From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261959AbTJDJML (ORCPT ); Sat, 4 Oct 2003 05:12:11 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261963AbTJDJML (ORCPT ); Sat, 4 Oct 2003 05:12:11 -0400 Received: from dyn-ctb-203-221-74-2.webone.com.au ([203.221.74.2]:3084 "EHLO chimp.local.net") by vger.kernel.org with ESMTP id S261959AbTJDJMG (ORCPT ); Sat, 4 Oct 2003 05:12:06 -0400 Message-ID: <3F7E8EC0.7080008@cyberone.com.au> Date: Sat, 04 Oct 2003 19:11:28 +1000 From: Nick Piggin User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4) Gecko/20030827 Debian/1.4-3 X-Accept-Language: en MIME-Version: 1.0 To: Tom Sightler , Con Kolivas CC: LKML Subject: Re: Problems caused by scheduler tweaks in 2.6.0-test6? References: <1065188297.2660.17.camel@iso-8590-lx.zeusinc.com> In-Reply-To: <1065188297.2660.17.camel@iso-8590-lx.zeusinc.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Did you see this Con? By the way Tom, I have my scheduler patch available for test6 here: http://www.kerneltrap.org/~npiggin/v15a/sched-rollup-v15a-260t6.gz Tom Sightler wrote: >Hi All, > >Over the last few months I have tested many different scheduler tweaks >mostly by testing the -mm kernels and also by applying Nick's patches >against vanilla kernels. Up until recently I have been very happy with >2.6.0-test5 with Nick's scheduler patches. > >Then I decided to try 2.6.0-test6 which seems to include a lot of Con's >work and, while overall this seems nice, I'm having two relatively >serious side effects that seem to be related to this inclusion. > >1. VMware performance varies wildly. I can't put my finger on this >exact issue, but I have found as way to repeatably trigger bad >performance. When running VMware in fullscreen mode, enable window >animation and repeatedly minimize/maximize a window. Under 2.4.x and >2.6.0-test5 w/Nick's patches this process runs reasonably smooth, >although noticably slower than native speed. With stock 2.6.0-test6 >after only a few seconds the minimize/maximize animiation slows to a >complete crawl, take 20+ seconds to complete the minimize opertaion. >I've tried tuning VMware with priorities but no luck. > >2. I also use Wine to run various Windows programs on occasion, >particularly Outlook 2000 (mainly when attempting to help other running >this application on Windows). The program runs fine, but always hangs >on exit. I didn't originally think this was related to the scheduler, >but interestingly, after applying Nick's patches to 2.6.0-test6, which >back out Con's changes, this problem goes away. > >Is there any help out there for these type of issues? I know that many >people seem to think these changes make life better, and I'll admidt >that playing MP3's and DVD's is better with these changes, but I'd >rather have my system preform well at other tasks. I would think having >a way to turn off all the fancy interactivity detection would be ideal >but there always seems to be opposition to adding tuning knobs. > >Later, >Tom > > >