Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261870AbVCSWIP (ORCPT ); Sat, 19 Mar 2005 17:08:15 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261871AbVCSWIP (ORCPT ); Sat, 19 Mar 2005 17:08:15 -0500 Received: from fire.osdl.org ([65.172.181.4]:33252 "EHLO smtp.osdl.org") by vger.kernel.org with ESMTP id S261870AbVCSWIK (ORCPT ); Sat, 19 Mar 2005 17:08:10 -0500 Date: Sat, 19 Mar 2005 14:07:54 -0800 From: Andrew Morton To: "Martin J. Bligh" Cc: linux-kernel@vger.kernel.org Subject: Re: Scheduling changes in -mm tree Message-Id: <20050319140754.23d76496.akpm@osdl.org> In-Reply-To: <505920000.1111249137@[10.10.2.4]> References: <505920000.1111249137@[10.10.2.4]> X-Mailer: Sylpheed version 0.9.7 (GTK+ 1.2.10; i386-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1735 Lines: 45 "Martin J. Bligh" wrote: > > I don't think these are doing much for performance. Or at least > *something* in your tree isn't ... > > Kernbench: > Elapsed System User CPU > elm3b67 2.6.11 50.24 146.60 1117.61 2516.67 > elm3b67 2.6.11-mm1 52.27 141.14 1099.91 2374.33 > elm3b67 2.6.11-mm2 51.88 142.41 1104.85 2403.67 > elm3b67 2.6.11-mm4 51.23 145.04 1100.70 2431.00 > > (elm3b67 is a 16x x440 ia32 NUMA system + HT) Sounds like the CPU scheduler, yes > Is there an easy way to just test those sched changes alone? Nick has tossed out and redone all the scheduler patches from -mm4, but I assume it's all pretty much the same. At http://www.zip.com.au/~akpm/linux/patches/stuff/mbligh.gz is a rollup (against 2.6.12-rc1) of sched2-fix-schedstats-warning.patch sched2-cleanup-wake_idle.patch sched2-improve-load-balancing-pinned-tasks.patch sched2-reduce-active-load-balancing.patch sched2-fix-smt-scheduling-problems.patch sched2-add-debugging.patch sched2-less-aggressive-idle-balancing.patch sched2-balance-timers.patch sched2-tweak-affine-wakeups.patch sched2-no-aggressive-idle-balancing.patch sched2-balance-on-fork.patch sched2-schedstats-update-for-balance-on-fork.patch sched2-sched-tuning.patch sched2-sched-domain-sysctl.patch add-do_proc_doulonglongvec_minmax-to-sysctl-functions.patch - 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/