> server 127.127.28.0 minpoll 4 maxpoll 4 Speaking of gpsd and ntpd...
That minpoll/maxpoll stuff is trying to work around a bug/oversight in ntpd. The current code grabs one sample per polling interval. The right way is to grab a sample every second and filter/average them over a polling interval. ntpd had code to do all the hard work. I've got a patch for the shared memory refclock driver that takes advantage of that. Results are here: http://www.megapathdsl.net/~hmurray/ntp/GPS18USB-SHM-off.gif http://www.megapathdsl.net/~hmurray/ntp/GPS18USB-SHM-jit.gif A long time ago, I asked on comp.protocols.time.ntp but nobody responded. Is anybody here willing to help test it? If so, please contact me off-list. -- These are my opinions, not necessarily my employer's. I hate spam. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
