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| author | Lennart Poettering <lennart@poettering.net> | 2021-05-26 11:23:06 +0200 |
|---|---|---|
| committer | Luca Boccassi <luca.boccassi@gmail.com> | 2021-05-26 13:42:13 +0200 |
| commit | 7dbc38db509f153256d3a3bfe6cbb26e2731c741 (patch) | |
| tree | f4038a00a30a1bf402dc42605608b2d3109bbe68 /man/systemd.exec.xml | |
| parent | README: drop reference to Kinvolk (diff) | |
| download | systemd-7dbc38db509f153256d3a3bfe6cbb26e2731c741.tar.xz systemd-7dbc38db509f153256d3a3bfe6cbb26e2731c741.zip | |
man: explicit say for priority/weight values whether more is more or less
Fixes: #17523
Diffstat (limited to 'man/systemd.exec.xml')
| -rw-r--r-- | man/systemd.exec.xml | 30 |
1 files changed, 18 insertions, 12 deletions
diff --git a/man/systemd.exec.xml b/man/systemd.exec.xml index b2fbb3b644..893b56d93a 100644 --- a/man/systemd.exec.xml +++ b/man/systemd.exec.xml @@ -1036,8 +1036,10 @@ CapabilityBoundingSet=~CAP_B CAP_C</programlisting> <varlistentry> <term><varname>Nice=</varname></term> - <listitem><para>Sets the default nice level (scheduling priority) for executed processes. Takes an integer - between -20 (highest priority) and 19 (lowest priority). See + <listitem><para>Sets the default nice level (scheduling priority) for executed processes. Takes an + integer between -20 (highest priority) and 19 (lowest priority). In case of resource contention, + smaller values mean more resources will be made available to the unit's processes, larger values mean + less resources will be made available. See <citerefentry><refentrytitle>setpriority</refentrytitle><manvolnum>2</manvolnum></citerefentry> for details.</para></listitem> </varlistentry> @@ -1054,11 +1056,13 @@ CapabilityBoundingSet=~CAP_B CAP_C</programlisting> <varlistentry> <term><varname>CPUSchedulingPriority=</varname></term> - <listitem><para>Sets the CPU scheduling priority for executed processes. The available priority range depends - on the selected CPU scheduling policy (see above). For real-time scheduling policies an integer between 1 - (lowest priority) and 99 (highest priority) can be used. See - <citerefentry project='man-pages'><refentrytitle>sched_setscheduler</refentrytitle><manvolnum>2</manvolnum></citerefentry> for - details. </para></listitem> + <listitem><para>Sets the CPU scheduling priority for executed processes. The available priority range + depends on the selected CPU scheduling policy (see above). For real-time scheduling policies an + integer between 1 (lowest priority) and 99 (highest priority) can be used. In case of CPU resource + contention, smaller values mean less CPU time is made available to the service, larger values mean + more. See <citerefentry + project='man-pages'><refentrytitle>sched_setscheduler</refentrytitle><manvolnum>2</manvolnum></citerefentry> + for details. </para></listitem> </varlistentry> <varlistentry> @@ -1122,11 +1126,13 @@ CapabilityBoundingSet=~CAP_B CAP_C</programlisting> <varlistentry> <term><varname>IOSchedulingPriority=</varname></term> - <listitem><para>Sets the I/O scheduling priority for executed processes. Takes an integer between 0 (highest - priority) and 7 (lowest priority). 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 <citerefentry><refentrytitle>ioprio_set</refentrytitle><manvolnum>2</manvolnum></citerefentry> for + <listitem><para>Sets the I/O scheduling priority for executed processes. Takes an integer between 0 + (highest priority) and 7 (lowest priority). In case of I/O contention, smaller values mean more I/O + 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 + <citerefentry><refentrytitle>ioprio_set</refentrytitle><manvolnum>2</manvolnum></citerefentry> for details.</para></listitem> </varlistentry> |