Richard B. Gilbert wrote: > > My Solaris 8 SPARC system seems to be able to synch with the GPS > receiver in about 30 minutes. I may reboot that system once a year
How do you define "synch"? NTP has an infinite impulse response, so will never completely synchronize. What Unruh means is the time until the residual error is comparable with the measurement error specified for the receiver, which is one microsecond for cheap GPS receivers and 50 nano-seconds, according the the GPS performance specification. The error also has to stay that low, e.g. the first zero crossing doesn't count because the error will overshoot on the other side. > unless we have a power outrage that lasts longer than the UPS battery! > Absent something like a power failure there's no real reason to reboot > it at all. > _______________________________________________ questions mailing list [email protected] https://lists.ntp.org/mailman/listinfo/questions
