From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755786AbYJQNhH (ORCPT ); Fri, 17 Oct 2008 09:37:07 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754474AbYJQNg4 (ORCPT ); Fri, 17 Oct 2008 09:36:56 -0400 Received: from mx2.mail.elte.hu ([157.181.151.9]:48945 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754477AbYJQNgz (ORCPT ); Fri, 17 Oct 2008 09:36:55 -0400 Date: Fri, 17 Oct 2008 15:36:45 +0200 From: Ingo Molnar To: Mike Galbraith Cc: Peter Zijlstra , LKML Subject: Re: [patchlet] sched: minor fast-path overhead reduction Message-ID: <20081017133645.GB28600@elte.hu> References: <1224250401.5226.7.camel@marge.simson.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1224250401.5226.7.camel@marge.simson.net> User-Agent: Mutt/1.5.18 (2008-05-17) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.1 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.1 required=5.9 tests=BAYES_05,DNS_FROM_SECURITYSAGE autolearn=no SpamAssassin version=3.2.3 -1.1 BAYES_05 BODY: Bayesian spam probability is 1 to 5% [score: 0.0495] 0.0 DNS_FROM_SECURITYSAGE RBL: Envelope sender in blackholes.securitysage.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Mike Galbraith wrote: > Greetings, > > 103638d added a bit of avoidable overhead to the fast-path. > > Use sysctl_sched_min_granularity instead of sched_slice() to restrict buddy wakeups. > > Signed-off-by: Mike Galbraith applied to tip/sched/urgent, thanks Mike! Ingo