[time-nuts] NTP for 64 bit windows
David J Taylor
david-taylor at blueyonder.co.uk
Tue Jan 17 11:20:15 UTC 2012
> Windows has long had its own built-in NTP client. All you have to do
> is use that. You can change the parameters as needed (I always point
> the built-in client to my local NTP server and set the update
> frequency to once every few minutes, given the poor accuracy of PC
> clocks).
>
> --
> Anthony
Anthony,
The built-in client does not support NTP fully - for example, reference
clocks and the management functions. Tell me how accurate it is, for
example. It doesn't respond to a standard:
ntpq -p
command - you need real NTP for that. My advice is to forget the
Microsoft built-in client. Running updates more frequently than is
necessary is not particularly server friendly. Properly configured, read
NTP can be within milliseconds on Windows, and within a couple of hundred
microseconds if you have a PPS source. Using interpolation, you can get
far more precision out of a PC clock:
http://www.lochan.org/2005/keith-cl/useful/win32time.html
Cheers,
David
--
SatSignal software - quality software written to your requirements
Web: http://www.satsignal.eu
Email: david-taylor at blueyonder.co.uk
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