From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S268922AbUIMULV (ORCPT ); Mon, 13 Sep 2004 16:11:21 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S268937AbUIMULV (ORCPT ); Mon, 13 Sep 2004 16:11:21 -0400 Received: from web13911.mail.yahoo.com ([216.136.174.59]:20638 "HELO web13911.mail.yahoo.com") by vger.kernel.org with SMTP id S268922AbUIMUJm (ORCPT ); Mon, 13 Sep 2004 16:09:42 -0400 Message-ID: <20040913200941.83688.qmail@web13911.mail.yahoo.com> Date: Mon, 13 Sep 2004 13:09:41 -0700 (PDT) From: Reply-To: spaminos-ker@yahoo.com Subject: Re: Scheduler fairness problem on 2.6 series (Attn: Nick Piggin and others) To: Peter Williams Cc: Lee Revell , linux-kernel In-Reply-To: <413131DD.4060604@bigpond.net.au> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --- Peter Williams wrote: >> Nicolas, >> I'll generate a combined patch and let you know when it's ready. In >> the mean time, could you try increasing the "base_promotion_interval" to >> about twice the time slice size? > >A patch for the ZAPHOD compiler on top of the R5 voluntary preemption >patches is available at: > > > >Due to the fact that the R5 patch requires the bk12 patch to be applied >to 2.6.9-rc1 before it is applied, generating a combined patch resulted >in a very large patch (and lots of duplicated effort) so this patch is >not a combined patch but is relative to a 2.6.9-rc1 kernel with bk12 and > voluntary preempt R5 patches already applied. I have been running for several days with this patched kernel, with 0 for max_ia_bonus and 0 for max_tpt_bonus in "pb" mode and there are no slow downs at all: my system is running very steadily now! So it seems that we are getting somewhere!! Nicolas