From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 19 Sep 2002 22:01:20 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 19 Sep 2002 22:01:20 -0400 Received: from ns.suse.de ([213.95.15.193]:24592 "EHLO Cantor.suse.de") by vger.kernel.org with ESMTP id ; Thu, 19 Sep 2002 22:01:19 -0400 Date: Fri, 20 Sep 2002 04:06:19 +0200 From: Andi Kleen To: "David S. Miller" Cc: ak@suse.de, akpm@digeo.com, taka@valinux.co.jp, alan@lxorguk.ukuu.org.uk, neilb@cse.unsw.edu.au, linux-kernel@vger.kernel.org, nfs@lists.sourceforge.net Subject: Re: [NFS] Re: [PATCH] zerocopy NFS for 2.5.36 Message-ID: <20020920040619.A30304@wotan.suse.de> References: <3D8A754E.5BA2E28D@digeo.com> <20020920032346.A22949@wotan.suse.de> <20020919.182739.48496975.davem@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20020919.182739.48496975.davem@redhat.com> User-Agent: Mutt/1.3.22.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org > See "montdq/movnti", the latter of which even works on register > registers. Ben LaHaise pointed this out to me earlier today. The issue is that you really want to do prefetching in these loops (waiting for the hardware prefetch is too slow because it needs several cache misses to trigger) so for cache hints on reading only prefetch instructions are interesting. -Andi