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 o3U1Mrmj117140 for ; Thu, 29 Apr 2010 20:22:59 -0500 Received: from mail.internode.on.net (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 05CBD154FB07 for ; Thu, 29 Apr 2010 18:24:57 -0700 (PDT) Received: from mail.internode.on.net (bld-mail18.adl2.internode.on.net [150.101.137.103]) by cuda.sgi.com with ESMTP id a8BDQsTmyvfIby01 for ; Thu, 29 Apr 2010 18:24:57 -0700 (PDT) Date: Fri, 30 Apr 2010 11:11:06 +1000 From: Dave Chinner Subject: Re: XFS write speed down Message-ID: <20100430011106.GA32515@dastard> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: Jan Engelhardt Cc: xfs@oss.sgi.com On Thu, Apr 29, 2010 at 11:46:33PM +0200, Jan Engelhardt wrote: > Hi, > > Running 2.6.33.2, I am observing this > > used-xfs$ time ( tar -xf /dev/shm/linux-2.6.33.3.tar ; sync ) > real 12m29.272s > user 0m0.196s > sys 0m3.028s What was the last kernel you ran that didn't have this slowdown? I see the same test on 2.6.32 to my 2.6TB RAID6 volume take about 35s. Can you post the output of "echo w > /proc/sysrq-trigger" while your test is running? Cheers, Dave. -- Dave Chinner david@fromorbit.com _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs