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 nA2LYMEU095343 for ; Mon, 2 Nov 2009 15:34:23 -0600 Received: from mail.sandeen.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 1242B14D0ADB for ; Mon, 2 Nov 2009 13:34:35 -0800 (PST) Received: from mail.sandeen.net (sandeen.net [209.173.210.139]) by cuda.sgi.com with ESMTP id Yb6o2wt9qDo2Evag for ; Mon, 02 Nov 2009 13:34:35 -0800 (PST) Message-ID: <4AEF506A.8060803@sandeen.net> Date: Mon, 02 Nov 2009 15:34:34 -0600 From: Eric Sandeen MIME-Version: 1.0 Subject: Re: XFS and DPX files References: <4AEC2CF4.8040703@aol.com> <20091031151825.46210b6a@galadriel.home> <4AEC4BAA.20606@aol.com> In-Reply-To: <4AEC4BAA.20606@aol.com> List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: "AndrewL733@aol.com" Cc: xfs@oss.sgi.com AndrewL733@aol.com wrote: > >> Maybe you should try mounting the XFS filesystem with these options : >> nobarrier,noatime >> >> > Thanks. Already doing that -- 3ware controller does not support > barriers, so that's automatically ruled out (you see a message in the > syslog when mounting the filesystem that barriers will not be used). > Already mounting with "noatime". Also have been trying "filestreams". Filestreams is really only useful if you have multiple threads writing in this manner - for example 2 different movie streams. Normally an allocation group is chosen for all new files in a directory, so if you have 2 streams to 2 directories you are writing to 2 ag's ... all is good until those ags get full and things spill over. At that point you may wind up interleaving those files from both streams in a 3rd ag. the filestreams option more or less locks out the new ag from other streams, so that stuff stays segregated. If this is your situation (multiple streams, each to their own directory), then filestreams may help. I think for a single stream of files, for a single video source, it won't matter. -Eric _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs