"C BlacK" <[email protected]> wrote in message
news:[email protected]...
Why would it take ntpd ten hours to achieve its accuracy? Can this be
explained in laymans terms and
mathematically
What accuracy do /you/ want? For best accuracy which NTP can achieve, in
the order of microseconds or better, your PC may need to be in a
temperature controlled environment - how long would it then take to
stabilise its own temperature? Compare people using the best frequency
sources, who may need to leave them for days to achieve their best
accuracy. On the other hand, if all you need is, say, 20ms (the clock
interrupt period on many Windows PCs, so as accurate as a typical program
could measure) then NTP might be that accurate just as soon as you've
logged in.
The time taken to stabilise will typically depend on what accuracy /you/
want to achieve, so "ten hours" alone is meaningless out of context.
Cheers,
David
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