Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757058Ab3C3OgH (ORCPT ); Sat, 30 Mar 2013 10:36:07 -0400 Received: from mga14.intel.com ([143.182.124.37]:36513 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756868Ab3C3Ofw (ORCPT ); Sat, 30 Mar 2013 10:35:52 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.87,378,1363158000"; d="scan'208";a="220568221" From: Alex Shi To: mingo@redhat.com, peterz@infradead.org, tglx@linutronix.de, akpm@linux-foundation.org, arjan@linux.intel.com, bp@alien8.de, pjt@google.com, namhyung@kernel.org, efault@gmx.de Cc: vincent.guittot@linaro.org, gregkh@linuxfoundation.org, preeti@linux.vnet.ibm.com, viresh.kumar@linaro.org, linux-kernel@vger.kernel.org, alex.shi@intel.com Subject: [patch v6 07/21] sched: add new sg/sd_lb_stats fields for incoming fork/exec/wake balancing Date: Sat, 30 Mar 2013 22:34:54 +0800 Message-Id: <1364654108-16307-8-git-send-email-alex.shi@intel.com> X-Mailer: git-send-email 1.7.12 In-Reply-To: <1364654108-16307-1-git-send-email-alex.shi@intel.com> References: <1364654108-16307-1-git-send-email-alex.shi@intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1360 Lines: 42 For power aware balancing, we care the sched domain/group's utilization. So add: sd_lb_stats.sd_util and sg_lb_stats.group_util. And want to know which group is busiest but still has capability to handle more tasks, so add: sd_lb_stats.group_leader Signed-off-by: Alex Shi --- kernel/sched/fair.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index a165f52..dda6809 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -4203,6 +4203,10 @@ struct sd_lb_stats { unsigned int busiest_group_weight; int group_imb; /* Is there imbalance in this sd */ + + /* Varibles of power awaring scheduling */ + unsigned int sd_util; /* sum utilization of this domain */ + struct sched_group *group_leader; /* Group which relieves group_min */ }; /* @@ -4218,6 +4222,7 @@ struct sg_lb_stats { unsigned long group_weight; int group_imb; /* Is there an imbalance in the group ? */ int group_has_capacity; /* Is there extra capacity in the group? */ + unsigned int group_util; /* sum utilization of group */ }; /** -- 1.7.12 -- 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/