Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 27 Aug 2002 16:51:32 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 27 Aug 2002 16:51:32 -0400 Received: from mailout03.sul.t-online.com ([194.25.134.81]:33171 "EHLO mailout03.sul.t-online.com") by vger.kernel.org with ESMTP id convert rfc822-to-8bit; Tue, 27 Aug 2002 16:51:26 -0400 Content-Type: text/plain; charset="us-ascii" From: Marc-Christian Petersen To: linux-kernel@vger.kernel.org Subject: Re: VM changes added to performance patches for 2.4.19 Date: Tue, 27 Aug 2002 22:53:56 +0200 X-Mailer: KMail [version 1.4] Organization: WOLK - Working Overloaded Linux Kernel MIME-Version: 1.0 Content-Transfer-Encoding: 8BIT Message-Id: <200208272224.36373.m.c.p@gmx.net> Cc: Bill Davidsen Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1944 Lines: 71 Hi Bill, > ... > against my current production kernel, 2.4.19-ac4. Machine in Athlon > 1400MHz, 1GB RAM, 20+30GB WD disks. > ... > Then I did my nightly backup of a scanned documentation project, making a > CD image from the scans, currently ~570MB. I was on ck3-aa, and I said > "self, that seemed pretty fast!" So I rebooted cold and tried the mkisofs > with both kernels, twice each. > 2.4.19-ac4 2.4.19-ck3-aa > mkisofs 570MB 2:05 1:14 with WOLK v3.6 and only ONE harddisk drive: root@codeman:[/] # du -skh /home 605M /home root@codeman:[/] # find /home|wc -l 7384 root@codeman:[/] # time mkisofs -o /delme.iso -allow-multidot -iso-level 3 -J -max-iso9660-filenames -U -R /home ... real 1m12.872s user 0m1.840s sys 0m10.800s with one big file: root@codeman:[/] # du -skh /home/onebigfile.delme 620M /home root@codeman:[/] # time mkisofs -o /delme.iso -allow-multidot -iso-level 3 -J -max-iso9660-filenames -U -R /home/onebigfile.delme ... real 0m35.676s user 0m1.180s sys 0m10.740s :-) Anyway, I also tested the patchset from Con, both, with -aa VM and -rmap VM and I must say, -rmap is much slower than -aa VM. Testmashine: Celeron 800MHz 256MB RAM 1x Seagate 30GB running in UDMA4 (ATA66) mode Filesystem: ext3, data=ordered I think with your mashine this could be a bit faster also ;) -- Kind regards Marc-Christian Petersen http://sourceforge.net/projects/wolk PGP/GnuPG Key: 1024D/569DE2E3DB441A16 Fingerprint: 3469 0CF8 CA7E 0042 7824 080A 569D E2E3 DB44 1A16 Key available at www.keyserver.net. Encrypted e-mail preferred. - 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/