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

Fixes: #13328
2020-01-17 10:08:23 +01:00
parent eec68a1a08
commit d524094b6b
1 changed files with 7 additions and 1 deletions
@@ -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>