On Wed, Feb 02, 2022 at 09:31:10AM +0100, Miroslav Lichvar wrote: > On Tue, Feb 01, 2022 at 02:37:20PM -0700, Joe Williams wrote: > > In this test set up chronyc sources shows the PHC PPS-only refclock as a > > falseticker and synchronizes fine with the FB time server. Which is why I > > was wondering if it needed to be disciplined in some way to make it useful. > > It needs to be synchronized. chronyd cannot use a time source for > frequency only.
The latest code in git has a new "local" option to use stable free-running refclocks (e.g. TCXO, OCXO, atomic clock) for stabilization of the system clock, e.g. refclock PHC /dev/ptp0 local poll 0 To take advantage of the improved stability, other sources specified in the config file should use a longer polling interval and/or the filter option, and possibly also set minsamples to 64. -- Miroslav Lichvar -- To unsubscribe email chrony-users-requ...@chrony.tuxfamily.org with "unsubscribe" in the subject. For help email chrony-users-requ...@chrony.tuxfamily.org with "help" in the subject. Trouble? Email listmas...@chrony.tuxfamily.org.
