Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932080Ab2F1NAG (ORCPT ); Thu, 28 Jun 2012 09:00:06 -0400 Received: from mx1.redhat.com ([209.132.183.28]:25736 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755731Ab2F1M7L (ORCPT ); Thu, 28 Jun 2012 08:59:11 -0400 From: Andrea Arcangeli To: linux-kernel@vger.kernel.org, linux-mm@kvack.org Cc: Hillf Danton , Dan Smith , Peter Zijlstra , Linus Torvalds , Andrew Morton , Thomas Gleixner , Ingo Molnar , Paul Turner , Suresh Siddha , Mike Galbraith , "Paul E. McKenney" , Lai Jiangshan , Bharata B Rao , Lee Schermerhorn , Rik van Riel , Johannes Weiner , Srivatsa Vaddagiri , Christoph Lameter , Alex Shi , Mauricio Faria de Oliveira , Konrad Rzeszutek Wilk , Don Morris , Benjamin Herrenschmidt Subject: [PATCH 23/40] autonuma: sched_set_autonuma_need_balance Date: Thu, 28 Jun 2012 14:56:03 +0200 Message-Id: <1340888180-15355-24-git-send-email-aarcange@redhat.com> In-Reply-To: <1340888180-15355-1-git-send-email-aarcange@redhat.com> References: <1340888180-15355-1-git-send-email-aarcange@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 941 Lines: 27 Invoke autonuma_balance only on the busy CPUs at the same frequency of the CFS load balance. Signed-off-by: Andrea Arcangeli --- kernel/sched/fair.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index dab9bdd..ff288c0 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -4906,6 +4906,9 @@ static void run_rebalance_domains(struct softirq_action *h) rebalance_domains(this_cpu, idle); + if (!this_rq->idle_balance) + sched_set_autonuma_need_balance(); + /* * If this cpu has a pending nohz_balance_kick, then do the * balancing on behalf of the other idle cpus whose ticks are -- 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/