Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932423Ab2FDLxf (ORCPT ); Mon, 4 Jun 2012 07:53:35 -0400 Received: from merlin.infradead.org ([205.233.59.134]:48548 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752778Ab2FDLxe convert rfc822-to-8bit (ORCPT ); Mon, 4 Jun 2012 07:53:34 -0400 Message-ID: <1338810796.28282.32.camel@twins> Subject: Re: [PATCH] sched: balance_cpu to consider other cpus in its group as target of (pinned) task migration From: Peter Zijlstra To: Mike Galbraith Cc: Prashanth Nageshappa , mingo@kernel.org, LKML , roland@kernel.org, Srivatsa Vaddagiri , Ingo Molnar Date: Mon, 04 Jun 2012 13:53:16 +0200 In-Reply-To: <1338801907.7356.163.camel@marge.simpson.net> References: <4FCC4E3B.4090209@linux.vnet.ibm.com> <1338801907.7356.163.camel@marge.simpson.net> Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT X-Mailer: Evolution 3.2.2- Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 624 Lines: 13 On Mon, 2012-06-04 at 11:25 +0200, Mike Galbraith wrote: > Isn't this poking the wrong spot? Yes and no, the use-case is definitely so-so.. However, even if a FIFO task were to only consume 95% of time, we might still want to balance things differently, and I don't think we do the sane thing there either. But fully agreed, if you run FIFO at 100% you get to keep the pieces. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/