From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with SMTP id p2AFmL9q110090 for ; Thu, 10 Mar 2011 09:48:26 -0600 Received: from greer.hardwarefreak.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with SMTP id 0161F1DE4E39 for ; Thu, 10 Mar 2011 07:51:01 -0800 (PST) Received: from greer.hardwarefreak.com (mo-65-41-216-221.sta.embarqhsd.net [65.41.216.221]) by cuda.sgi.com with SMTP id b6HnFg6ochr8lCka for ; Thu, 10 Mar 2011 07:51:01 -0800 (PST) Received: from [192.168.100.53] (gffx.hardwarefreak.com [192.168.100.53]) by greer.hardwarefreak.com (Postfix) with ESMTP id 96FD06C168 for ; Thu, 10 Mar 2011 09:51:00 -0600 (CST) Message-ID: <4D78F364.5000000@hardwarefreak.com> Date: Thu, 10 Mar 2011 09:51:00 -0600 From: Stan Hoeppner MIME-Version: 1.0 Subject: Re: Many-metadata performance still at a loss References: 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: xfs@oss.sgi.com Jan Engelhardt put forth on 3/10/2011 8:14 AM: > Hi, > > > Between 2.6.33 and 2.6.37 there was a lot of interesting announcements > with regards to XFS performance. However, now that I booted into > 2.6.37.2, I still see the metadata slowness from earlier. > (Basically `time (tar -xf linux-2.6.37.tar.gz; sync)` - ext4 gets the > job done in like 15-20 seconds, xfs is still syncing after 11 minutes.) > > Was there something I missed? Yes. You have to add "delaylog" to your mount options to enable the metadata performance enhancement. It won't be the default setting until 2.6.39. -- Stan _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs