Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 5 Nov 2001 17:59:12 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 5 Nov 2001 17:59:02 -0500 Received: from vasquez.zip.com.au ([203.12.97.41]:14855 "EHLO vasquez.zip.com.au") by vger.kernel.org with ESMTP id ; Mon, 5 Nov 2001 17:58:53 -0500 Message-ID: <3BE71875.67D5011A@zip.com.au> Date: Mon, 05 Nov 2001 14:53:41 -0800 From: Andrew Morton X-Mailer: Mozilla 4.77 [en] (X11; U; Linux 2.4.14-pre8 i686) X-Accept-Language: en MIME-Version: 1.0 To: Andreas Dilger CC: lkml , ext2-devel@lists.sourceforge.net, constantin.loizides@isg.de Subject: Re: [Ext2-devel] disk throughput In-Reply-To: <3BE647F4.AD576FF2@zip.com.au> <3BE71131.59BA0CFC@zip.com.au>, <3BE71131.59BA0CFC@zip.com.au>; from akpm@zip.com.au on Mon, Nov 05, 2001 at 02:22:41PM -0800 <20011105154145.H3957@lynx.no> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Andreas Dilger wrote: > > On Nov 05, 2001 14:22 -0800, Andrew Morton wrote: > > But I don't know. This is just all bullshit handwaving speculation. > > We need tests. Numbers. Does anyone have source to a filesystem > > aging simulation? The Smith/Seltzer code seems to be off the air. > > There is a guy doing fragmentation testing for reiserfs. It turns > out that (in his tests) reiserfs can get 10x slower as the filesystem > fills up because of intra-file fragmentation. I don't know enough > about reiserfs block/file allocation policy to know how this compares > to ext2 at all. > > See http://www.informatik.uni-frankfurt.de/~loizides/reiserfs/agetest.html > Wow. That looks nice. Unfortunately the tarballs are missing several files. read.cxx, agesystem.cxx, etc. Plus a number of dud links. Constantin, could you please check that the agesystem3 tarball builds OK, maybe put up a new one? Thanks. - - 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/