From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S272405AbTHEDYO (ORCPT ); Mon, 4 Aug 2003 23:24:14 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S272413AbTHEDYO (ORCPT ); Mon, 4 Aug 2003 23:24:14 -0400 Received: from dyn-ctb-210-9-244-254.webone.com.au ([210.9.244.254]:12300 "EHLO chimp.local.net") by vger.kernel.org with ESMTP id S272405AbTHEDYL (ORCPT ); Mon, 4 Aug 2003 23:24:11 -0400 Message-ID: <3F2F231C.3030901@cyberone.com.au> Date: Tue, 05 Aug 2003 13:23:08 +1000 From: Nick Piggin User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.3.1) Gecko/20030618 Debian/1.3.1-3 X-Accept-Language: en MIME-Version: 1.0 To: William Lee Irwin III CC: Marc-Christian Petersen , Felipe Alfaro Solana , Con Kolivas , linux kernel mailing list , Andrew Morton Subject: Re: [PATCH] O11int for interactivity References: <200307301038.49869.kernel@kolivas.org> <20030802225513.GE32488@holomorphy.com> <200308030119.47474.m.c.p@wolk-project.de> <200308042106.51676.m.c.p@wolk-project.de> <20030804195335.GK32488@holomorphy.com> <3F2F00B0.9050804@cyberone.com.au> <20030805024103.GM32488@holomorphy.com> <3F2F1F80.7060207@cyberone.com.au> <20030805031341.GN32488@holomorphy.com> In-Reply-To: <20030805031341.GN32488@holomorphy.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org William Lee Irwin III wrote: >On Tue, Aug 05, 2003 at 01:07:44PM +1000, Nick Piggin wrote: > >>Let me know if you come up with anything significant ;) >> > >Well, I was vaguely hoping a useful way to instrument the io stuff >would already be out there. > > Not really. For a process doing blocking reads you could measure the time from when a process submits a read to when it gets the result. I suppose you also need some minimum rate too but I really can't see that being the problem here.