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author | Michael Opdenacker <michael.opdenacker@bootlin.com> | 2023-04-28 17:00:28 +0200 |
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committer | Richard Purdie <richard.purdie@linuxfoundation.org> | 2023-05-03 10:00:32 +0100 |
commit | 1db44f2242e87092cf7a85e51ce70593be74f68c (patch) | |
tree | 975057a54fa4394c9107a416d422501adbbedee5 /documentation/dev-manual | |
parent | c4d933a3478de8636d9f3bc790dcbd54b8239ba1 (diff) | |
download | poky-1db44f2242e87092cf7a85e51ce70593be74f68c.tar.gz |
dev-manual: init-manager.rst: add summary
Comparing init managers by features
(From yocto-docs rev: 1039bbe55b5b7375e8dd969940bbd656115a5ab0)
Signed-off-by: Michael Opdenacker <michael.opdenacker@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'documentation/dev-manual')
-rw-r--r-- | documentation/dev-manual/init-manager.rst | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/documentation/dev-manual/init-manager.rst b/documentation/dev-manual/init-manager.rst index fd8747b9b0..b96e011ebf 100644 --- a/documentation/dev-manual/init-manager.rst +++ b/documentation/dev-manual/init-manager.rst | |||
@@ -111,3 +111,52 @@ configuration file:: | |||
111 | Doing so will prevent ``rsyslog`` / ``busybox-syslog`` from being pulled in by | 111 | Doing so will prevent ``rsyslog`` / ``busybox-syslog`` from being pulled in by |
112 | default, leaving only ``systemd-journald``. | 112 | default, leaving only ``systemd-journald``. |
113 | 113 | ||
114 | Summary | ||
115 | ------- | ||
116 | |||
117 | The Yocto Project supports three different initialization managers, offering | ||
118 | increasing levels of complexity and functionality: | ||
119 | |||
120 | .. list-table:: | ||
121 | :widths: 40 20 20 20 | ||
122 | :header-rows: 1 | ||
123 | |||
124 | * - | ||
125 | - BusyBox init | ||
126 | - SysVinit | ||
127 | - systemd | ||
128 | * - Size | ||
129 | - Small | ||
130 | - Small | ||
131 | - Big [#footnote-systemd-size]_ | ||
132 | * - Complexity | ||
133 | - Small | ||
134 | - Medium | ||
135 | - High | ||
136 | * - Support for boot profiles | ||
137 | - No | ||
138 | - Yes ("runlevels") | ||
139 | - Yes ("targets") | ||
140 | * - Services defined as | ||
141 | - Shell scripts | ||
142 | - Shell scripts | ||
143 | - Description files | ||
144 | * - Starting services in parallel | ||
145 | - No | ||
146 | - No | ||
147 | - Yes | ||
148 | * - Setting service resource limits | ||
149 | - No | ||
150 | - No | ||
151 | - Yes | ||
152 | * - Support service isolation | ||
153 | - No | ||
154 | - No | ||
155 | - Yes | ||
156 | * - Integrated logging | ||
157 | - No | ||
158 | - No | ||
159 | - Yes | ||
160 | |||
161 | .. [#footnote-systemd-size] Using systemd increases the ``core-image-minimal`` | ||
162 | image size by 160\% for ``qemux86-64`` on Mickledore (4.2), compared to SysVinit. | ||