8TB showed up and filled the 20TB file system. Since, it has been >> performing poorly. > > Maybe it got fragmented? How does fragmentation look like? I wasn't able to resolve this in reasonable time. Part of the issue is = that we're dealing with files within about 100k directories. I'll = attempt to get the fragmentation numbers overnight. I suspect the regularly listed set of files on this fs exceeds the inode = cache. Where can I determine the cache misses and tune the file system? Best, Jesse _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs