Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757554AbXJ3JnU (ORCPT ); Tue, 30 Oct 2007 05:43:20 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754223AbXJ3JnM (ORCPT ); Tue, 30 Oct 2007 05:43:12 -0400 Received: from brick.kernel.dk ([87.55.233.238]:1821 "EHLO kernel.dk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752359AbXJ3JnL (ORCPT ); Tue, 30 Oct 2007 05:43:11 -0400 Date: Tue, 30 Oct 2007 10:40:40 +0100 From: Jens Axboe To: Aaron Carroll Cc: linux-kernel@vger.kernel.org, Peter Chubb Subject: Re: [PATCH 0/3] Deadline iosched: Fix batching algorithm Message-ID: <20071030094040.GK4993@kernel.dk> References: <4726AD03.2080908@gelato.unsw.edu.au> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4726AD03.2080908@gelato.unsw.edu.au> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 805 Lines: 27 On Tue, Oct 30 2007, Aaron Carroll wrote: > Hi Jens, > > The following patches correct some issues with the deadline I/O > scheduler and its batching algorithm. > > Patch 1 is a simple function factorisation. > Patch 2 fixes a missing batch count reset, making the behaviour > closer to that implied by the documentation. 1+2 are no brainers, applied. > Patch 3 changes batch start points to resolve a disparity in > latency and bandwidth between high- and low-sector requests. This one makes a lot of sense, applied as well. Thanks! -- Jens Axboe - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/