On Mon, Jul 24, 2017 at 05:39:05PM -0700, Denny Page wrote: > When using the PHC refclock with ptp4l, is it expected that the value of > dpoll be approximately the same as the PTP delay request interval?
They don't have to be the same. In my experience, a PHC synchronized over PTP to a master is more stable than the system clock, so if I'm trying to get the best accuracy, I use a dpoll shorter than the PTP sync interval. I'd recommend to keep dpoll + 2 <= poll, so the median filter has at least 4 samples to work with. -- 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.
