From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265921AbUBCHxU (ORCPT ); Tue, 3 Feb 2004 02:53:20 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265922AbUBCHxU (ORCPT ); Tue, 3 Feb 2004 02:53:20 -0500 Received: from [212.5.174.154] ([212.5.174.154]:60082 "EHLO zelcom.ru") by vger.kernel.org with ESMTP id S265921AbUBCHxS (ORCPT ); Tue, 3 Feb 2004 02:53:18 -0500 Date: Tue, 03 Feb 2004 10:52:17 +0300 Message-ID: <87r7xcy4zy.wl@canopus.ns.zel.ru> From: Samium Gromoff To: Andrew Morton Cc: Samium Gromoff , linux-kernel@vger.kernel.org, philip@codematters.co.uk Subject: Re: 2.6.1 slower than 2.4, smp/scsi/sw-raid/reiserfs In-Reply-To: <20040202230745.237dd5b6.akpm@osdl.org> References: <87smhsy7n4.wl@canopus.ns.zel.ru> <20040202230745.237dd5b6.akpm@osdl.org> User-Agent: Wanderlust/2.10.1 (Watching The Wheels) SEMI/1.14.5 (Awara-Onsen) FLIM/1.14.5 (Demachiyanagi) APEL/10.6 Emacs/21.3 (i386-pc-linux-gnu) MULE/5.0 (SAKAKI) MIME-Version: 1.0 (generated by SEMI 1.14.5 - "Awara-Onsen") Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org At Mon, 2 Feb 2004 23:07:45 -0800, Andrew Morton wrote: > > Samium Gromoff wrote: > > > > > > > > The machine is a dual P3 450MHz, 512MB, aic7xxx, 2 disk RAID-0 and > > > > ReiserFS. It's a few years old and has always run Linux, most > > > > recently 2.4.24. I decided to try 2.6.1 and the performance is > > > > disappointing. > > > > > > 2.6 has a few performance problems under heavy pageout at present. Nick > > > Piggin has some patches which largely fix it up. > > > > I`m sorry, but this is misguiding. 2.6 does not have a few performance > > problems under heavy pageout. > > > > As you have frequently and somewhat redundantly reminded us. Right. I`m rather emotional about this... Kind of hard seeing the all starry and shiny 2.6 going down the toilet on my little server with 16M RAM. > Perhaps you could test Nick's patches. They are at > > http://www.kerneltrap.org/~npiggin/vm/ > > Against 2.6.2-rc2-mm2. First revert vm-rss-limit-enforcement.patch, then > apply those three. Hmmm, i`d prefer plain 2.6, but i`ll try it anyway. regards, Samium Gromoff