Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263599AbTIBIEq (ORCPT ); Tue, 2 Sep 2003 04:04:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263601AbTIBIEp (ORCPT ); Tue, 2 Sep 2003 04:04:45 -0400 Received: from dyn-ctb-203-221-73-133.webone.com.au ([203.221.73.133]:12294 "EHLO chimp.local.net") by vger.kernel.org with ESMTP id S263599AbTIBIEn (ORCPT ); Tue, 2 Sep 2003 04:04:43 -0400 Message-ID: <3F544F11.4010700@cyberone.com.au> Date: Tue, 02 Sep 2003 18:04:33 +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]> In-Reply-To: <6860000.1062441073@[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 Content-Length: 1438 Lines: 39 Martin J. Bligh wrote: >>>>Kernbench: (make -j vmlinux, maximal tasks) >>>> Elapsed System User CPU >>>> 2.6.0-test4 45.87 116.92 571.10 1499.00 >>>> 2.6.0-test4-nick10 46.91 114.03 584.16 1489.25 >>>> >>>> >>>Actually, now looks like you have significantly more idle time, so perhaps >>>the cross-cpu (or cross-node) balancing isn't agressive enough: >>> >>> >>Yeah, there is a patch for this in mm that is not in mine. It should >>help both mine and mainline though... >> > >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. - 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/