Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758340AbYH2ROj (ORCPT ); Fri, 29 Aug 2008 13:14:39 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755012AbYH2RO2 (ORCPT ); Fri, 29 Aug 2008 13:14:28 -0400 Received: from g5t0009.atlanta.hp.com ([15.192.0.46]:23878 "EHLO g5t0009.atlanta.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754406AbYH2RO1 (ORCPT ); Fri, 29 Aug 2008 13:14:27 -0400 Message-ID: <48B82E6E.2090603@hp.com> Date: Fri, 29 Aug 2008 10:14:22 -0700 From: Rick Jones User-Agent: Mozilla/5.0 (X11; U; HP-UX 9000/785; en-US; rv:1.7.13) Gecko/20060601 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Andi Kleen CC: Arjan van de Ven , Brice Goglin , LKML , netdev@vger.kernel.org Subject: Re: [RFC] export irq_set/get_affinity() for multiqueue network drivers References: <48B708E1.4070001@inria.fr> <20080829055023.07966b4a@infradead.org> <8763pjpy2b.fsf@basil.nowhere.org> In-Reply-To: <8763pjpy2b.fsf@basil.nowhere.org> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Brightmail-Tracker: AAAAAQAAAAI= X-Whitelist: TRUE Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 534 Lines: 12 > Also I suspect handling SMT explicitely is a good idea. e.g. I would > always set the affinity to all thread siblings in a core, not > just a single one, because context switch is very cheap between them. That is true, but don't they also "compete" for pipeline resources? rick jones -- 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/