Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757114Ab2FEHjq (ORCPT ); Tue, 5 Jun 2012 03:39:46 -0400 Received: from merlin.infradead.org ([205.233.59.134]:55828 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756058Ab2FEHjp convert rfc822-to-8bit (ORCPT ); Tue, 5 Jun 2012 03:39:45 -0400 Message-ID: <1338881971.28282.150.camel@twins> Subject: Re: [PATCH 0/6] x86/cpu hotplug: Wake up offline CPU via mwait or nmi From: Peter Zijlstra To: Rusty Russell Cc: Thomas Gleixner , Fenghua Yu , Ingo Molnar , H Peter Anvin , Suresh B Siddha , Tony Luck , Asit K Mallick , Arjan Dan De Ven , linux-kernel , x86 , linux-pm , "Srivatsa S. Bhat" Date: Tue, 05 Jun 2012 09:39:31 +0200 In-Reply-To: <87zk8iioam.fsf@rustcorp.com.au> References: <1338833876-29721-1-git-send-email-fenghua.yu@intel.com> <1338842001.28282.135.camel@twins> <87zk8iioam.fsf@rustcorp.com.au> Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT X-Mailer: Evolution 3.2.2- Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 466 Lines: 11 On Tue, 2012-06-05 at 10:10 +0930, Rusty Russell wrote: > I disagree. Deactivating a cpu for power saving is halfway to hotplug > anyway. No, that's only so for broken hardware. On sane hardware idling is sufficient. -- 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/