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man: underline that AccuracySec= is about coalescing timer events, nothing else

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Fixes: #13328
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Lennart Poettering 2020-01-16 16:47:56 +01:00
parent eec68a1a08
commit d524094b6b
1 changed files with 7 additions and 1 deletions
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8
man/systemd.timer.xml
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@ -225,7 +225,13 @@
<citerefentry><refentrytitle>prctl</refentrytitle><manvolnum>2</manvolnum></citerefentry>
for details. To optimize power consumption, make sure to set
this value as high as possible and as low as
necessary.</para></listitem>
necessary.</para>
<para>Note that this setting is primarily a power saving option that allows coalescing CPU
wake-ups. It should not be confused with <varname>RandomizedDelaySec=</varname> (see below) which
adds a random value to the time the timer shall elapse next and whose purpose is the opposite: to
stretch elapsing of timer events over a longer period to reduce workload spikes. For further details
and explanations and how both settings play together, see below.</para></listitem>
</varlistentry>
<varlistentry>