[time-nuts] Divide by five
Magnus Danielson
magnus at rubidium.dyndns.org
Mon Nov 10 02:09:21 EST 2014
Hi,
On 11/09/2014 11:40 PM, Poul-Henning Kamp wrote:
> --------
> In message <CAKyJ6kbZ5bzSoxB4vxRb3=9NJTiz70jzk9TOcmuizZ1Xv=bWaQ at mail.gmail.com>
> , Paul writes:
>
>> You're saying these documents affirming clock combining are wrong? Or have
>> I gone terribly astray?
>
> I'm saying that with NTP there is plenty of room between theory and
> practice :-)
When you follow the breadcrum trace to the paper for control algorithm
theory, the ADEV intercept point is traceable to a different concept
with different noise-behavior, in which the method worked, where as
re-applying it to the noises of packet networks may not be the best of
methods.
With all the theory available, it just doesn't necessarily apply to the
reality.
BTW, the ADEV intercept-point was done not by Dave Mills, but he refer
to a paper by Judah Levine.
Cheers,
Magnus
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