On Jul 21, 1:55 pm, "David J Taylor" <david-tay...@blueyonder.not-this- part.nor-this.co.uk.invalid> wrote: > paul wrote: > > [] > > > 10 Windows boxes with offset no greater than 5 ms from abs time is > > fair enough for me. I will try a local stratum-1 NTP server. > > > Cheers, > > Paul > > Paul, > > Just for interest, the ntpd.conf for my PC Narvik contains lines like: > > _______________________________________ > server 192.168.0.2 iburst maxpoll 6 prefer > server 192.168.0.7 maxpoll 6 > > server 0.uk.pool.ntp.org minpoll 10 > server 1.uk.pool.ntp.org minpoll 10 > server 0.europe.pool.ntp.org minpoll 10 > server 1.europe.pool.ntp.org minpoll 10 > _______________________________________ > > The first two are my local stratum-1 servers (GPS/PPS to Windows XP > systems, ideally with a light or relatively constant load), and are set > for 64s polling (maxpoll 6). To avoid hitting the Internet servers with > requests as often, they are set for minpoll 10 (1024s), as they are for > backup in the case that both my stratum-1 servers fail. > > A direct connection from the serial GPS/PPS puck is the best, but even if > you need to go through a serial-USB convertor performance may be adequate > (I saw about 160us jitter). > > Cheers, > David
Hi David, I am wondering is there any other means to profile NTP performance, like some kind of hardware setup to measure time offset of two machine? _______________________________________________ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
