I noticed that it takes chrony about 20 - 40 minutes after start/wake up to
settle down to a plausible value for frequency.
(The offsets are fine after about 10 minutes - and not too bad before this).
What about this ( n = 20 to 40 minutes ):
if t = time since start/wake up < n and /var/lib/chrony/drift exists then
usedFrequency = [ (n-t) * frequency from /var/lib/chrony/drift + t
* computed frequency from insuffizient data ] / n
else
usedFrequency = computed frequency from no longer insuffizient data
end if
Gerriet.
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