Subject: Re: ntpd - does it work?
To: None <port-macppc@netbsd.org>
From: gabriel rosenkoetter <gr@eclipsed.net>
List: port-macppc
Date: 03/13/2000 14:54:02
On Mon, Mar 13, 2000 at 07:43:08PM +0000, Simon Baker wrote:
> Then I say we have a problem....
> 
> My mac is losing ~0.13 of a second per 20 mins, then I'd say I have fairly 
> serious issue.  And if everybody else has....
> 
> It would be interesting to note on what machines these are, and the extent 
> of it.  FWIW, mines a B&W G3 that doesn't do much.  The load is usually 
> 0.00, 0.01 etc....

Hrm.

My 7500 (G3 processor) is under nearly 0 load most of the time,
periodically high load (I'm using for a parallel processing project,
but not as one of the nodes, and also to represent eclipsed.net to the
outside world), and I've never had clock problems.

On the other hand, I run xntpd and look at a few strati of servers. My
/etc/ntp.conf:

--- clip ---
# $Id: ntp.conf,v 1.5 2000/02/27 01:18:15 gr Exp $

server  130.58.68.10    # allspice.cs.swarthmore.edu
# contact local-staff@cs.swarthmore.edu
server  130.58.64.40    # acorn.cc.swarthmore.edu
# contact preset@cc.swarthmore.edu
server  128.118.46.3    # otc1.psu.edu (stratum 1)
# contact JohnBalogh@psu.edu
server  128.175.1.3     # louie.udel.edu (stratum 2)
# contact Dave Mills (mills@udel.edu)

restrict default                                nomodify notrap notrust noserve
# machines in the cluster:
restrict 130.58.82.0    mask 255.255.255.0      notrap notrust
# higher-stratum servers (see above):
restrict 130.58.68.10                           nomodify notrap
restrict 130.58.64.40                           nomodify notrap
restrict 128.118.46.3                           nomodify notrap
restrict 128.175.1.3                            nomodify notrap
--- clip ---

... and proof that my clock is actually synching (turmeric is a Sun
Ultra 10 running Solaris 2.6, also synching with the servers listed in
my ntp.conf above):

turmeric:~% ssh uriel.eclipsed.net date ; date
Mon Mar 13 14:50:11 EST 2000
Mon Mar 13 14:50:11 EST 2000

So, my response would be "use xntpd", but maybe there's some reparable
issue dealing with macppc clocks that I'm just not seeing here.

       ~ g r @ eclipsed.net