From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261932AbTJAFKS (ORCPT ); Wed, 1 Oct 2003 01:10:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261938AbTJAFKR (ORCPT ); Wed, 1 Oct 2003 01:10:17 -0400 Received: from stroke.of.genius.brain.org ([206.80.113.1]:29921 "EHLO stroke.of.genius.brain.org") by vger.kernel.org with ESMTP id S261932AbTJAFKN (ORCPT ); Wed, 1 Oct 2003 01:10:13 -0400 Date: Wed, 1 Oct 2003 01:10:08 -0400 From: "Murray J. Root" To: linux-kernel@vger.kernel.org Subject: Re: 2.6.0-test6 scheduling(?) oddness Message-ID: <20031001051008.GD1416@Master> Mail-Followup-To: linux-kernel@vger.kernel.org References: <20031001032238.GB1416@Master> <20030930215512.1df59be3.akpm@osdl.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030930215512.1df59be3.akpm@osdl.org> User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Sep 30, 2003 at 09:55:12PM -0700, 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. > > So... Don't worry about OpenOffice too much. Is the problem reproducible > with other applications? Nope - even tried it with KDE apps. Write it off to OpenOffice, not test6. That doesn't explain the major time increase of the render, though. 200% for 2.5.65 vs 2.6.0-test6 or 150% for 2.6.0-test5 vs 2.6.0-test6 is a bit extreme. -- Murray J. Root