From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262274AbULOMDb (ORCPT ); Wed, 15 Dec 2004 07:03:31 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262340AbULOMDb (ORCPT ); Wed, 15 Dec 2004 07:03:31 -0500 Received: from ns.virtualhost.dk ([195.184.98.160]:5565 "EHLO virtualhost.dk") by vger.kernel.org with ESMTP id S262274AbULOMD2 (ORCPT ); Wed, 15 Dec 2004 07:03:28 -0500 Date: Wed, 15 Dec 2004 13:03:27 +0100 From: Jens Axboe To: Linux Kernel Subject: [PATCH] Time sliced cfq ver14 Message-ID: <20041215120323.GT3157@suse.de> References: <20041215082004.GO3157@suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20041215082004.GO3157@suse.de> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi, 2.6.10-rc3-mm1 patch: http://www.kernel.org/pub/linux/kernel/people/axboe/patches/v2.6/2.6.10-rc3-mm1/cfq-time-slices-14-2.6.10-rc3-mm1.gz 2.6-BK patch: http://www.kernel.org/pub/linux/kernel/people/axboe/patches/v2.6/2.6.10-rc3/cfq-time-slices-14.gz Changes: - Fix leak of queue - Better balance when to preempt. On 8 client read workload, aggregate bandwidth would take a few seconds to build up, due to initial massive preempt generation more seeks than it should. Priority check was also reverse which showed bad results on multi-prio work loads. - Fix reversed priority check in preemption check, oops. -- Jens Axboe