[ntp:questions] ntp_adjtime and interval

Miguel Gonçalves miguel.barbosa.goncalves at gmail.com
Tue May 14 23:41:41 UTC 2013


I am trying to figure out why NTP takes so long to react to oscillator

When checking ntptime on startup I see that the NTP daemon is using
PLL and starts the adjustment interval at 8 s. It then increases to
16, 32, 64, 128 and stops at 256.

I read in the documentation that this limit should be 128 but is now 256.

--- start from http://www.ntp.org/ntpfaq/NTP-s-config-adv.htm ---
intervals 57 says that there were 57 calibration intervals. When PPS
pulses are arriving, this number should increase. Each frequency
adjustment requires a good calibration interval. The length of the
current calibration interval can be found as interval 128 s (128
seconds is the default maximum length). Remaining numbers count
abnormal conditions as explained below.
--- end ---

How can I make it stop earlier? At 64 s for example?


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