From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755118AbdKAUVW convert rfc822-to-8bit (ORCPT ); Wed, 1 Nov 2017 16:21:22 -0400 Received: from mout.gmx.net ([212.227.15.18]:58461 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751852AbdKAUVU (ORCPT ); Wed, 1 Nov 2017 16:21:20 -0400 Message-ID: <1509567631.26787.164.camel@gmx.de> Subject: Re: [PATCH RFC 1/2] sched: Minimize the idle cpu selection race window. From: Mike Galbraith To: Atish Patra , Peter Zijlstra Cc: linux-kernel@vger.kernel.org, joelaf@google.com, brendan.jackman@arm.com, jbacik@fb.com, mingo@redhat.com Date: Wed, 01 Nov 2017 21:20:31 +0100 In-Reply-To: <709d5959-6a2d-1757-f453-d258526fdd08@oracle.com> References: <1509427662-25114-1-git-send-email-atish.patra@oracle.com> <1509427662-25114-2-git-send-email-atish.patra@oracle.com> <20171031082009.rxxa57goto6q5xld@hirez.programming.kicks-ass.net> <1509439705.14765.16.camel@gmx.de> <1509519263.12290.30.camel@gmx.de> <1509520683.12290.41.camel@gmx.de> <709d5959-6a2d-1757-f453-d258526fdd08@oracle.com> Content-Type: text/plain; charset="ISO-8859-15" X-Mailer: Evolution 3.20.5 Mime-Version: 1.0 Content-Transfer-Encoding: 8BIT X-Provags-ID: V03:K0:j+ZUG/pfL+3Q9dSXt5pbPbufRYpPlcqHbo77adbspP3AvUmWDIl OefTb5ArijBdzUkW/ai6eYUS3xS8otXVKcTs8Np5pmMrMt3UaRialSc2LdqW48xvx6yV56b RkQhlY54dZ5wu4P3QkAcvVscpSfxJuloWoUDEv9uc4zJK3A0HrjBXs8SKTTOfeSi0V1Ga3v 0O7GZuLEmw17j2uvyEBoA== X-UI-Out-Filterresults: notjunk:1;V01:K0:rKGBoo0Oj0s=:Tq372+40I09/4tLCEbphMb 8lUKio43DWjfkqeu8KuVOFoDRB/6EIaLJQkYi2wP5Llwvwrt4yx81d4ySnrmRJV8aK12x9gCs XFc4S532XMUQcYNoB8j35loeupQPrCTimIgzOqAyqECaKUc5o4CxaoDNT4AAvn5EQ6WRYjOyC vO+bsZYhgmfvcJCRftR/abPc6BrpLE/7sjfrOgY+p/8pL/K3LtJZKrTgaeTBEEh5BqrafNyXJ E6Y3l2anc8bmA+EIcQtlAq1E7aZYMSCiJZVICVFU/Wz0OwGFLBJE5ZlVaGDqJGmzoEdsI+AjD jjSsVOAXcudrBUL6Sw+6Mh5ckl1FCmWZjpAJwZnqNFlTk/p4mQ6YnWx69mlzBAVTOZcztzTdJ S7Nif17e8N298tIOotfkzyWfTV5bXwh2AQ6eTGJTmITS9QLGggUV8lhz8jzFz8Yj71Aa5szcl hjgqV72mdbPDk4GjeIQZI0os7MyWTJdVgAERKPENDyhL2BUHOyFZOc7cKSnqXbF2iwjDX8Azg Zjk0G8xcDR0XFMR1m/U66s04XJ8NGEf08AzHJ/yJJ3O2Ifb/VgLi1WPqK4ST0CL1+ma6GjojA +iEaVOQ6FoIKvj1t7sou/jYlhfXR39NLjU0ldpcE6ogQArodQEMkgj154DfYhzdDOA0A/J3Hr o0DJPsFfE7Wz8A8jKnPoaY4BZHIcjhkk3NfIvnJDZr5yOE4o5dOQXmj5FOw5dM6BTpajw5jf6 1R2VUeVYquCZEIgbZVNnkD1ZsMJwlVWyl0qZOM83OmGNuPY5s1i4OfHRB6ZYwvo7kEuzcjD3G d4pE9tLep6zbZ8ncUd7b4dDDl1mnh5ikNn4MzPLAACYlo9tgkM= Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 2017-11-01 at 11:36 -0500, Atish Patra wrote: > > Any other benchmark suggestion that may benefit from this fix ? Nope.  I'll be kinda surprised if you find anything where you don't have to squint to see a dinky signal modulating white noise :) -Mike