Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753638Ab0GZQPR (ORCPT ); Mon, 26 Jul 2010 12:15:17 -0400 Received: from moutng.kundenserver.de ([212.227.126.187]:55370 "EHLO moutng.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752794Ab0GZQPM (ORCPT ); Mon, 26 Jul 2010 12:15:12 -0400 Date: Mon, 26 Jul 2010 18:15:00 +0200 From: Heinz Diehl To: Vivek Goyal Cc: linux-kernel@vger.kernel.org, jaxboe@fusionio.com, nauman@google.com, dpshah@google.com, guijianfeng@cn.fujitsu.com, jmoyer@redhat.com, czoccolo@gmail.com, Christoph Hellwig Subject: Re: [RFC PATCH] cfq-iosched: IOPS mode for group scheduling and new group_idle tunable Message-ID: <20100726161500.GA8721@fritha.org> References: <1279834172-4227-1-git-send-email-vgoyal@redhat.com> <20100723140343.GA8478@fancy-poultry.org> <20100723141303.GB13104@redhat.com> <20100723145631.GA8844@fancy-poultry.org> <20100723183720.GD13104@redhat.com> <20100724080613.GA6554@fancy-poultry.org> <20100726134329.GB12449@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100726134329.GB12449@redhat.com> X-Accept-Language: no,dk,se,en,de Organization: private site X-OpenPGP-KeyID: 0xA9353F12 X-OpenPGP-Fingerprint: C67E 9A93 1033 DF8A 9321 9F90 DC39 B8C3 A935 3F12 X-OpenPGP-URL: http://www.fritha.org/htd.asc User-Agent: Mutt/1.5.20+20100619 (GNU/Linux) X-Provags-ID: V02:K0:DLwHuB/2A6qDl8sEy7y+RvwGuoebIt4somkzFRFJZSz VjmA0bhjEq/ygoN82hFCKPyauhAIJgAZT5AQfgBXi2ApLhQi6E QqGhvcAjQGsmndVpm4+EIzZe+su3F9a6mQoN5rf5UdcfOSTVIv KMDwgEYfZpvj5kYTn2HVCgCzss+Bz3fh5pqetWssmPkc9j1cPO d5I8I33kUZBYnnkv3hF4A== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 830 Lines: 23 On 26.07.2010, Vivek Goyal wrote: > How do you measure it? IOW, are you running something else also on the > desktop in the background. Like a heavy writer etc and then measuring > how interactive desktop feels? I used Linus' "bigfile torture test" in the background: while : ; do time sh -c "dd if=/dev/zero of=bigfile bs=8M count=256 ; sync; rm bigfile"; done and Theodore Tso's "fsync-tester" to benchmark interactivity. Didn't save any results, wasn't expecting that this could be of any further interest (but can run the tests one more time, if desired). Thanks, Heinz. -- 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/