From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751765AbbJLIEO (ORCPT ); Mon, 12 Oct 2015 04:04:14 -0400 Received: from casper.infradead.org ([85.118.1.10]:44283 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751157AbbJLIEK (ORCPT ); Mon, 12 Oct 2015 04:04:10 -0400 Date: Mon, 12 Oct 2015 10:04:07 +0200 From: Peter Zijlstra To: Mike Galbraith Cc: linux-kernel@vger.kernel.org, Yuyang Du Subject: Re: 4.3 group scheduling regression Message-ID: <20151012080407.GJ3816@twins.programming.kicks-ass.net> References: <1444292390.3389.100.camel@gmail.com> <201510081054.t98AsL1U003456@como.maths.usyd.edu.au> <20151008111959.GM3816@twins.programming.kicks-ass.net> <1444483369.2804.9.camel@gmail.com> <20151010170142.GI3816@twins.programming.kicks-ass.net> <1444530318.3363.40.camel@gmail.com> <1444585321.4169.18.camel@gmail.com> <20151012072344.GM3604@twins.programming.kicks-ass.net> <1444635897.3425.19.camel@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1444635897.3425.19.camel@gmail.com> User-Agent: Mutt/1.5.21 (2012-12-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Oct 12, 2015 at 09:44:57AM +0200, Mike Galbraith wrote: > It's odd to me that things look pretty much the same good/bad tree with > hogs vs hogs or hogs vs tbench (with top anyway, just adding up times). > Seems Xorg+mplayer more or less playing cross group ping-pong must be > the BadThing trigger. Ohh, wait, Xorg and mplayer are _not_ in the same group? I was assuming you had your entire user session in 1 (auto) group and was competing against 8 manual cgroups. So how exactly are things configured?