> > In FreeBSD you get all that for free: > > > > > > https://papers.freebsd.org/2002/phk-timecounters.files/timecounter.pdf > > > > "It is painfully obvious that the interrupt latency is the dominant > noise factor in PPS timestamping in the second case."
I wrote something this evening that just busy-loops waiting for a raising edge and then writes down the current time to feed that to ntp. My testing is of course still running but the program is at https://github.com/folkertvanheusden/poll-pps I delete it if it is not working so be quick :-) _______________________________________________ time-nuts mailing list -- [email protected] -- To unsubscribe send an email to [email protected] To unsubscribe, go to and follow the instructions there.
