Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964967AbWEVAxz (ORCPT ); Sun, 21 May 2006 20:53:55 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S964968AbWEVAxz (ORCPT ); Sun, 21 May 2006 20:53:55 -0400 Received: from omx2-ext.sgi.com ([192.48.171.19]:55487 "EHLO omx2.sgi.com") by vger.kernel.org with ESMTP id S964967AbWEVAxz (ORCPT ); Sun, 21 May 2006 20:53:55 -0400 Date: Mon, 22 May 2006 10:53:26 +1000 From: Nathan Scott To: Jan Engelhardt Cc: linux-xfs@oss.sgi.com, Linux Kernel Mailing List Subject: Re: XFS write speed drop Message-ID: <20060522105326.A212600@wobbly.melbourne.sgi.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: ; from jengelh@linux01.gwdg.de on Fri, May 19, 2006 at 11:34:28AM +0200 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 829 Lines: 25 On Fri, May 19, 2006 at 11:34:28AM +0200, Jan Engelhardt wrote: > Hello, Hi Jan, > I have noticed that after an upgrade from 2.6.16-rcX -> 2.6.17-rc4, writes > to one (hdc) xfs filesystem have become significantly slower (factor 6 to Buffered writes? Direct writes? Sync writes? Log writes? 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. thanks! -- Nathan - 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/