From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755403AbaEEIJM (ORCPT ); Mon, 5 May 2014 04:09:12 -0400 Received: from mga01.intel.com ([192.55.52.88]:46110 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755346AbaEEIJA (ORCPT ); Mon, 5 May 2014 04:09:00 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.97,986,1389772800"; d="scan'208";a="526078672" From: Yuyang Du To: mingo@redhat.com, peterz@infradead.org, rafael.j.wysocki@intel.com, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org Cc: arjan.van.de.ven@intel.com, len.brown@intel.com, alan.cox@intel.com, mark.gross@intel.com, morten.rasmussen@arm.com, vincent.guittot@linaro.org, rajeev.d.muralidhar@intel.com, vishwesh.m.rudramuni@intel.com, nicole.chalhoub@intel.com, ajaya.durg@intel.com, harinarayanan.seshadri@intel.com, yuyang.du@intel.com Subject: [RFC PATCH 08/12 v1] Intercept wakeup/fork/exec balance Date: Mon, 5 May 2014 08:02:48 +0800 Message-Id: <1399248172-13871-9-git-send-email-yuyang.du@intel.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1399248172-13871-1-git-send-email-yuyang.du@intel.com> References: <1399248172-13871-1-git-send-email-yuyang.du@intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Signed-off-by: Yuyang Du --- kernel/sched/fair.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index e7153ff..65f1651 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -4365,9 +4365,16 @@ static int select_idle_sibling(struct task_struct *p, int target) struct sched_domain *sd; struct sched_group *sg; int i = task_cpu(p); +#ifdef CONFIG_WORKLOAD_CONSOLIDATION + int ret; + ret = workload_consolidation_wakeup(i, target); + if (ret < nr_cpu_ids) + return ret; +#else if (idle_cpu(target)) return target; +#endif /* * If the prevous cpu is cache affine and idle, don't be stupid. @@ -4460,7 +4467,7 @@ select_task_rq_fair(struct task_struct *p, int prev_cpu, int sd_flag, int wake_f } while (sd) { - struct sched_group *group; + struct sched_group *group = NULL; int weight; if (!(sd->flags & sd_flag)) { @@ -4468,6 +4475,12 @@ select_task_rq_fair(struct task_struct *p, int prev_cpu, int sd_flag, int wake_f continue; } +#ifdef CONFIG_WORKLOAD_CONSOLIDATION + if (sd->flags & SD_ASYM_CONCURRENCY) + group = workload_consolidation_find_group(sd, p, cpu); + + if (!group) +#endif group = find_idlest_group(sd, p, cpu, sd_flag); if (!group) { sd = sd->child; -- 1.7.9.5