Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754005Ab0GZNsV (ORCPT ); Mon, 26 Jul 2010 09:48:21 -0400 Received: from bombadil.infradead.org ([18.85.46.34]:51055 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751418Ab0GZNsU (ORCPT ); Mon, 26 Jul 2010 09:48:20 -0400 Date: Mon, 26 Jul 2010 09:48:18 -0400 From: Christoph Hellwig To: Vivek Goyal Cc: Heinz Diehl , linux-kernel@vger.kernel.org, jaxboe@fusionio.com, nauman@google.com, dpshah@google.com, guijianfeng@cn.fujitsu.com, jmoyer@redhat.com, czoccolo@gmail.com, Christoph Hellwig Subject: Re: [RFC PATCH] cfq-iosched: IOPS mode for group scheduling and new group_idle tunable Message-ID: <20100726134818.GA26544@infradead.org> References: <1279834172-4227-1-git-send-email-vgoyal@redhat.com> <20100723140343.GA8478@fancy-poultry.org> <20100723141303.GB13104@redhat.com> <20100723145631.GA8844@fancy-poultry.org> <20100723183720.GD13104@redhat.com> <20100724080613.GA6554@fancy-poultry.org> <20100726134329.GB12449@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100726134329.GB12449@redhat.com> User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 651 Lines: 16 On Mon, Jul 26, 2010 at 09:43:29AM -0400, Vivek Goyal wrote: > > Don't know if this is related, but I'm not quite shure if XFS (which I use > > exclusively) uses the jbd/jbd2 journaling layer at all. > > I also don't know. But because this patch is making a difference with your > XFS file system performance, may be it does use. > > CCing Christoph, he can tell us. No, of course XFS doesn't use jbd. -- 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/