From owner-freebsd-current Fri Oct 20 17:41:28 1995 Return-Path: owner-current Received: (from root@localhost) by freefall.freebsd.org (8.6.12/8.6.6) id RAA26721 for current-outgoing; Fri, 20 Oct 1995 17:41:28 -0700 Received: from irz301.inf.tu-dresden.de (irz301.inf.tu-dresden.de [141.76.1.11]) by freefall.freebsd.org (8.6.12/8.6.6) with ESMTP id RAA26703 for ; Fri, 20 Oct 1995 17:41:18 -0700 Received: from sax.sax.de by irz301.inf.tu-dresden.de (8.6.12/8.6.12-s1) with ESMTP id BAA12363 for ; Sat, 21 Oct 1995 01:39:53 +0100 Received: by sax.sax.de (8.6.11/8.6.12-s1) with UUCP id BAA10820 for freebsd-current@freebsd.org; Sat, 21 Oct 1995 01:39:53 +0100 Received: (from j@localhost) by uriah.heep.sax.de (8.6.12/8.6.9) id XAA12519 for freebsd-current@freebsd.org; Fri, 20 Oct 1995 23:17:59 +0100 From: J Wunsch Message-Id: <199510202217.XAA12519@uriah.heep.sax.de> Subject: Re: clock running faster? To: freebsd-current@freebsd.org Date: Fri, 20 Oct 1995 23:17:59 +0100 (MET) Reply-To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch) In-Reply-To: <9510201426.AA09055@halloran-eldar.lcs.mit.edu> from "Garrett A. Wollman" at Oct 20, 95 10:26:22 am X-Phone: +49-351-2012 669 X-Mailer: ELM [version 2.4 PL23] MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit Content-Length: 845 Sender: owner-current@freebsd.org Precedence: bulk As Garrett A. Wollman wrote: > > >> The changes have the effect of making the Pentium clock the reference. > > > I don't think this has been a good idea. > > Please explain your reason for believing this, keeping in mind that a > similar technique was used on MicroVAXen in 4.3 (except using > microtime() rather than a purpose-built function). I simply don't trust the PeeCee industry to even bother making the CPU clock an exact frequency. OTOH, they seem to be somewhat eager to keep in spec with the 14.318... MHz clock bas where the timer input is derived from (since otherwise the MSDOG clock would also be wrong). Remember that not all people around do live in NTPland. -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)