[ntp:questions] 500ppm - is it too small?

Evandro Menezes evandro at mailinator.com
Fri Aug 14 16:18:51 UTC 2009


It's not so much a question of clock error as the ability of NTP
converging too slowly.  If it could slew by more than 500PPM, than it
could even avoid time steps, especially backwards.

It seems that being able to slew more than 500PPM is what makes Chrony
perform so much better than NTP in adverse conditions.

I'm starting to wonder if NTP actually stands for "standard (normal)
temperature and pressure", to hint at its ideal conditions
design... :-)




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