From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751326Ab1GWBqo (ORCPT ); Fri, 22 Jul 2011 21:46:44 -0400 Received: from 173-166-109-252-newengland.hfc.comcastbusiness.net ([173.166.109.252]:47106 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750820Ab1GWBqi (ORCPT ); Fri, 22 Jul 2011 21:46:38 -0400 Date: Fri, 22 Jul 2011 21:46:33 -0400 From: Christoph Hellwig To: Dan Williams Cc: jaxboe@fusionio.com, Christoph Hellwig , Roland Dreier , Dave Jiang , linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org Subject: Re: [RFC PATCH 1/2] block: strict rq_affinity Message-ID: <20110723014633.GA32507@infradead.org> References: <20110722205736.17420.41366.stgit@localhost6.localdomain6> <20110722205938.17420.68621.stgit@localhost6.localdomain6> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20110722205938.17420.68621.stgit@localhost6.localdomain6> User-Agent: Mutt/1.5.21 (2010-09-15) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jul 22, 2011 at 01:59:39PM -0700, Dan Williams wrote: > Some storage controllers benefit from completions always being steered > to the strict requester cpu rather than the looser "per-socket" steering > that blk_cpu_to_group() attempts by default. Isn't this actually dependent on the cpu, and not the storage controller?