Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760038AbXKTSGy (ORCPT ); Tue, 20 Nov 2007 13:06:54 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753273AbXKTSGp (ORCPT ); Tue, 20 Nov 2007 13:06:45 -0500 Received: from smtp-outbound-1.vmware.com ([65.113.40.141]:34728 "EHLO smtp-outbound-1.vmware.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752862AbXKTSGo (ORCPT ); Tue, 20 Nov 2007 13:06:44 -0500 Date: Tue, 20 Nov 2007 10:06:43 -0800 From: Micah Dowty To: Ingo Molnar Cc: Dmitry Adamushko , Christoph Lameter , Kyle Moffett , Cyrus Massoumi , LKML Kernel , Andrew Morton , Mike Galbraith , Paul Menage , Peter Williams Subject: Re: High priority tasks break SMP balancer? Message-ID: <20071120180643.GD4736@vmware.com> References: <20071116060700.GD16273@elte.hu> <20071116221404.GC31527@vmware.com> <20071117010352.GA13666@vmware.com> <20071119185116.GA28173@vmware.com> <20071119230516.GC4736@vmware.com> <20071120055755.GE20436@elte.hu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20071120055755.GE20436@elte.hu> User-Agent: Mutt/1.5.16 (2007-06-09) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1129 Lines: 31 On Tue, Nov 20, 2007 at 06:57:55AM +0100, Ingo Molnar wrote: > > * Micah Dowty wrote: > > > > this one is being triggered whenever a cpu becomes idle (schedule() > > > --> idle_balance() --> load_balance_newidle()). > > > > > > (this flag is a bit #1 == 2) > > > > > > cat /proc/sys/kernel/sched_domain/cpu0/domain0/flags > > > > Hmm. I don't have this file on my system: > > > > root@micah-64:/proc/sys/kernel/sched_domain/cpu0/domain0# ls > > busy_factor busy_idx forkexec_idx idle_idx imbalance_pct max_interval min_interval newidle_idx wake_idx > > root@micah-64:/proc/sys/kernel/sched_domain/cpu0/domain0# uname -a > > Linux micah-64 2.6.23.1 #1 SMP Fri Nov 2 12:25:47 PDT 2007 x86_64 GNU/Linux > > > > Is there a config option I'm missing? > > yes, CONFIG_SCHED_DEBUG. I have that one. I even posted the /proc/sched_debug output :) --Micah - 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/