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699a810b ZJS |
1 | <?xml version='1.0'?> |
2 | <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" | |
eea10b26 | 3 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" > |
db9ecf05 | 4 | <!-- SPDX-License-Identifier: LGPL-2.1-or-later --> |
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5 | |
6 | <refentry id="org.freedesktop.oom1" conditional='ENABLE_OOMD' | |
7 | xmlns:xi="http://www.w3.org/2001/XInclude"> | |
8 | <refentryinfo> | |
9 | <title>org.freedesktop.oom1</title> | |
10 | <productname>systemd</productname> | |
11 | </refentryinfo> | |
12 | ||
13 | <refmeta> | |
14 | <refentrytitle>org.freedesktop.oom1</refentrytitle> | |
15 | <manvolnum>5</manvolnum> | |
16 | </refmeta> | |
17 | ||
18 | <refnamediv> | |
19 | <refname>org.freedesktop.oom1</refname> | |
20 | <refpurpose>The D-Bus interface of systemd-oomd</refpurpose> | |
21 | </refnamediv> | |
22 | ||
23 | <refsect1> | |
24 | <title>Introduction</title> | |
25 | ||
26 | <para> | |
27 | <citerefentry><refentrytitle>systemd-oomd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry> | |
28 | is a system service which implements a userspace out-of-memory (OOM) killer. This page describes the | |
29 | D-Bus interface.</para> | |
30 | </refsect1> | |
31 | ||
32 | <refsect1> | |
33 | <title>The Manager Object</title> | |
34 | ||
35 | <para>The service exposes the following interfaces on the Manager object on the bus:</para> | |
36 | ||
37 | <programlisting executable="systemd-oomd" node="/org/freedesktop/oom1" interface="org.freedesktop.oom1.Manager"> | |
38 | node /org/freedesktop/oom1 { | |
39 | interface org.freedesktop.oom1.Manager { | |
40 | methods: | |
41 | DumpByFileDescriptor(out h fd); | |
d784a8d4 OS |
42 | signals: |
43 | Killed(s cgroup, | |
44 | s reason); | |
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45 | }; |
46 | interface org.freedesktop.DBus.Peer { ... }; | |
47 | interface org.freedesktop.DBus.Introspectable { ... }; | |
48 | interface org.freedesktop.DBus.Properties { ... }; | |
49 | }; | |
50 | </programlisting> | |
51 | ||
52 | <!--method DumpByFileDescriptor is not documented!--> | |
53 | ||
54 | <!--Autogenerated cross-references for systemd.directives, do not edit--> | |
55 | ||
56 | <variablelist class="dbus-interface" generated="True" extra-ref="org.freedesktop.oom1.Manager"/> | |
57 | ||
58 | <variablelist class="dbus-interface" generated="True" extra-ref="org.freedesktop.oom1.Manager"/> | |
59 | ||
60 | <variablelist class="dbus-method" generated="True" extra-ref="DumpByFileDescriptor()"/> | |
61 | ||
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62 | <variablelist class="dbus-signal" generated="True" extra-ref="Killed"/> |
63 | ||
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64 | <!--End of Autogenerated section--> |
65 | ||
66 | <refsect2> | |
67 | <title>Methods</title> | |
68 | ||
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69 | <para><function>Killed</function> signal is sent when any cgroup is killed by oomd.</para> |
70 | <para>Note that more reasons will be added in the future, and the table below will be expanded accordingly.</para> | |
71 | <table> | |
72 | <title>Killing reasons</title> | |
73 | <tgroup cols="2" align="left" colsep="1" rowsep="1"> | |
74 | <colspec colname="reason"/> | |
75 | <colspec colname="description"/> | |
76 | <thead> | |
77 | <row> | |
78 | <entry>Reason</entry> | |
79 | <entry>Description</entry> | |
80 | </row> | |
81 | </thead> | |
82 | <tbody> | |
83 | <row> | |
84 | <entry>memory-used</entry> | |
85 | <entry>Application took too much memory and swap.</entry> | |
86 | </row> | |
87 | <row> | |
88 | <entry>memory-pressure</entry> | |
89 | <entry>Application took enough memory and swap to cause sufficient slowdown of other applications.</entry> | |
90 | </row> | |
91 | </tbody> | |
92 | </tgroup> | |
93 | </table> | |
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94 | </refsect2> |
95 | </refsect1> | |
96 | ||
e4239a34 | 97 | <xi:include href="org.freedesktop.locale1.xml" xpointer="versioning"/> |
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98 | |
99 | <refsect1> | |
100 | <title>History</title> | |
101 | <refsect2> | |
102 | <title>The Manager Object</title> | |
103 | <para><function>Killed</function> was added in version 252.</para> | |
104 | </refsect2> | |
105 | </refsect1> | |
699a810b | 106 | </refentry> |