From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261510AbULFMLR (ORCPT ); Mon, 6 Dec 2004 07:11:17 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261515AbULFMLR (ORCPT ); Mon, 6 Dec 2004 07:11:17 -0500 Received: from hermine.aitel.hist.no ([158.38.50.15]:34824 "HELO hermine.aitel.hist.no") by vger.kernel.org with SMTP id S261510AbULFMLF (ORCPT ); Mon, 6 Dec 2004 07:11:05 -0500 Message-ID: <41B44E03.8090007@hist.no> Date: Mon, 06 Dec 2004 13:18:11 +0100 From: Helge Hafting User-Agent: Mozilla Thunderbird 0.9 (X11/20041124) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Jens Axboe CC: Robert Love , Kyle Moffett , Con Kolivas , Jeff Sipek , Linux Kernel Subject: Re: [PATCH] Time sliced CFQ #2 References: <20041204104921.GC10449@suse.de> <20041204163948.GA20486@optonline.net> <20041205185844.GF6430@suse.de> <20041206002954.GA28205@optonline.net> <41B3BD0F.6010008@kolivas.org> <20041206022338.GA5472@optonline.net> <41B3C54B.1080803@kolivas.org> <1102310049.6052.123.camel@localhost> <20041206071923.GC10498@suse.de> In-Reply-To: <20041206071923.GC10498@suse.de> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Jens Axboe wrote: >On Mon, Dec 06 2004, Robert Love wrote: > > >> >> (1) separate the two values. we have a scheduling >> priority (distributing the finite resource of >> processor time) and an I/O priority (distributing >> the finite resource of disk bandwidth). >> (2) just have a single value. >> >> > >They are inherently seperate entities, I don't think mixing them up is a >good idea. IO priorities also includes things like attempting to >guarentee disk bandwidth, it isn't always just a 'nice' value. > > Two separate entities is fine. Those who want just one entity can use a "nice wrapper" that sets both simultaneously. Helge Hafting