Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932402Ab3IONxQ (ORCPT ); Sun, 15 Sep 2013 09:53:16 -0400 Received: from mail-lb0-f171.google.com ([209.85.217.171]:54118 "EHLO mail-lb0-f171.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932204Ab3IONxO (ORCPT ); Sun, 15 Sep 2013 09:53:14 -0400 MIME-Version: 1.0 X-Originating-IP: [212.179.42.66] In-Reply-To: <20130912183503.GB25386@somewhere> References: <00000140efbcb701-c26320b3-f434-4538-bc80-8e92fed6f303-000000@email.amazonses.com> <20130911220228.GB15367@somewhere> <000001411282afa6-fe9c0543-0447-492b-991e-dc8214884b88-000000@email.amazonses.com> <20130912141625.GA23357@somewhere> <00000141128d759a-44dcacb6-8f48-4f9b-8381-d14003bd6da1-000000@email.amazonses.com> <20130912143137.GA23839@somewhere> <0000014112a921ae-51d171bf-e8d4-4569-bd20-94dabda2d5ba-000000@email.amazonses.com> <20130912151102.GB23839@somewhere> <20130912153922.GP3966@linux.vnet.ibm.com> <20130912183503.GB25386@somewhere> Date: Sun, 15 Sep 2013 16:53:12 +0300 Message-ID: Subject: Re: [RFC] Restrict kernel spawning of threads to a specified set of cpus. From: Gilad Ben-Yossef To: Frederic Weisbecker Cc: "Paul E. McKenney" , Christoph Lameter , Andrew Morton , Thomas Gleixner , Mike Frysinger , "linux-kernel@vger.kernel.org" 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: 862 Lines: 29 On Thu, Sep 12, 2013 at 9:35 PM, Frederic Weisbecker wrote: > > Just offline the CPUs you want to isolate, affine your kthreads and re-online > the CPUs. > > If you're lucky enough to have 1024 CPUs, a winter night should be enough ;-) Great, I have 4,096 CPUs. I guess I have to wait for the winter solstice :-) Gilad -- Gilad Ben-Yossef Chief Coffee Drinker gilad@benyossef.com Israel Cell: +972-52-8260388 US Cell: +1-973-8260388 http://benyossef.com "If you take a class in large-scale robotics, can you end up in a situation where the homework eats your dog?" -- Jean-Baptiste Queru -- 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/