From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757267AbZBZQDZ (ORCPT ); Thu, 26 Feb 2009 11:03:25 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754919AbZBZQDP (ORCPT ); Thu, 26 Feb 2009 11:03:15 -0500 Received: from casper.infradead.org ([85.118.1.10]:48826 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754917AbZBZQDL (ORCPT ); Thu, 26 Feb 2009 11:03:11 -0500 Subject: Re: [RFC PATCH 0/4] timers: framework for migration between CPU From: Peter Zijlstra To: Ingo Molnar Cc: Dipankar Sarma , Vaidyanathan Srinivasan , Balbir Singh , Arjan van de Ven , linux-kernel@vger.kernel.org, linux-pm@lists.linux-foundation.org, ego@in.ibm.com, tglx@linutronix.de, andi@firstfloor.org, venkatesh.pallipadi@intel.com, vatsa@linux.vnet.ibm.com, arun@linux.vnet.ibm.com, Suresh Siddha In-Reply-To: <20090226154526.GD352@elte.hu> References: <20090220141415.GA27381@dirshya.in.ibm.com> <20090220160737.GC11294@elte.hu> <20090220115745.43d202d6@infradead.org> <20090220215318.GA30665@elte.hu> <20090223075521.GA3725@balbir.in.ibm.com> <20090223091158.GJ9582@elte.hu> <20090223094850.GA10226@balbir.in.ibm.com> <20090223103814.GB8817@dirshya.in.ibm.com> <20090223110725.GB17312@elte.hu> <20090226085831.GA28397@in.ibm.com> <20090226154526.GD352@elte.hu> Content-Type: text/plain Date: Thu, 26 Feb 2009 17:02:49 +0100 Message-Id: <1235664169.4948.319.camel@laptop> Mime-Version: 1.0 X-Mailer: Evolution 2.25.91 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2009-02-26 at 16:45 +0100, Ingo Molnar wrote: > Yes - but that kind of policy should be coupled and expressed > via cpusets. /proc based irq_affinity is just a limited, > inflexible hack. All things IRQ partitioning should be handled > via cpusets - perhaps via the 'system sets' idea from Peter? all we got out of that idea was the default_smp_affinity thing in /proc/irq and a head-ache trying to work out silly details. Maybe we ought to try again,..