From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932231AbWFRPME (ORCPT ); Sun, 18 Jun 2006 11:12:04 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932234AbWFRPME (ORCPT ); Sun, 18 Jun 2006 11:12:04 -0400 Received: from mail02.syd.optusnet.com.au ([211.29.132.183]:135 "EHLO mail02.syd.optusnet.com.au") by vger.kernel.org with ESMTP id S932231AbWFRPMD (ORCPT ); Sun, 18 Jun 2006 11:12:03 -0400 From: Con Kolivas To: Jan Engelhardt Subject: Re: 2.6.17-ck1 Date: Mon, 19 Jun 2006 01:11:54 +1000 User-Agent: KMail/1.9.3 Cc: ck list , linux list References: <200606181736.38768.kernel@kolivas.org> In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200606190111.54914.kernel@kolivas.org> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Monday 19 June 2006 01:06, Jan Engelhardt wrote: > >These are patches designed to improve system responsiveness and > > interactivity. It is configurable to any workload but the default ck > > patch is aimed at the desktop and cks is available with more emphasis on > > serverspace. > > Last time (2.6.17-rc6-ck1), I had a strange experience over the regular > scheduler. When three gccs were competing for time, each of them got a time > window of 1/3 second in which each ran at 99%. > The regular scheduler does it in a way so that each time window is as small > as possible, that is, top shows 33% for each process on low top > udating intervals like 0.1 sec. > This behavior was not observed with 2.6.16-rcX-ck. Were you running them SCHED_IDLEPRIO or in compute mode? They would do that. -- -ck