[ntp:questions] Keeping NTP Honest

David Woolley david at ex.djwhome.demon.co.uk.invalid
Wed Jul 15 20:59:02 UTC 2009

John Hasler wrote:
> Evandro Menezes writes:
>> In the real world, ambient temperature changes frequently even in
>> air-conditioned environments, system load affect its internal
>> temperature, network load affects packet jitter, etc.  And all this also
>> affects a system's peers, compounding the issue of NTP's slow reaction
>> time.
> This is all noise.  You want to filter it out, not track it.

The problem is that NTP does track it.  If the temperature changes, the 
rate at which NTP's clock ticks changes and it takes a long time for it 
to decide that its clock is wrong, rather than the rest of the world.

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