1ORG.FREEDESKTOP.OOM1(5)      org.freedesktop.oom1      ORG.FREEDESKTOP.OOM1(5)
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NAME

6       org.freedesktop.oom1 - The D-Bus interface of systemd-oomd
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INTRODUCTION

9       systemd-oomd.service(8) is a system service which implements a
10       userspace out-of-memory (OOM) killer. This page describes the D-Bus
11       interface.
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THE MANAGER OBJECT

14       The service exposes the following interfaces on the Manager object on
15       the bus:
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17           node /org/freedesktop/oom1 {
18             interface org.freedesktop.oom1.Manager {
19               methods:
20                 DumpByFileDescriptor(out h fd);
21               signals:
22                 Killed(s cgroup,
23                        s reason);
24             };
25             interface org.freedesktop.DBus.Peer { ... };
26             interface org.freedesktop.DBus.Introspectable { ... };
27             interface org.freedesktop.DBus.Properties { ... };
28           };
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34   Methods
35       Killed signal is sent when any cgroup is killed by oomd.
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37       Note that more reasons will be added in the future, and the table below
38       will be expanded accordingly.
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40       Table 1. Killing reasons
41       ┌────────────────┬───────────────────────────┐
42       │Reason          │ Description               │
43       ├────────────────┼───────────────────────────┤
44       │memory-used     │ Application took too much │
45       │                │ memory and swap.          │
46       ├────────────────┼───────────────────────────┤
47       │memory-pressure │ Application took enough   │
48       │                │ memory and swap to cause  │
49       │                │ sufficient slowdown of    │
50       │                │ other applications.       │
51       └────────────────┴───────────────────────────┘
52

VERSIONING

54       These D-Bus interfaces follow the usual interface versioning
55       guidelines[1].
56

NOTES

58        1. the usual interface versioning guidelines
59           https://0pointer.de/blog/projects/versioning-dbus.html
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63systemd 254                                            ORG.FREEDESKTOP.OOM1(5)
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