From: Miroslav Lichvar Date: Tue, 30 Apr 2019 12:45:23 +0000 (+0200) Subject: doc: add more recommendations for best stability to FAQ X-Git-Tag: 3.5-pre1~1 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=94b014865cf62cccfb24b268aaa2e13dc3f92df3;p=thirdparty%2Fchrony.git doc: add more recommendations for best stability to FAQ --- diff --git a/doc/faq.adoc b/doc/faq.adoc index b07c5501..318b418a 100644 --- a/doc/faq.adoc +++ b/doc/faq.adoc @@ -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