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systemd/man/systemd.slice.xml
Lennart Poettering 3802a3d3d7 man: add emacs header to get correct indention in nxml-mode for the manpage XML files that use 2ch indenting
In the long run we really should figure out if we want to stick with 8ch
or 2ch indenting, and not continue with half-and-half. For now, just
make emacs aware of the files that use 2ch indenting.
2014-11-21 20:44:48 +01:00

122 lines
5.2 KiB
XML

<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
<?xml-stylesheet type="text/xsl" href="http://docbook.sourceforge.net/release/xsl/current/xhtml/docbook.xsl"?>
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
<!--
This file is part of systemd.
Copyright 2013 Zbigniew Jędrzejewski-Szmek
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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You should have received a copy of the GNU Lesser General Public License
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-->
<refentry id="systemd.slice">
<refentryinfo>
<title>systemd.slice</title>
<productname>systemd</productname>
<authorgroup>
<author>
<contrib>Developer</contrib>
<firstname>Lennart</firstname>
<surname>Poettering</surname>
<email>lennart@poettering.net</email>
</author>
</authorgroup>
</refentryinfo>
<refmeta>
<refentrytitle>systemd.slice</refentrytitle>
<manvolnum>5</manvolnum>
</refmeta>
<refnamediv>
<refname>systemd.slice</refname>
<refpurpose>Slice unit configuration</refpurpose>
</refnamediv>
<refsynopsisdiv>
<para><filename><replaceable>slice</replaceable>.slice</filename></para>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para>A unit configuration file whose name ends in
<literal>.slice</literal> encodes information about a slice which
is a concept for hierarchically managing resources of a group of
processes. This management is performed by creating a node in the
Linux Control Group (cgroup) tree. Units that manage processes
(primarily scope and service units) may be assigned to a specific
slice. For each slice, certain resource limits may be set that
apply to all processes of all units contained in that
slice. Slices are organized hierarchically in a tree. The name of
the slice encodes the location in the tree. The name consists of a
dash-separated series of names, which describes the path to the
slice from the root slice. The root slice is named,
<filename>-.slice</filename>. Example:
<filename>foo-bar.slice</filename> is a slice that is located
within <filename>foo.slice</filename>, which in turn is located in
the root slice <filename>-.slice</filename>.
</para>
<para>By default, service and scope units are placed in
<filename>system.slice</filename>, virtual machines and containers
registered with
<citerefentry><refentrytitle>systemd-machined</refentrytitle><manvolnum>1</manvolnum></citerefentry>
are found in <filename>machine.slice</filename>, and user sessions
handled by
<citerefentry><refentrytitle>systemd-logind</refentrytitle><manvolnum>1</manvolnum></citerefentry>
in <filename>user.slice</filename>. See
<citerefentry><refentrytitle>systemd.special</refentrytitle><manvolnum>5</manvolnum></citerefentry>
for more information.</para>
<para>See
<citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>
for the common options of all unit configuration
files. The common configuration items are configured
in the generic [Unit] and [Install] sections. The
slice specific configuration options are configured in
the [Slice] section. Currently, only generic resource control settings
as described in
<citerefentry><refentrytitle>systemd.resource-control</refentrytitle><manvolnum>7</manvolnum></citerefentry> are allowed.
</para>
<para>Unless <varname>DefaultDependencies=false</varname>
is used, slice units will implicitly have dependencies of
type <varname>Conflicts=</varname> and
<varname>Before=</varname> on
<filename>shutdown.target</filename>. These ensure
that slice units are removed prior to system
shutdown. Only slice units involved with early boot or
late system shutdown should disable this option.
</para>
</refsect1>
<refsect1>
<title>See Also</title>
<para>
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd.resource-control</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd.scope</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd.special</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd.directives</refentrytitle><manvolnum>7</manvolnum></citerefentry>
</para>
</refsect1>
</refentry>