On Thu, Feb 03, 2022 at 09:03:38AM -0600, Matthew Eshleman wrote: > The ntpdata for this TM2000B server, as reported from our target embedded > linux device:
> Mode : Server > Stratum : 1 > Poll interval : 1 (2 seconds) > Precision : -10 (0.000976562 seconds) The server is claiming a precision of ~1ms here. That's bad. > Peer delay : 0.000977595 seconds > Peer dispersion : 0.000977595 seconds The client uses the server precision as the minimum for its peer delay and dispersion, so that's where that 1/2+1=1.5ms you see in the sources report is coming from. The specs on the vendor's site claim "HW time stamp", but I suspect it's for PTP only. I don't see any specifications for NTP or PTP accuracy there. -- 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.
