Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 19 Sep 2002 02:39:27 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 19 Sep 2002 02:39:27 -0400 Received: from h106-129-61.datawire.net ([207.61.129.106]:10653 "EHLO newmail.datawire.net") by vger.kernel.org with ESMTP id convert rfc822-to-8bit; Thu, 19 Sep 2002 02:39:26 -0400 From: Shawn Starr Organization: sh0n.net To: Andreas Dilger Subject: Re: [BENCHMARK] EXT3 vs EXT2 results with rmap14a and testing with contest 0.34 Date: Thu, 19 Sep 2002 01:44:20 -0400 User-Agent: KMail/1.4.6 Cc: sct@redhat.com, akpm@digeo.com, Con Kolivas , linux-kernel@vger.kernel.org References: <200209182118.12701.spstarr@sh0n.net> <200209190016.26609.spstarr@sh0n.net> <20020919061301.GB13929@clusterfs.com> In-Reply-To: <20020919061301.GB13929@clusterfs.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Content-Disposition: inline Message-Id: <200209190144.20212.spstarr@sh0n.net> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1909 Lines: 51 Well, all the tests were done in single user mode =) On September 19, 2002 02:13 am, Andreas Dilger wrote: > On Sep 19, 2002 00:16 -0400, Shawn Starr wrote: > > These results compare EXT3 against EXT2 with rmap using the contest tool > > you can get it at: http://contest.kolivas.net > > > > These tests are from a Athlon MP 2000+ w/ 512MB RAM > > > > noload: > > > > Kernel Time CPU > > 2.4.20-pre7-rmap14a-xfs-uml-shawn12d 259.47 99% > > 2.4.20-pre7-rmap14a-xfs-uml-shawn12d 267.66 97% > > > > process_load: > > > > Kernel Time CPU > > 2.4.20-pre7-rmap14a-xfs-uml-shawn12d 318.91 80% > > 2.4.20-pre7-rmap14a-xfs-uml-shawn12d 324.44 79% > > > > io_halfmem: > > > > Kernel Time CPU > > 2.4.20-pre7-rmap14a-xfs-uml-shawn12d 306.82 87% > > 2.4.20-pre7-rmap14a-xfs-uml-shawn12d 461.74 57% > > > > io full mem: > > > > Kernel Time CPU > > 2.4.20-pre7-rmap14a-xfs-uml-shawn12d 325.39 82% > > 2.4.20-pre7-rmap14a-xfs-uml-shawn12d 411.47 64% > > I don't see this as hugely surprising. ext3 uses more CPU than ext2. > If you are using up the CPU doing other things, then naturally ext3 > will take a longer wall-clock time to complete the same tasks as ext2. > > I know that Andrew has been doing a bunch of work to reduce ext3 CPU > usage/locking/etc., but I think that is all in 2.5 kernels. > > Cheers, Andreas > -- > Andreas Dilger > http://www-mddsp.enel.ucalgary.ca/People/adilger/ > http://sourceforge.net/projects/ext2resize/ - 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/