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reference: make driftfile update interval configurable

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Add interval option to the driftfile directive to specify the minimum
interval between updates of the recorded frequency offset and skew.
This commit is contained in:
Miroslav Lichvar
2024-11-12 16:01:03 +01:00
parent 837323d687
commit d9d97f76d7
5 changed files with 39 additions and 10 deletions
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6
doc/chrony.conf.adoc
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@@ -1136,7 +1136,7 @@ The maximum allowed slew rate can be set by the <<maxslewrate,*maxslewrate*>>
directive. The current remaining correction is shown in the
<<chronyc.adoc#tracking,*tracking*>> report as the *System time* value.
[[driftfile]]*driftfile* _file_::
[[driftfile]]*driftfile* _file_ [*interval* _interval_]::
One of the main activities of the *chronyd* program is to work out the rate at
which the system clock gains or loses time relative to real time.
+
@@ -1155,6 +1155,10 @@ microseconds in reality (so the true time has only advanced by 999900
microseconds). The second is an estimate of the error bound around the first
value in which the true rate actually lies.
+
The *interval* option specifies the minimum interval between updates of the
file in seconds. The file is written only on an update of the local clock.
The default interval is 3600 seconds.
+
An example of the driftfile directive is:
+
----