From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758931AbZHRNZz (ORCPT ); Tue, 18 Aug 2009 09:25:55 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758808AbZHRNZy (ORCPT ); Tue, 18 Aug 2009 09:25:54 -0400 Received: from casper.infradead.org ([85.118.1.10]:56323 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753903AbZHRNZy (ORCPT ); Tue, 18 Aug 2009 09:25:54 -0400 Subject: Re: [PATCH 0/12] cleanup __build_sched_domains() From: Peter Zijlstra To: Andreas Herrmann Cc: Ingo Molnar , linux-kernel@vger.kernel.org, Gautham Shenoy , Vatsa In-Reply-To: <20090818131558.GO29515@alberich.amd.com> References: <20090818104944.GA29515@alberich.amd.com> <20090818111644.GA23983@elte.hu> <20090818131558.GO29515@alberich.amd.com> Content-Type: text/plain Content-Transfer-Encoding: 7bit Date: Tue, 18 Aug 2009 15:25:41 +0200 Message-Id: <1250601941.7583.283.camel@twins> Mime-Version: 1.0 X-Mailer: Evolution 2.26.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 2009-08-18 at 15:15 +0200, Andreas Herrmann wrote: > > > I'd also not be surprised if the load-balancer needed some care to > > properly handle such a setup. > > It needs some care and gave me some headache to get it working in all > cases (i.e. NUMA, no-NUMA, NUMA-but-no-SRAT). My current code (that > still needs to be split in proper patches for submission) works fine > in all but one case. And I am still debugging it. > > The case that is not working is a normal (non-multi-node) NUMA system > on which switching to power policy does not take effect for already > running tasks. Just the new created ones are scheduled according to > the power policy. Note that current upstream is broken here in a way that isn't fixable in a straight fwd way. Ego and vatsa were looking into that iirc.