From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760095AbYFXOQZ (ORCPT ); Tue, 24 Jun 2008 10:16:25 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756682AbYFXOQP (ORCPT ); Tue, 24 Jun 2008 10:16:15 -0400 Received: from lsg.lsg.lab.novell.com ([151.155.230.1]:5025 "EHLO lsg.lsg.lab.novell.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759354AbYFXOQN (ORCPT ); Tue, 24 Jun 2008 10:16:13 -0400 From: Gregory Haskins Subject: [PATCH 3/3] sched: terminate newidle balancing once at least one task has moved over To: mingo@elte.hu, rostedt@goodmis.org, tglx@linutronix.de Cc: linux-kernel@vger.kernel.org, peterz@infradead.org, linux-rt-users@vger.kernel.org, ghaskins@novell.com, dbahi@novell.com, npiggin@suse.de Date: Tue, 24 Jun 2008 08:16:12 -0600 Message-ID: <20080624141612.28487.18128.stgit@lsg.lsg.lab.novell.com> In-Reply-To: <20080624141527.28487.77778.stgit@lsg.lsg.lab.novell.com> References: <20080624141527.28487.77778.stgit@lsg.lsg.lab.novell.com> User-Agent: StGIT/0.13 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Inspired by Peter Zijlstra. Signed-off-by: Gregory Haskins --- kernel/sched.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/kernel/sched.c b/kernel/sched.c index e40c575..094a84b 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -2774,6 +2774,10 @@ static int move_tasks(struct rq *this_rq, int this_cpu, struct rq *busiest, max_load_move - total_load_moved, sd, idle, all_pinned, &this_best_prio); class = class->next; + + if (idle == CPU_NEWLY_IDLE && this_rq->nr_running) + break; + } while (class && max_load_move > total_load_moved); return total_load_moved > 0;