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Diffstat (limited to 'documentation/dev-manual/init-manager.rst')
-rw-r--r-- | documentation/dev-manual/init-manager.rst | 49 |
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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. | ||