From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756122Ab0CLDYX (ORCPT ); Thu, 11 Mar 2010 22:24:23 -0500 Received: from mail.windriver.com ([147.11.1.11]:48998 "EHLO mail.windriver.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755194Ab0CLDYW (ORCPT ); Thu, 11 Mar 2010 22:24:22 -0500 Date: Fri, 12 Mar 2010 11:23:33 +0800 From: Yong Zhang To: mingo@redhat.com, hpa@zytor.com, linux-kernel@vger.kernel.org, a.p.zijlstra@chello.nl, efault@gmx.de, tglx@linutronix.de, mingo@elte.hu Cc: linux-tip-commits@vger.kernel.org Subject: Re: [tip:sched/core] sched: Remove AFFINE_WAKEUPS feature Message-ID: <20100312032333.GA13021@windriver.com> Reply-To: Yong Zhang References: <1268301890.6785.50.camel@marge.simson.net> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.20 (2009-06-14) X-OriginalArrivalTime: 12 Mar 2010 03:23:35.0579 (UTC) FILETIME=[6665EEB0:01CAC193] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Mar 11, 2010 at 06:33:38PM +0000, tip-bot for Mike Galbraith wrote: > Commit-ID: beac4c7e4a1cc6d57801f690e5e82fa2c9c245c8 > Gitweb: http://git.kernel.org/tip/beac4c7e4a1cc6d57801f690e5e82fa2c9c245c8 > Author: Mike Galbraith > AuthorDate: Thu, 11 Mar 2010 17:17:20 +0100 > Committer: Ingo Molnar > CommitDate: Thu, 11 Mar 2010 18:32:53 +0100 > > sched: Remove AFFINE_WAKEUPS feature > > Disabling affine wakeups is too horrible to contemplate. Remove the feature flag. AFFINE_WAKEUPS is still left in sched_feature.h From: Yong Zhang Date: Fri, 12 Mar 2010 11:14:26 +0800 Subject: [PATCH] sched: clean AFFINE_WAKEUPS feature complementary work to commit beac4c7e4a1cc6d57801f690e5e82fa2c9c245c8 Signed-off-by: Yong Zhang --- kernel/sched_features.h | 8 -------- 1 files changed, 0 insertions(+), 8 deletions(-) diff --git a/kernel/sched_features.h b/kernel/sched_features.h index 83c66e8..2137ac0 100644 --- a/kernel/sched_features.h +++ b/kernel/sched_features.h @@ -17,14 +17,6 @@ SCHED_FEAT(START_DEBIT, 1) SCHED_FEAT(WAKEUP_PREEMPT, 1) /* - * Based on load and program behaviour, see if it makes sense to place - * a newly woken task on the same cpu as the task that woke it -- - * improve cache locality. Typically used with SYNC wakeups as - * generated by pipes and the like, see also SYNC_WAKEUPS. - */ -SCHED_FEAT(AFFINE_WAKEUPS, 1) - -/* * Prefer to schedule the task we woke last (assuming it failed * wakeup-preemption), since its likely going to consume data we * touched, increases cache locality. -- 1.6.3.3