Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932776Ab3DDCC1 (ORCPT ); Wed, 3 Apr 2013 22:02:27 -0400 Received: from mga03.intel.com ([143.182.124.21]:30857 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932691Ab3DDCCX (ORCPT ); Wed, 3 Apr 2013 22:02:23 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.87,404,1363158000"; d="scan'208";a="280534133" 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, morten.rasmussen@arm.com 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, len.brown@intel.com, rafael.j.wysocki@intel.com, jkosina@suse.cz, clark.williams@gmail.com, tony.luck@intel.com, keescook@chromium.org, mgorman@suse.de, riel@redhat.com Subject: [patch v7 06/21] sched: add new sg/sd_lb_stats fields for incoming fork/exec/wake balancing Date: Thu, 4 Apr 2013 10:00:47 +0800 Message-Id: <1365040862-8390-7-git-send-email-alex.shi@intel.com> X-Mailer: git-send-email 1.7.12 In-Reply-To: <1365040862-8390-1-git-send-email-alex.shi@intel.com> References: <1365040862-8390-1-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 7124244..6b7917b 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/