From owner-cvs-src@FreeBSD.ORG Sun Apr 6 08:25:57 2003 Return-Path: Delivered-To: cvs-src@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 1653937B401; Sun, 6 Apr 2003 08:25:57 -0700 (PDT) Received: from cvsup.no.freebsd.org (c2h5oh.idi.ntnu.no [129.241.103.69]) by mx1.FreeBSD.org (Postfix) with ESMTP id D358943F85; Sun, 6 Apr 2003 08:25:55 -0700 (PDT) (envelope-from Tor.Egge@cvsup.no.freebsd.org) Received: from localhost (localhost [127.0.0.1])h36FPsai043531; Sun, 6 Apr 2003 15:25:54 GMT (envelope-from tegge@cvsup.no.freebsd.org) To: des@ofug.org From: Tor.Egge@cvsup.no.freebsd.org In-Reply-To: References: <20030406004043E.tegge@cvsup.no.freebsd.org> X-Mailer: Mew version 1.94.2 on Emacs 20.7 / Mule 4.0 (HANANOEN) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-Id: <20030406152554B.tegge@cvsup.no.freebsd.org> Date: Sun, 06 Apr 2003 15:25:54 GMT Sender: Tor Egge X-Dispatcher: imput version 20000228(IM140) Lines: 9 cc: cvs-src@FreeBSD.org cc: src-committers@FreeBSD.org cc: cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/conf options.i386 src/sys/i386/i386 tsc.c src/sys/i386/conf NOTES X-BeenThere: cvs-src@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: CVS commit messages for the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 06 Apr 2003 15:25:57 -0000 > Is there a simple procedure to determine whether the TSCs on any given > multi-CPU machine are synchronized? Ensure that the TSCs are used, then run a program which calls gettimeofday() in a loop and prints an error message each time the clock steps backwards. Repeat procedure after 1 day of uptime. - Tor Egge