From owner-freebsd-multimedia Sun Sep 8 22:24:10 1996 Return-Path: owner-multimedia Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id WAA00952 for multimedia-outgoing; Sun, 8 Sep 1996 22:24:10 -0700 (PDT) Received: from rah.star-gate.com (rah.star-gate.com [204.188.121.18]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id WAA00946 for ; Sun, 8 Sep 1996 22:24:08 -0700 (PDT) Received: from rah.star-gate.com (localhost.star-gate.com [127.0.0.1]) by rah.star-gate.com (8.7.5/8.7.3) with ESMTP id WAA01094 for ; Sun, 8 Sep 1996 22:23:48 -0700 (PDT) Message-Id: <199609090523.WAA01094@rah.star-gate.com> X-Mailer: exmh version 1.6.9 8/22/96 To: multimedia@freebsd.org Subject: Dallas clock chipsets and FreeBSD Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Sun, 08 Sep 1996 22:23:48 -0700 From: Amancio Hasty Sender: owner-multimedia@freebsd.org X-Loop: FreeBSD.org Precedence: bulk Low jitter clocks or workstation class clock accuracy. Every once in while we run into a problem of maintaining relative to unix workstatins a low clock jitter rate. It appears that motherboards from ASUS include a Dallas clock chipset which is supposed to be just as accurate as unix workstations however the problem is finding out how off is the clock chipset given that is tolerance is +- 5 percent;additionally; we do know that clock chipsets maintain a fairly constant low jitter rate so the problem is in finding out the percentage that the clock is off. Any hints on how to do this? Tnks, Amancio