[time-nuts] Divide by five ->Ensemble
hmurray at megapathdsl.net
Sun Nov 9 18:07:06 EST 2014
kb8tq at n1k.org said:
> What is going on is that people are confusing the estimation process that is
> used by the selection process (which does look at a lot of stuff) and how
> that is described. ...
In this context, it's important to remember that there are 2 parameters
associated with the goodness of clocks. The first is the error. The second
is the error bars. For NTP, the error bars are often huge and often differ
wildly between clocks.
I don't know how that translates into getting the best out of a batch of Rbs.
NTP has another trick worth adding to the collection. For things like PPS
processing, it collects a batch of samples, then discards roughly 1/3 of them
as outliers. That helps keep an occasional bad sample from biasing the
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