Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S269175AbTGJKSj (ORCPT ); Thu, 10 Jul 2003 06:18:39 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S269174AbTGJKSj (ORCPT ); Thu, 10 Jul 2003 06:18:39 -0400 Received: from nat-pool-rdu.redhat.com ([66.187.233.200]:2712 "EHLO devserv.devel.redhat.com") by vger.kernel.org with ESMTP id S269173AbTGJKSi (ORCPT ); Thu, 10 Jul 2003 06:18:38 -0400 Date: Thu, 10 Jul 2003 10:33:17 +0000 From: Arjan van de Ven To: Andi Kleen Cc: Arjan van de Ven , linux-kernel@vger.kernel.org Subject: Re: memset (was: Redundant memset in AIO read_events) Message-ID: <20030710103317.D21655@devserv.devel.redhat.com> References: <20030710100417.83333.qmail@web11801.mail.yahoo.com.suse.lists.linux.kernel> <1057832361.5817.2.camel@laptop.fenrus.com.suse.lists.linux.kernel> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: ; from ak@suse.de on Thu, Jul 10, 2003 at 12:29:10PM +0200 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 560 Lines: 11 On Thu, Jul 10, 2003 at 12:29:10PM +0200, Andi Kleen wrote: > The problem is that the instruction that avoid write-allocate usually also force > the result out of cache. that's for the current implementation; rep stosl may get the WA-avoiding behavior sometime without the negative cache effects.. someday maybe. - 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/