From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755852Ab0C3XJI (ORCPT ); Tue, 30 Mar 2010 19:09:08 -0400 Received: from kroah.org ([198.145.64.141]:48469 "EHLO coco.kroah.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755723Ab0C3XJB (ORCPT ); Tue, 30 Mar 2010 19:09:01 -0400 X-Mailbox-Line: From linux@linux.site Tue Mar 30 15:49:51 2010 Message-Id: <20100330224950.266515228@linux.site> User-Agent: quilt/0.47-14.9 Date: Tue, 30 Mar 2010 15:48:37 -0700 From: Greg KH To: linux-kernel@vger.kernel.org, stable@kernel.org Cc: stable-review@kernel.org, torvalds@linux-foundation.org, akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, Mike Galbraith , Peter Zijlstra , Ingo Molnar , Greg Kroah-Hartman Subject: [17/45] sched: fine-tune SD_MC_INIT In-Reply-To: <20100330230410.GA28712@kroah.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 2.6.27-stable review patch. If anyone has any objections, please let us know. ------------------ From: Mike Galbraith commit 14800984706bf6936bbec5187f736e928be5c218 upstream. Tune SD_MC_INIT the same way as SD_CPU_INIT: unset SD_BALANCE_NEWIDLE, and set SD_WAKE_BALANCE. This improves vmark by 5%: vmark 132102 125968 125497 messages/sec avg 127855.66 .984 vmark 139404 131719 131272 messages/sec avg 134131.66 1.033 Signed-off-by: Mike Galbraith Acked-by: Peter Zijlstra Signed-off-by: Ingo Molnar Signed-off-by: Greg Kroah-Hartman --- include/linux/topology.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/include/linux/topology.h +++ b/include/linux/topology.h @@ -120,10 +120,10 @@ void arch_update_cpu_topology(void); .wake_idx = 1, \ .forkexec_idx = 1, \ .flags = SD_LOAD_BALANCE \ - | SD_BALANCE_NEWIDLE \ | SD_BALANCE_FORK \ | SD_BALANCE_EXEC \ | SD_WAKE_AFFINE \ + | SD_WAKE_BALANCE \ | SD_SHARE_PKG_RESOURCES\ | BALANCE_FOR_MC_POWER, \ .last_balance = jiffies, \