On Mar 26, 5:46 am, Unruh <unruh-s...@physics.ubc.ca> wrote: > So, I have PPS running the shm refclock, with the seconds supplied by the > local clock (ie the reading from the system clock) and the usec from the > PPS signal. Since I do not expect the local clock to suddenly shift by a > second, its usec discipline should be fine. I mark it as the preferred > server. (The PPS shm is run only once the local clock is disciplined to > within .1 sec by the other sources).
This could be a good idea in my opinion, but someone with better knowledge should comment that. I'm trying this right now. As soon as the GPS/DCF gets dark, the LOCAL clock is used as prefer peer and PPS is still used to sync. Only thing that comes to my mind are leap seconds: As the RTC is only synced by the kernel every 11 minutes, it could cause troubles when the LOCAL clock suddenly is 1 s off GPS/DCF. But I guess it will be marked as false ticker until the next kernelsync. _______________________________________________ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
