[ntp:questions] Re: Tinker freq freq

wayne wayne at midwestcs.com
Mon Dec 1 13:14:17 UTC 2003


In <9m4msvo5jlm7ufougr9r570elj28r77k5p at 4ax.com> Dusty Bin <junkmail at mmscomms.demon.co.uk> writes:

> Personally, I wouldn't have thought telling ntpd a sensible starting value
> would be a particulary daft thing to do, leaving the drift file to track
> things afterwards.

Ditto.

>                     My three machines run at -330, +10, and +70 ppm.
> Of course it is relatively easy for me to get these back on good time
> quickly but, if I am not around, then an uncontrolled service restart may
> take over a day to get to a reasonable10 mS or so.

As I mentioned in the "locking the drift freq" thread, I have two unix
bash scripts that I run periodically via cron.  The first will
resetart the server any time that the drift frequency is "too far
off".  This does a great job of quickly getting ntpd back to
reasonable time keeping state.  The other script goes through the
loopstats logs and determines what should be considered to be a "good"
drift frequency.

Maybe I should convert these scripts into perl, clean them up and
publish them.


-wayne


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