I checked my home FreeBSD 8.2 NTP server for the clk_jitter reads zero bug,
and yes, I see it too when using PPS kernel discipline.
server 127.127.22.1 flag3 1
http://www.eecis.udel.edu/~mills/ntp/html/drivers/driver22.html
So, I need to understand what "Controls the kernel PPS discipline" means and
what the differences in code are between disabled, (default), and enabled
are. I also need to understand the importance of the clock jitter
statistic; I notice that system jitter is still reported with kernel PPS
discipline enabled. If system jitter is less --yet to be determined--with
kernel PPS discipline enabled, wouldn't that imply that kernel PPS would be
prefered, regardless of reported clock jitter? Again, I have been mostly
concerned with the clock offset and the stability of the frequency. I need
to understand the importance and differences in both clock jitter and system
jitter?
Regards,
Ed
==========================================
More later, but could you please add your comments to bug 2314.
https://support.ntp.org/bugs/show_bug.cgi?id=2314
Thanks,
David
--
SatSignal Software - Quality software written to your requirements
Web: http://www.satsignal.eu
Email: [email protected]
_______________________________________________
questions mailing list
[email protected]
http://lists.ntp.org/listinfo/questions
