Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 24 Jul 2001 13:45:12 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 24 Jul 2001 13:45:02 -0400 Received: from marine.sonic.net ([208.201.224.37]:23328 "HELO marine.sonic.net") by vger.kernel.org with SMTP id ; Tue, 24 Jul 2001 13:44:49 -0400 X-envelope-info: Date: Tue, 24 Jul 2001 10:44:53 -0700 From: Mike Castle To: linux-kernel@vger.kernel.org Subject: Re: [RFC] Optimization for use-once pages Message-ID: <20010724104453.G5835@thune.mrc-home.com> Reply-To: Mike Castle Mail-Followup-To: Mike Castle , linux-kernel@vger.kernel.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.3.18i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Original-Recipient: rfc822;linux-kernel-outgoing On Tue, Jul 24, 2001 at 02:07:32PM -0300, Rik van Riel wrote: > > I hate to bother you directly, but I don't wish to start a flame > > war on lkml. How exactly would you explain two accesses as > > being "used once"? > > Because they occur in a very short interval, an interval MUCH > shorter than the time scale in which the VM subsystem looks at > referenced bits, etc... Would mmap() then a for(;;) loop over the range be an example of such a use? mrc -- Mike Castle dalgoda@ix.netcom.com www.netcom.com/~dalgoda/ We are all of us living in the shadow of Manhattan. -- Watchmen fatal ("You are in a maze of twisty compiler features, all different"); -- gcc - 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/