[ntp:questions] PSYCHO PC clock is advancing at 2 HR per second
David J Taylor
david-taylor at blueyonder.co.uk.invalid
Wed Mar 21 19:44:48 UTC 2012
"Ron Frazier (NTP)" <timekeepingntplist at c3energy.com> wrote in message
news:4F69E531.7070602 at c3energy.com...
> C) What your ntp plotter plots as the red line on the jitter tab with a
> loopstats file. Not sure how that's derived.
Red-line: jitter straight out of the loopstats data. Scale on the left.
Green line: same, but averaged over the time you select. Note that the
scale is on the right-hand side, and is ten times that on the left. This
so that peaks show more clearly on the raw graph.
> D) What your ntp plotter plots as the black line on the jitter tab with
> a loopstats file, a weighted moving average, presumably of the red line.
The RMS variation of the offset in a one-hour period. Not sure this is
particularly useful, quite honestly.
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