ntpviz - Don't plot a line during data absence
hmurray at megapathdsl.net
Sun Oct 23 21:30:18 UTC 2016
> Why do we care? Don't we still get a sample, of some sort, every X?
Yes if you look in rawstats. No if you look in peerstats. That was the
whole point of this discussion. (as well as good background)
> So the current line break hack does not plot a line longer than 1024 sec.
> Lines of 1024 sec are plotted. That will not work for folks setting maxpoll
> over 1024 sec.
It will also get occasional bogus breaks with the default maxpoll of 1024
when the peer logic filters out several samples.
> Aren't reclocks local? Thus no rtt?
The data from a refclock gets merged into the main flow. It has to have some
rtt. 0 seems like a good number.
> Is there anything to try in real plots.
You should setup a system using the pool. That will give you lots of
interesting data to look at.
If you setup a local known-good server (or several) to use it as a noselect
server, you can compare the offset they see with its claimed offset.
These are my opinions. I hate spam.
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