Date: Thu, 18 Feb 1999 00:13:51 -0600 (CST) From: Dave Bodenstab <imdave@mcs.net> To: dan@jgl.reno.nv.us, freebsd-questions@FreeBSD.ORG Subject: Re: Time drift: hardware or software? Message-ID: <199902180613.AAA18547@base486.home.org>
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From: "Dan O'Connor" <dan@jgl.reno.nv.us> > > I'm running 3.1-STABLE with a user-ppp connection to the Internet, and I'm > running ftpdate from cron every two hours. While I don't get 'calcru minus > time' errors, my system clock drifts something fierce--about -110 seconds > per hour. > > Is this hardware related, or is FreeBSD's time counter really off? Can I do > anything about it? Take a look at ftp://koobera.math.uic.edu/www/software/clockspeed-0.62.tar.gz and http://pobox.com/~djb/proto/utctai.html. Although my system clock does not drift anywhere near what you are reporting, I set my time once with ntpdate. Clockspeed then keeps the system clock accurate to within .1 second. I run xntpd as a server to sync my other systems. Every week or so, I re-adjust clockspeed with an external xntpd server when I happen to think about it. Dave Bodenstab imdave@mcs.net To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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