Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750798AbWAKVeE (ORCPT ); Wed, 11 Jan 2006 16:34:04 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750808AbWAKVeE (ORCPT ); Wed, 11 Jan 2006 16:34:04 -0500 Received: from e32.co.us.ibm.com ([32.97.110.150]:20927 "EHLO e32.co.us.ibm.com") by vger.kernel.org with ESMTP id S1750798AbWAKVeC (ORCPT ); Wed, 11 Jan 2006 16:34:02 -0500 Subject: Re: [PATCH 0/5] multiple block allocation to current ext3 From: Mingming Cao Reply-To: cmm@us.ibm.com To: Andrew Morton Cc: hch@lst.de, pbadari@us.ibm.com, sct@redhat.com, linux-kernel@vger.kernel.org, ext2-devel@lists.sourceforge.net In-Reply-To: <20060111114303.45540193.akpm@osdl.org> References: <1112673094.14322.10.camel@mindpipe> <1112879303.2859.78.camel@sisko.sctweedie.blueyonder.co.uk> <1112917023.3787.75.camel@dyn318043bld.beaverton.ibm.com> <1112971236.1975.104.camel@sisko.sctweedie.blueyonder.co.uk> <1112983801.10605.32.camel@dyn318043bld.beaverton.ibm.com> <1113220089.2164.52.camel@sisko.sctweedie.blueyonder.co.uk> <1113244710.4413.38.camel@localhost.localdomain> <1113249435.2164.198.camel@sisko.sctweedie.blueyonder.co.uk> <1113288087.4319.49.camel@localhost.localdomain> <1113304715.2404.39.camel@sisko.sctweedie.blueyonder.co.uk> <1113348434.4125.54.camel@dyn318043bld.beaverton.ibm.com> <1113388142.3019.12.camel@sisko.sctweedie.blueyonder.co.uk> <1114207837.7339.50.camel@localhost.localdomain> <1114659912.16933.5.camel@mindpipe> <1114715665.18996.29.camel@localhost.localdomain> <1136935562.4901.41.camel@dyn9047017067.beaverton.ibm.com> <20060110212551.411a766d.akpm@osdl.org> <1137007032.4395.24.camel@localhost.localdomain> <20060111114303.45540193.akpm@osdl.org> Content-Type: text/plain Organization: IBM LTC Date: Wed, 11 Jan 2006 13:31:44 -0800 Message-Id: <1137015104.4395.37.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.0.4 (2.0.4-7) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 774 Lines: 27 On Wed, 2006-01-11 at 11:43 -0800, Andrew Morton wrote: > Mingming Cao wrote: > > > > # time ./filetst -b 1048576 -w -f /mnt/a > > 2.6.14 2.6.15 > > real 0m21.710s 0m25.773s > > user 0m0.012s 0m0.004s > > sys 0m14.569s 0m15.065s > > That's a big drop. > > Was it doing I/O, or was it all from pagecache? > It's doing IO on a freshly created filesystem. It was running with AS io scheduler. It seems DIO has no problem, and ext2 has no regression either... Will keep you posted. Mingming - 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/