On Thu, Jun 7, 2012 at 10:30 AM, DaveB <g8...@uko2.co.uk> wrote: > pi@raspberrypi:~$ ntpq -p > remote refid st t when poll reach delay offset jitter > ======================================================================== > *192.168.42.24 .GPS. 1 u 362 1024 377 0.563 0.669 0.284 > time.xilo.net 82.219.4.30 3 - 5h 1024 0 21.571 13.885 0.000 > dns0.rmplc.co 195.66.241.3 2 - 5h 1024 0 2019.75 -1000.8 0.000 > > If those delay/offset and jitter figures are in milli seconds (?) could > that be down to the USB hosted LAN port on the Pi? The same figures for > the BSD box at 192.168.42.24 are 0.000 0.004 and 0.002 respectively, I > just remoted into that and checked.
Yes, having your network behind a USB adapter is going to degrade performance compared to a PCI-connected NIC. A half-millisecond delay is quite high for 100Mbit LAN. Offset and jitter in the same range are to be expected. The output of: ntpq -c "rv 0 version precision" would shed a bit more light on which ntpd version and the time to read the clock on that system. Cheers, Dave Hart _______________________________________________ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions
