From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S271743AbTHRM6l (ORCPT ); Mon, 18 Aug 2003 08:58:41 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S271744AbTHRM6l (ORCPT ); Mon, 18 Aug 2003 08:58:41 -0400 Received: from c210-49-248-224.thoms1.vic.optusnet.com.au ([210.49.248.224]:5250 "EHLO mail.kolivas.org") by vger.kernel.org with ESMTP id S271743AbTHRM6j (ORCPT ); Mon, 18 Aug 2003 08:58:39 -0400 From: Con Kolivas To: Max Hailperin Subject: Re: [RFC] Re: Blender profiling-1 O16.2int Date: Mon, 18 Aug 2003 23:05:19 +1000 User-Agent: KMail/1.5.3 Cc: linux-kernel@vger.kernel.org References: <20030818110001.6564.64238.Mailman@lists.us.dell.com> <200308181252.h7ICqZh8003767@mccormic.mcs.gac.edu> In-Reply-To: <200308181252.h7ICqZh8003767@mccormic.mcs.gac.edu> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200308182305.19339.kernel@kolivas.org> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 18 Aug 2003 22:52, Max Hailperin wrote: > ... I do have some ideas about how to progress with this (some Mike > has suggested to me previously), but so far most of them involve > some detriment to the interactive performance on other apps. So I'm > appealing to others for ideas. > I suggest you put a small limit on the number of times that a task can > be requeued onto the active array before it needs to go to the expired > array. -max Thanks; I appreciate your comments. That's what's currently in place at the moment, and the lower the number of requeues the less it starves... Unfortunately, this also means that the shorter it takes a real interactive task to expire as well. This is the theme I'm currently working on though, as the starver gets rescheduled ahead of anything else and I've developed a way of letting other tasks sneak in ahead if it starts doing that. It needs more tuning but seems to work so far. Cheers, Con