On 12/02/2015 17:00, William Unruh wrote:
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This means that if you are using say a PPS source, which gives
microsecond long term offset, it can take many hours to get there, even
if you or I looking at the offsets could see that it is off by ms after
the first few poll intervals.
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Almost all of my NTP servers were restarted today after downloading and
compiling NTP 4.3.0. From the graphs plotting offset versus time:
http://www.satsignal.eu/mrtg/performance_ntp.php
it seems to me that for the PPS-drived devices, 10 microseconds offset
was reached within a few minutes, and full stability within an hour (say
within a couple of microseconds). Yes, it's not immediate, but it's not
"many hours" that I see here.
--
Cheers,
David
Web: http://www.satsignal.eu
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