From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932624Ab2EYLw4 (ORCPT ); Fri, 25 May 2012 07:52:56 -0400 Received: from merlin.infradead.org ([205.233.59.134]:44991 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753793Ab2EYLwz (ORCPT ); Fri, 25 May 2012 07:52:55 -0400 Subject: Re: [PATCH] sched/rt: fix SCHED_RR across cgroups From: Peter Zijlstra To: Dario Faggioli Cc: Colin Cross , linux-kernel@vger.kernel.org, Ingo Molnar , Steven Rostedt , Thomas Gleixner , Hillf Danton In-Reply-To: <1337779944.27368.94.camel@Solace> References: <1337229266-15798-1-git-send-email-ccross@android.com> <1337331395.573.3.camel@twins> <1337366237.573.106.camel@twins> <1337433062.7075.9.camel@Abyss> <1337779944.27368.94.camel@Solace> Content-Type: text/plain; charset="UTF-8" Date: Fri, 25 May 2012 13:52:49 +0200 Message-ID: <1337946769.9783.189.camel@laptop> Mime-Version: 1.0 X-Mailer: Evolution 2.32.2 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 2012-05-23 at 15:32 +0200, Dario Faggioli wrote: > Again, I really think it is the intended behaviour, and yes, real-time > group scheduling "breaks" the POSIX specification of the SCHED_{FIFO,RR} > policies intentionally (and _proudly_, as Peter would say it, am I > wrong? :-P). No, cgroups are well outside of POSIX ;-) as is SMP in fact.