[ntp:questions] Re: HowTo calibrate system clock frequency using NTP
daniel.kabs at gmx.de
Mon Feb 6 10:15:32 UTC 2006
Hello Professor Mills,
I have a lot of respect for the delicate and sophisticated NTP
internals. Actually too much respect to get in touch with them.
Rather I'm using NTP as a tool. A tool that measures (or helps me to
measure) the system clock's frequency error.
David L. Mills wrote:
> The frequency measurement uses the feedback loop described in detail on
> the architecture and clock discipline briefings on the NTP project page
> linked via www.ntp.org. A simple average is not good enough as it does
> not account for the heavy-tail effects due to the random-walk character
> of the clock oscillator frequency.
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