From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S275270AbTHGKJ6 (ORCPT ); Thu, 7 Aug 2003 06:09:58 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S275273AbTHGKJ6 (ORCPT ); Thu, 7 Aug 2003 06:09:58 -0400 Received: from ns.virtualhost.dk ([195.184.98.160]:35018 "EHLO virtualhost.dk") by vger.kernel.org with ESMTP id S275270AbTHGKJR (ORCPT ); Thu, 7 Aug 2003 06:09:17 -0400 Date: Thu, 7 Aug 2003 12:09:03 +0200 From: Jens Axboe To: Pavel Machek Cc: cb-lkml@fish.zetnet.co.uk, kernel list Subject: Re: Disk priority dependend on nice level... Message-ID: <20030807100903.GH858@suse.de> References: <20030806232810.GA1623@elf.ucw.cz> <20030807055754.GP7982@suse.de> <20030807100104.GA166@elf.ucw.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030807100104.GA166@elf.ucw.cz> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Aug 07 2003, Pavel Machek wrote: > Hi! > > > > I ported `subj` to 2.6.0-test2. I do not yet have idea if it works, > > > but it compiles ;-). > > > > This wont do much, you might as well forget it. Disk priorities is far > > more work than you appear to think :) > > This was not my patch, I only ported it. > > I'm not heading for "perfect" disk priorities (not now :-), but having > something with at least measurable effect would be nice. > > For a start "niced processes get starved during I/O" should do the > trick. (And it would help my lingvistics workloads). Well it just cannot work in any sort of useful way like this, I think the patch is pretty useless... -- Jens Axboe