Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753462AbZJCHU6 (ORCPT ); Sat, 3 Oct 2009 03:20:58 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752849AbZJCHU5 (ORCPT ); Sat, 3 Oct 2009 03:20:57 -0400 Received: from mx2.mail.elte.hu ([157.181.151.9]:35568 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752795AbZJCHU5 (ORCPT ); Sat, 3 Oct 2009 03:20:57 -0400 Date: Sat, 3 Oct 2009 09:20:21 +0200 From: Ingo Molnar To: Mike Galbraith Cc: Jens Axboe , Linus Torvalds , Vivek Goyal , Ulrich Lukas , linux-kernel@vger.kernel.org, containers@lists.linux-foundation.org, dm-devel@redhat.com, nauman@google.com, dpshah@google.com, lizf@cn.fujitsu.com, mikew@google.com, fchecconi@gmail.com, paolo.valente@unimore.it, ryov@valinux.co.jp, fernando@oss.ntt.co.jp, jmoyer@redhat.com, dhaval@linux.vnet.ibm.com, balbir@linux.vnet.ibm.com, righi.andrea@gmail.com, m-ikeda@ds.jp.nec.com, agk@redhat.com, akpm@linux-foundation.org, peterz@infradead.org, jmarchan@redhat.com, riel@redhat.com Subject: Re: IO scheduler based IO controller V10 Message-ID: <20091003072021.GB21407@elte.hu> References: <20091002145610.GD31616@kernel.dk> <20091002171129.GG31616@kernel.dk> <20091002172046.GA2376@elte.hu> <20091002172554.GJ31616@kernel.dk> <20091002172842.GA4884@elte.hu> <20091002173732.GK31616@kernel.dk> <1254507215.8667.7.camel@marge.simson.net> <20091002181903.GN31616@kernel.dk> <1254548931.8299.18.camel@marge.simson.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1254548931.8299.18.camel@marge.simson.net> User-Agent: Mutt/1.5.18 (2008-05-17) X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.5 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 854 Lines: 25 * Mike Galbraith wrote: > unsigned int cfq_desktop; > + unsigned int cfq_desktop_dispatch; > - if (cfq_cfqq_idle_window(cfqq) && cfqd->rq_in_driver[BLK_RW_ASYNC]) > + if (cfq_cfqq_idle_window(cfqq) && cfqd->rq_in_driver[BLK_RW_ASYNC]) { > + cfqd->desktop_dispatch_ts = jiffies; > return 0; > + } btw., i hope all those desktop_ things will be named latency_ pretty soon as the consensus seems to be - the word 'desktop' feels so wrong in this context. 'desktop' is a form of use of computers and the implication of good latencies goes far beyond that category of systems. Ingo -- 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/