From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261930AbTJAFEc (ORCPT ); Wed, 1 Oct 2003 01:04:32 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261931AbTJAFEc (ORCPT ); Wed, 1 Oct 2003 01:04:32 -0400 Received: from dyn-ctb-203-221-73-105.webone.com.au ([203.221.73.105]:51461 "EHLO chimp.local.net") by vger.kernel.org with ESMTP id S261930AbTJAFEb (ORCPT ); Wed, 1 Oct 2003 01:04:31 -0400 Message-ID: <3F7A604F.1060905@cyberone.com.au> Date: Wed, 01 Oct 2003 15:04:15 +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: "Murray J. Root" CC: Andrew Morton , linux-kernel@vger.kernel.org, Con Kolivas Subject: Re: 2.6.0-test6 scheduling(?) oddness References: <20031001032238.GB1416@Master> <20030930215512.1df59be3.akpm@osdl.org> In-Reply-To: <20030930215512.1df59be3.akpm@osdl.org> 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 Andrew Morton wrote: >"Murray J. Root" wrote: > >>The render finishes in the same 30 minutes, then oowriter starts. >> oowriter takes about 3 seconds to load if no rendering is going on. >> > >OpenOffice uses sched_yield() in strange ways which causes it to >get hopelessly starved on 2.6 kernels. I think RH have a fixed version, >but I don't know if that has propagated into the upstream yet. > > OK. Aside from the OpenOffice issue, you still have povray taking 50% longer to complete, which is quite remarkable if its single threaded and nothing else is running. Maybe its not the scheduler change? Anyway, Con will want to know exactly which version of his scheduler you used in test5 to check for possibilities.