Yo All! Since minpoll=maxpoll=0 is starting to work, I added another test on the RasPi 3 for that value. No need to do so on the Xeon since that would clearly be a bad setting.
RasPi3: Local Clock Local Clock Local Clock PPS PPS Poll Freq Offset 90% Jitter 90% Stability 90% Offset 90% Jitter 90% 0 1.0 ppm 0.65µs 8.2 ppt 1.55µs 0.76µs 1 1.1 ppm 0.43µs 2.3 ppt 1.6µs 0.34µs 2 1.1 ppm 0.08µs 2.9 ppt 2.2µs 0.20µs 3 0.5 ppm 0.18µs 1.9 ppt 3.0µs 0.56µs 4 1.12ppm 1.27µs 2.26ppt 10.3µs 4.11µs 5 1.36ppm 1.34µs 2.64ppt 11.4µs 4.43µs 6 1.4 ppm 3.3 µs 2.2 ppt 68. µs 9.7 µs 7 1.15ppm 1.14µs 1.77ppt 9.4µs 3.45µs 8 0.89ppm 39.9 µs 6.86ppt 977. µs 95.2 µs Here poll=1 (2 sec) still looks best to me. But poll=0 (1 sec) pretty close. A 1/5 second poll would be interesting, but that would require major surgery in ntpd, so not likely anytime soon. I wish all the data was a bit more linear. The poll=7 data sticks out, I'll prolly have to rerun the data sometime. I don't think the Local CLock Frequency Offset data is useful here, it corelates to room temp not to poll. RGDS GARY --------------------------------------------------------------------------- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703 g...@rellim.com Tel:+1 541 382 8588
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