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man: don't mention IOSchedulingClass=none anymore in the docs

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Let's not mention a redundant setting of "none". Let's instead only
mention "best-effort", which is the same. Also mention the default
settings properly.

(Also, while we are at it, don#t document the numeric alias, that's
totally redundant and harder to use, so no need to push people towards
it.)
This commit is contained in:
Lennart Poettering
2021-11-24 16:14:51 +01:00
parent 543497fa34
commit 8880b2bab8
1 changed files with 7 additions and 5 deletions
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man/systemd.exec.xml
+7 -5
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@@ -1140,10 +1140,11 @@ CapabilityBoundingSet=~CAP_B CAP_C</programlisting>
<varlistentry>
<term><varname>IOSchedulingClass=</varname></term>
<listitem><para>Sets the I/O scheduling class for executed processes. Takes an integer between 0 and 3 or one
of the strings <option>none</option>, <option>realtime</option>, <option>best-effort</option> or
<option>idle</option>. If the empty string is assigned to this option, all prior assignments to both
<varname>IOSchedulingClass=</varname> and <varname>IOSchedulingPriority=</varname> have no effect. See
<listitem><para>Sets the I/O scheduling class for executed processes. Takes one of the strings
<option>realtime</option>, <option>best-effort</option> or <option>idle</option>. The kernel's
default scheduling class is <option>best-effort</option> at a priority of 4. If the empty string is
assigned to this option, all prior assignments to both <varname>IOSchedulingClass=</varname> and
<varname>IOSchedulingPriority=</varname> have no effect. See
<citerefentry><refentrytitle>ioprio_set</refentrytitle><manvolnum>2</manvolnum></citerefentry> for
details.</para></listitem>
</varlistentry>
@@ -1156,7 +1157,8 @@ CapabilityBoundingSet=~CAP_B CAP_C</programlisting>
bandwidth is made available to the unit's processes, larger values mean less bandwidth. The available
priorities depend on the selected I/O scheduling class (see above). If the empty string is assigned
to this option, all prior assignments to both <varname>IOSchedulingClass=</varname> and
<varname>IOSchedulingPriority=</varname> have no effect. See
<varname>IOSchedulingPriority=</varname> have no effect. For the kernel's default scheduling class
(<option>best-effort</option>) this defaults to 4. See
<citerefentry><refentrytitle>ioprio_set</refentrytitle><manvolnum>2</manvolnum></citerefentry> for
details.</para></listitem>
</varlistentry>