From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753519Ab0DSS5D (ORCPT ); Mon, 19 Apr 2010 14:57:03 -0400 Received: from casper.infradead.org ([85.118.1.10]:48044 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753116Ab0DSS5A (ORCPT ); Mon, 19 Apr 2010 14:57:00 -0400 Subject: Re: [REGRESSION 2.6.30][PATCH v3] sched: update load count only once per cpu in 10 tick update window From: Peter Zijlstra To: Chase Douglas Cc: linux-kernel@vger.kernel.org, Thomas Gleixner , Andrew Morton , Ingo Molnar , "Rafael J. Wysocki" , kernel-team In-Reply-To: <1271703130.1676.214.camel@laptop> References: <1271200751-18697-1-git-send-email-chase.douglas@canonical.com> <1271703130.1676.214.camel@laptop> Content-Type: text/plain; charset="UTF-8" Date: Mon, 19 Apr 2010 20:56:52 +0200 Message-ID: <1271703412.1676.224.camel@laptop> Mime-Version: 1.0 X-Mailer: Evolution 2.28.3 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2010-04-19 at 20:52 +0200, Peter Zijlstra wrote: > > So the only early updates can come from > pick_next_task_idle()->calc_load_account_active(), so why not specialize > that callchain instead of the below? To clarify, when I wrote that your patch was still below.. ;-)