From owner-freebsd-arch@FreeBSD.ORG Sun Sep 21 10:30:00 2003 Return-Path: Delivered-To: freebsd-arch@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 3BA0616A4B3 for ; Sun, 21 Sep 2003 10:30:00 -0700 (PDT) Received: from blake.polstra.com (mail.polstra.com [206.213.73.132]) by mx1.FreeBSD.org (Postfix) with ESMTP id F048E43F75 for ; Sun, 21 Sep 2003 10:29:58 -0700 (PDT) (envelope-from jdp@polstra.com) Received: from strings.polstra.com (strings.polstra.com [206.213.73.20]) by blake.polstra.com (8.12.9/8.12.9) with ESMTP id h8LHTkIL021458; Sun, 21 Sep 2003 10:29:46 -0700 (PDT) (envelope-from jdp@polstra.com) Message-ID: X-Mailer: XFMail 1.5.4 on FreeBSD X-Priority: 3 (Normal) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit MIME-Version: 1.0 In-Reply-To: <20030920.214835.101559646.imp@bsdimp.com> Date: Sun, 21 Sep 2003 10:29:46 -0700 (PDT) From: John Polstra To: "M. Warner Losh" X-Bogosity: No, tests=bogofilter, spamicity=0.493654, version=0.14.5 cc: freebsd-arch@freebsd.org Subject: Re: interrupt latency and driver locking X-BeenThere: freebsd-arch@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussion related to FreeBSD architecture List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 21 Sep 2003 17:30:00 -0000 On 21-Sep-2003 M. Warner Losh wrote: > John Polstra writes: >: there will be no link changes except at bootstrap and shutdown. > > For server machines. For laptops, these events happen more often. > However, for most laptops, the rate that they happen is typically on > less than 1/hour. Still rare enough to not worry about optimizing it > and your other points are good. I just wanted to make sure that it > wasn't optimized to the point where disconnecting the cable from the > laptop to move it accross the room, or another room doesn't cause huge > problems. Don't worry, I have a laptop too. :-) John