Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752597Ab3FXLHZ (ORCPT ); Mon, 24 Jun 2013 07:07:25 -0400 Received: from mail-lb0-f181.google.com ([209.85.217.181]:43017 "EHLO mail-lb0-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750979Ab3FXLHY (ORCPT ); Mon, 24 Jun 2013 07:07:24 -0400 MIME-Version: 1.0 In-Reply-To: References: <1371694737-29336-1-git-send-email-alex.shi@intel.com> <1371694737-29336-7-git-send-email-alex.shi@intel.com> <51C80C33.4050606@intel.com> From: Paul Turner Date: Mon, 24 Jun 2013 04:06:52 -0700 Message-ID: Subject: Re: [Resend patch v8 06/13] sched: compute runnable load avg in cpu_load and cpu_avg_load_per_task To: Vincent Guittot Cc: Alex Shi , "mingo@redhat.com" , Peter Zijlstra , Thomas Gleixner , Andrew Morton , Arjan van de Ven , Borislav Petkov , Namhyung Kim , Mike Galbraith , Morten Rasmussen , gregkh@linuxfoundation.org, Preeti U Murthy , Viresh Kumar , linux-kernel , Len Brown , rafael.j.wysocki@intel.com, jkosina@suse.cz, Clark Williams , "tony.luck@intel.com" , keescook@chromium.org, Mel Gorman , Rik van Riel Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 614 Lines: 13 > AFAICT, the RT tasks activity is already taken into account by > decreasing the cpu_power that is used during load balance like in the > find_busiest_queue where weighted_cpuload is divided by cpu_power. > Yes. RT tasks used to be handled as having a very-large weight [e.g. 2*nice(-20)] but now we just scale cpu-power for how much non-RT time there is available. -- 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/