From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754628AbZHTNpS (ORCPT ); Thu, 20 Aug 2009 09:45:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754573AbZHTNpR (ORCPT ); Thu, 20 Aug 2009 09:45:17 -0400 Received: from va3ehsobe002.messaging.microsoft.com ([216.32.180.12]:53446 "EHLO VA3EHSOBE002.bigfish.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754232AbZHTNpP (ORCPT ); Thu, 20 Aug 2009 09:45:15 -0400 X-SpamScore: 5 X-BigFish: VPS5(z34a4jzzz1202hzzz32i6bh203h43j62h) X-Spam-TCS-SCL: 1:0 X-WSS-ID: 0KOOGV7-01-1D7-02 X-M-MSG: Date: Thu, 20 Aug 2009 15:45:06 +0200 From: Andreas Herrmann To: Peter Zijlstra , Ingo Molnar CC: linux-kernel@vger.kernel.org Subject: [PATCH 14/15] sched: Conditionally limit __cpu_power when child sched domain has type NODE Message-ID: <20090820134506.GC29327@alberich.amd.com> References: <20090820131243.GO29327@alberich.amd.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20090820131243.GO29327@alberich.amd.com> User-Agent: Mutt/1.5.16 (2007-06-09) X-OriginalArrivalTime: 20 Aug 2009 13:45:06.0929 (UTC) FILETIME=[6D815E10:01CA219C] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org We need this in case of performance policy. All sched_groups in child's parent domain (MN in this case) should be limited such that tasks are balanced among these sched_groups. Signed-off-by: Andreas Herrmann --- kernel/sched.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/sched.c b/kernel/sched.c index 0c950dc..ab88d88 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -8555,11 +8555,11 @@ static void init_sched_groups_power(int cpu, struct sched_domain *sd) */ if (!(sd->flags & SD_POWERSAVINGS_BALANCE) && ((child->flags & - (SD_SHARE_CPUPOWER | SD_SHARE_PKG_RESOURCES)))) { + (SD_SHARE_CPUPOWER | SD_SHARE_PKG_RESOURCES)) || + (child->level == SD_LV_NODE))) { sd->groups->__cpu_power = 0; sg_inc_cpu_power(sd->groups, SCHED_LOAD_SCALE); } - } /* -- 1.6.0.4