From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751417AbaC1HF1 (ORCPT ); Fri, 28 Mar 2014 03:05:27 -0400 Received: from mail-ee0-f49.google.com ([74.125.83.49]:50408 "EHLO mail-ee0-f49.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751150AbaC1HFZ (ORCPT ); Fri, 28 Mar 2014 03:05:25 -0400 Message-ID: <1395990322.4877.22.camel@marge.simpson.net> Subject: Re: [RFC II] Splitting scheduler into two halves From: Mike Galbraith To: Yuyang Du Cc: Ingo Molnar , "peterz@infradead.org" , "mingo@redhat.com" , "linux-kernel@vger.kernel.org" , "linux-pm@vger.kernel.org" , "morten.rasmussen@arm.com" , "Van De Ven, Arjan" , "Brown, Len" , "Wysocki, Rafael J" , "Cox, Alan" Date: Fri, 28 Mar 2014 08:05:22 +0100 In-Reply-To: <20140327230022.GA27225@intel.com> References: <20140326183721.GC24116@intel.com> <1395896233.5512.45.camel@marge.simpson.net> <20140327072511.GA2555@gmail.com> <20140327221320.GA26843@intel.com> <1395989431.4877.19.camel@marge.simpson.net> <20140327230022.GA27225@intel.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.2.3 Content-Transfer-Encoding: 7bit Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 2014-03-28 at 07:00 +0800, Yuyang Du wrote: > On Fri, Mar 28, 2014 at 07:50:31AM +0100, Mike Galbraith wrote: > > On Fri, 2014-03-28 at 06:13 +0800, Yuyang Du wrote: > > > > > Spitting does feel brutal... > > > > FWIW, "split" stuck hard in my gullet because task placement is core > > Oh, sorry for that, :) It wasn't _painful_ or anything, I just couldn't swallow it ;-) > > fastpath mission. If the fastpath could afford to and did task > > placement perfectly, task placement EDC (if you will) mechanisms would > > not exist. > > Sometimes, we have to if not get to. Yup... but it's still core mission.