From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263796AbTIBO6z (ORCPT ); Tue, 2 Sep 2003 10:58:55 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263799AbTIBO6y (ORCPT ); Tue, 2 Sep 2003 10:58:54 -0400 Received: from obsidian.spiritone.com ([216.99.193.137]:2764 "EHLO obsidian.spiritone.com") by vger.kernel.org with ESMTP id S263796AbTIBO6i (ORCPT ); Tue, 2 Sep 2003 10:58:38 -0400 Date: Tue, 02 Sep 2003 07:57:46 -0700 From: "Martin J. Bligh" To: Nick Piggin cc: linux-kernel Subject: Re: [PATCH] Nick's scheduler policy v10 Message-ID: <127320000.1062514664@[10.10.2.4]> In-Reply-To: <3F544F11.4010700@cyberone.com.au> 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> X-Mailer: Mulberry/2.2.1 (Linux/x86) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org >> 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". M. - 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/ >> 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". M.