03:20Z 20 Dec 2018 Change poll from 8s to 4s. 4s seems best.
01:30Z 20 Dec 2018 Change poll from 2s to 8s.
23:00Z 20 Dec 2018 Change poll from 4s to 2s.
22:00Z 20 Dec 2018 Change poll from 64s to 4s.
21:40 19 Dec 2018 -- just started
64s SHM(0) offset StdDev 34.5 us, jitter 5.3 us
8s 8s better jitter than 4s, but worse offset than 4s
4s SHM(0) offset mean 0 ns StdDev 481 ns, jitter 449 ns StdDev 250 ns
better than 2s, almost unstable
CPU: Quad core Intel Xeon E3-1241 v3
Motherboard: Supermicro X10SAE
OS: Gentoo stable
GPS; Meinberg GPS180PEX
GPS/PPS server: gpsd
NTP server: NTPsec