From owner-freebsd-stable@FreeBSD.ORG Tue Jan 17 20:12:55 2012 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 1BC88106564A for ; Tue, 17 Jan 2012 20:12:55 +0000 (UTC) (envelope-from lists@rewt.org.uk) Received: from abby.lhr1.as41113.net (abby.lhr1.as41113.net [91.208.177.20]) by mx1.freebsd.org (Postfix) with ESMTP id D69E28FC08 for ; Tue, 17 Jan 2012 20:12:54 +0000 (UTC) Received: from jasmine.internethq (unknown [91.208.177.192]) by abby.lhr1.as41113.net (Postfix) with ESMTP id A3B4B2280C for ; Tue, 17 Jan 2012 20:12:53 +0000 (UTC) Received: from [172.16.11.44] (jwh-laptop.internethq [172.16.11.44]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by jasmine.internethq (Postfix) with ESMTPS id D972B106A74FD for ; Tue, 17 Jan 2012 20:13:03 +0000 (GMT) Message-ID: <4F15D643.8000907@rewt.org.uk> Date: Tue, 17 Jan 2012 20:12:51 +0000 From: Joe Holden User-Agent: Thunderbird 2.0.0.24 (Windows/20100228) MIME-Version: 1.0 To: FreeBSD Stable Mailing List Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: Timekeeping in stable/9 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 17 Jan 2012 20:12:55 -0000 Hi guys, Has anyone else noticed the tendency for 9.0-R to be unable to accurately keep time? I've got a couple of machines that have been upgraded from 8.2 that are struggling, in particular a Virtual box guest that was fine on 8.2, but now that's its been upgraded to 9.0 counts at anything from 2 to 20 seconds per 5 second sample, the result is similar with HPET, ACPI-fast and TSC. I also have physical boxes which new seem to drift quite substantially, ntpd cannot keep up and as these boxes need to be able to report the time relatively accurately, it is causing problems with log times and such... Any suggestions most welcome! Thanks, J