Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751238AbWEWB0i (ORCPT ); Mon, 22 May 2006 21:26:38 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751239AbWEWB0h (ORCPT ); Mon, 22 May 2006 21:26:37 -0400 Received: from omx2-ext.sgi.com ([192.48.171.19]:15243 "EHLO omx2.sgi.com") by vger.kernel.org with ESMTP id S1751238AbWEWB0a (ORCPT ); Mon, 22 May 2006 21:26:30 -0400 Date: Tue, 23 May 2006 11:26:05 +1000 From: David Chinner To: Jan Engelhardt Cc: Nathan Scott , linux-xfs@oss.sgi.com, Linux Kernel Mailing List Subject: Re: XFS write speed drop Message-ID: <20060523012605.GI5902445@melbourne.sgi.com> References: <20060522105326.A212600@wobbly.melbourne.sgi.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.2.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 839 Lines: 24 On Mon, May 22, 2006 at 02:21:48PM +0200, Jan Engelhardt wrote: > >You're a bit light on details here. > > > >Can you send the benchmark results themselves please? (as in, > >the test(s) you've run that lead you to see 6-8x, and the data > >those tests produced). Also, xfs_info output, and maybe list > >the device driver(s) involved here too. Jan, just out of curiousity, can you also run the tests with barriers off and the drive write cache turned off? I would expect the cache+barriers to be faster... Cheers, Dave. -- Dave Chinner R&D Software Enginner SGI Australian Software Group - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/