From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S268527AbUHRAMS (ORCPT ); Tue, 17 Aug 2004 20:12:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S268530AbUHRAMR (ORCPT ); Tue, 17 Aug 2004 20:12:17 -0400 Received: from gizmo08bw.bigpond.com ([144.140.70.18]:15082 "HELO gizmo08bw.bigpond.com") by vger.kernel.org with SMTP id S268527AbUHRAMM (ORCPT ); Tue, 17 Aug 2004 20:12:12 -0400 Message-ID: <41229ED8.3050304@bigpond.net.au> Date: Wed, 18 Aug 2004 10:12:08 +1000 From: Peter Williams User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 X-Accept-Language: en-us, en MIME-Version: 1.0 To: spaminos-ker@yahoo.com CC: linux-kernel@vger.kernel.org Subject: Re: Scheduler fairness problem on 2.6 series (Attn: Nick Piggin and others) References: <20040817231942.95635.qmail@web13903.mail.yahoo.com> In-Reply-To: <20040817231942.95635.qmail@web13903.mail.yahoo.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 spaminos-ker@yahoo.com wrote: > I tried the actual server with a stress test, and I do eventually get timeouts. > > I tried with what seemed to be the best setup earlier: > pb mode > max_ia_bonus set to 0 > > I tried several values for base_promotion_interval but the system eventually > times out after a few hours (it's still better than it used to be, with a stock > kernel, it timeouts in less than an hour). Could you try it in "pb" mode with both max_ia_bonus and max_tpt_bonus set to zero? That will disable all "priority" fiddling and tasks should just round robin at a priority determined solely by their "nice" value and since (according to your earlier mail) all the daemons have the same "nice" value they should just round robin with each other. Thanks Peter -- Peter Williams pwil3058@bigpond.net.au "Learning, n. The kind of ignorance distinguishing the studious." -- Ambrose Bierce