Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751797AbZI1FzV (ORCPT ); Mon, 28 Sep 2009 01:55:21 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751390AbZI1FzV (ORCPT ); Mon, 28 Sep 2009 01:55:21 -0400 Received: from mail.gmx.net ([213.165.64.20]:58987 "HELO mail.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1751016AbZI1FzU (ORCPT ); Mon, 28 Sep 2009 01:55:20 -0400 X-Authenticated: #14349625 X-Provags-ID: V01U2FsdGVkX182QdpGsek2sTMxx8deY1d6ofKsk1DdXJw0A7Xa64 aGX5Vj7pYSdN3+ Subject: Re: IO scheduler based IO controller V10 From: Mike Galbraith To: Jens Axboe Cc: 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, torvalds@linux-foundation.org, mingo@elte.hu, riel@redhat.com In-Reply-To: <1254110648.7683.3.camel@marge.simson.net> References: <1253820332-10246-1-git-send-email-vgoyal@redhat.com> <4ABC28DE.7050809@datenparkplatz.de> <20090925202636.GC15007@redhat.com> <1253976676.7005.40.camel@marge.simson.net> <1254034500.7933.6.camel@marge.simson.net> <20090927164235.GA23126@kernel.dk> <1254075359.7354.66.camel@marge.simson.net> <1254110648.7683.3.camel@marge.simson.net> Content-Type: text/plain Date: Mon, 28 Sep 2009 07:55:15 +0200 Message-Id: <1254117315.6809.9.camel@marge.simson.net> Mime-Version: 1.0 X-Mailer: Evolution 2.24.1.1 Content-Transfer-Encoding: 7bit X-Y-GMX-Trusted: 0 X-FuHaFi: 0.67 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2120 Lines: 41 P.S. On Mon, 2009-09-28 at 06:04 +0200, Mike Galbraith wrote: > - = virgin tip v2.6.31-10215-ga3c9602 > + = with patchlet > Avg > dd pre 67.4 70.9 65.4 68.9 66.2 67.7- > 65.9 68.5 69.8 65.2 65.8 67.0- Avg > 70.4 70.3 65.1 66.4 70.1 68.4- 67.7- > 73.1 64.6 65.3 65.3 64.9 66.6+ 65.6+ .968 > 63.8 67.9 65.2 65.1 64.4 65.2+ > 64.9 66.3 64.1 65.2 64.8 65.0+ > perf stat 8.66 16.29 9.65 14.88 9.45 11.7- > 15.36 9.71 15.47 10.44 12.93 12.7- > 10.55 15.11 10.22 15.35 10.32 12.3- 12.2- > 9.87 7.53 10.62 7.51 9.95 9.0+ 9.1+ .745 > 7.73 10.12 8.19 11.87 8.07 9.1+ > 11.04 7.62 10.14 8.13 10.23 9.4+ > dd post 63.4 60.5 66.7 64.5 67.3 64.4- > 64.4 66.8 64.3 61.5 62.0 63.8- > 63.8 64.9 66.2 65.6 66.9 65.4- 64.5- > 60.9 63.4 60.2 63.4 65.5 62.6+ 61.8+ .958 > 63.3 59.9 61.9 62.7 61.2 61.8+ > 60.1 63.7 59.5 61.5 60.6 61.0+ Deadline and noop fsc^W are less than wonderful choices for this load. perf stat 12.82 7.19 8.49 5.76 9.32 anticipatory 16.24 175.82 154.38 228.97 147.16 noop 43.23 57.39 96.13 148.25 180.09 deadline 28.65 167.40 195.95 183.69 178.61 deadline v2.6.27.35 -Mike -- 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/