From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755623AbcETCxD (ORCPT ); Thu, 19 May 2016 22:53:03 -0400 Received: from mx2.suse.de ([195.135.220.15]:48063 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755461AbcETCxB (ORCPT ); Thu, 19 May 2016 22:53:01 -0400 Message-ID: <1463712778.3723.13.camel@suse.de> Subject: Re: [RFC][PATCH 8/7] sched/fair: Use utilization distance to filter affine sync wakeups From: Mike Galbraith To: Rik van Riel , Peter Zijlstra , mingo@kernel.org, linux-kernel@vger.kernel.org Cc: clm@fb.com, matt@codeblueprint.co.uk, tglx@linutronix.de, fweisbec@gmail.com Date: Fri, 20 May 2016 04:52:58 +0200 In-Reply-To: <1463694214.16149.36.camel@redhat.com> References: <20160509104807.284575300@infradead.org> <1463550694.4012.7.camel@suse.de> <1463694214.16149.36.camel@redhat.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.16.5 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2016-05-19 at 17:43 -0400, Rik van Riel wrote: > On Wed, 2016-05-18 at 07:51 +0200, Mike Galbraith wrote: > > On Mon, 2016-05-09 at 12:48 +0200, Peter Zijlstra wrote: > > > Hai, > > > > (got some of the frozen variety handy?:) > > > > > here be a semi coherent patch series for the recent > > > select_idle_siblings() > > > tinkering. Happy benchmarking.. > > > > And tinkering on top of your rewrite series... > > > > sched/fair: Use utilization distance to filter affine sync wakeups > > > > Nice. This looks like it could be a lot more robust > than the stuff that was there before. That's the hope. I kinda doubt it'll make any big difference in the real world, but should help some.. wild theory being that the microbenchmarks it definitely does help were based at least in part upon some aspect of real world loads. -Mike