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doc: add more recommendations for best stability to FAQ

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Miroslav Lichvar 2019-04-30 14:45:23 +02:00
parent 099aaf2cb1
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doc/faq.adoc
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@ -217,6 +217,12 @@ server ntp.local minpoll 0 maxpoll 0 xleave
hwtimestamp eth0
----
For best stability, the CPU should be running at a constant frequency (i.e.
disabled power saving and performance boosting). Energy-Efficient Ethernet
(EEE) should be disabled in the network. The switches should be configured to
prioritize NTP packets, especially if the network is expected to be heavily
loaded.
If it is acceptable for NTP clients in the network to send requests at an
excessive rate, a sub-second polling interval may be specified. A median filter
can be enabled in order to update the clock at a reduced rate with more stable