From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261324AbTIBXui (ORCPT ); Tue, 2 Sep 2003 19:50:38 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261325AbTIBXui (ORCPT ); Tue, 2 Sep 2003 19:50:38 -0400 Received: from dyn-ctb-210-9-241-57.webone.com.au ([210.9.241.57]:19460 "EHLO chimp.local.net") by vger.kernel.org with ESMTP id S261324AbTIBXu0 (ORCPT ); Tue, 2 Sep 2003 19:50:26 -0400 Message-ID: <3F552CBB.1060906@cyberone.com.au> Date: Wed, 03 Sep 2003 09:50:19 +1000 From: Nick Piggin User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4) Gecko/20030827 Debian/1.4-3 X-Accept-Language: en MIME-Version: 1.0 To: "Martin J. Bligh" CC: linux-kernel Subject: Re: [PATCH] Nick's scheduler policy v10 References: <3F5044DC.10305@cyberone.com.au> <1806700000.1062361257@[10.10.2.4]> <1807550000.1062362498@[10.10.2.4]> <3F52A546.9020608@cyberone.com.au> <6860000.1062441073@[10.10.2.4]> <3F544F11.4010700@cyberone.com.au> <127320000.1062514664@[10.10.2.4]> In-Reply-To: <127320000.1062514664@[10.10.2.4]> 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 Martin J. Bligh wrote: >>>Not convinced of that - mm performs worse than mainline for me. >>> >>Well, one of Con's patches caused a lot of idle time on volanomark. >>The reason for the change was unclear. I guess either a fairness or >>wakeup latency change (yes, it was a very scientific process, ahem). >> >>Anyway, in the process of looking at the load balancing, we found >>and fixed a problem (although it might now possibly over balance). >>This did cure most of the idle problems. >> >>So it could just be small changes causing things to go out of whack. >>I will try to get better data after (if ever) the thing is working >>nicely on the desktop. >> > >I think Con and I worked out that the degredations I was seeing >(on kernbench and SDET) were due to (in his words) "my hacks throwing the >cc cpu hogs onto the expired array more frequently". > > This didn't explain the huge idle time increases on volanomark and SPECjbb I think.