</refnamediv>
<refsynopsisdiv>
- <para><filename>/etc/systemd/oomd.conf</filename></para>
- <para><filename>/etc/systemd/oomd.conf.d/*.conf</filename></para>
- <para><filename>/usr/lib/systemd/oomd.conf.d/*.conf</filename></para>
+ <para><simplelist>
+ <member><filename>/etc/systemd/oomd.conf</filename></member>
+ <member><filename>/etc/systemd/oomd.conf.d/*.conf</filename></member>
+ <member><filename>/usr/lib/systemd/oomd.conf.d/*.conf</filename></member>
+ </simplelist></para>
</refsynopsisdiv>
<refsect1>
<variablelist class='config-directives'>
<varlistentry>
- <term><varname>SwapUsedLimitPercent=</varname></term>
-
- <listitem><para>Sets the limit for swap usage on the system before <command>systemd-oomd</command> will
- take action. If the percentage of swap used on the system is more than what is defined here,
- <command>systemd-oomd</command> will act on eligible descendant cgroups, starting from the ones with the
- highest swap usage to the lowest swap usage. Which cgroups are monitored and what
- action gets taken depends on what the unit has configured for <varname>ManagedOOMSwap=</varname>.
- Takes a percentage value between 0% and 100%, inclusive. Defaults to 90%.</para></listitem>
+ <term><varname>SwapUsedLimit=</varname></term>
+
+ <listitem><para>Sets the limit for memory and swap usage on the system before <command>systemd-oomd</command>
+ will take action. If the fraction of memory used and the fraction of swap used on the system are both more than
+ what is defined here, <command>systemd-oomd</command> will act on eligible descendant control groups with swap
+ usage greater than 5% of total swap, starting from the ones with the highest swap usage. Which
+ control groups are monitored and what action gets taken depends on what the unit has configured for
+ <varname>ManagedOOMSwap=</varname>. Takes a value specified in percent (when suffixed with "%"),
+ permille ("‰") or permyriad ("‱"), between 0% and 100%, inclusive. Defaults to 90%.</para>
+
+ <xi:include href="version-info.xml" xpointer="v247"/></listitem>
</varlistentry>
<varlistentry>
- <term><varname>DefaultMemoryPressureLimitPercent=</varname></term>
-
- <listitem><para>Sets the limit for memory pressure on the unit's cgroup before <command>systemd-oomd</command>
- will take action. A unit can override this value with <varname>ManagedOOMMemoryPressureLimitPercent=</varname>.
- The memory pressure for this property represents the fraction of time in a 10 second window in which all tasks
- in the cgroup were delayed. For each monitored cgroup, if the memory pressure on that cgroup exceeds the
- limit set for longer than the duration set by <varname>DefaultMemoryPressureDurationSec=</varname>,
- <command>systemd-oomd</command> will act on eligible descendant cgroups,
- starting from the ones with the most reclaim activity to the least reclaim activity. Which cgroups are
- monitored and what action gets taken depends on what the unit has configured for
- <varname>ManagedOOMMemoryPressure=</varname>. Takes a percentage value between 0% and 100%, inclusive.
- Defaults to 60%.</para></listitem>
+ <term><varname>DefaultMemoryPressureLimit=</varname></term>
+
+ <listitem><para>Sets the limit for memory pressure on the unit's control group before
+ <command>systemd-oomd</command> will take action. A unit can override this value with
+ <varname>ManagedOOMMemoryPressureLimit=</varname>. The memory pressure for this property represents
+ the fraction of time in a 10 second window in which all tasks in the control group were delayed. For
+ each monitored control group, if the memory pressure on that control group exceeds the limit set for
+ longer than the duration set by <varname>DefaultMemoryPressureDurationSec=</varname>,
+ <command>systemd-oomd</command> will act on eligible descendant control groups, starting from the
+ ones with the most reclaim activity to the least reclaim activity. Which control groups are monitored
+ and what action gets taken depends on what the unit has configured for
+ <varname>ManagedOOMMemoryPressure=</varname>. Takes a fraction specified in the same way as
+ <varname>SwapUsedLimit=</varname> above. Defaults to 60%.</para>
+
+ <xi:include href="version-info.xml" xpointer="v247"/></listitem>
</varlistentry>
<varlistentry>
<term><varname>DefaultMemoryPressureDurationSec=</varname></term>
- <listitem><para>Sets the amount of time a unit's cgroup needs to have exceeded memory pressure limits before
- <command>systemd-oomd</command> will take action. Memory pressure limits are defined by
- <varname>DefaultMemoryPressureLimitPercent=</varname> and <varname>ManagedOOMMemoryPressureLimitPercent=</varname>.
- Defaults to 30 seconds when this property is unset or set to 0.</para></listitem>
+ <listitem><para>Sets the amount of time a unit's control group needs to have exceeded memory pressure
+ limits before <command>systemd-oomd</command> will take action. Memory pressure limits are defined by
+ <varname>DefaultMemoryPressureLimit=</varname> and <varname>ManagedOOMMemoryPressureLimit=</varname>.
+ Must be set to 0, or at least 1 second. Defaults to 30 seconds when unset or 0.</para>
+
+ <xi:include href="version-info.xml" xpointer="v248"/></listitem>
</varlistentry>
</variablelist>