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<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>systemd.slice</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><style>
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</style><a href="index.html">Index </a>·
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<a href="systemd.directives.html">Directives </a>·
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<a href="../python-systemd/index.html">Python </a>·
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<a href="../libudev/index.html">libudev </a>·
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<a href="../libudev/index.html">gudev </a><span style="float:right">systemd 219</span><hr><div class="refentry"><a name="systemd.slice"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>systemd.slice — Slice unit configuration</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><p><code class="filename"><em class="replaceable"><code>slice</code></em>.slice</code></p></div><div class="refsect1"><a name="idm140192034440448"></a><h2 id="Description">Description<a class="headerlink" title="Permalink to this headline" href="#Description">¶</a></h2><p>A unit configuration file whose name ends in
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"<code class="literal">.slice</code>" encodes information about a slice which
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is a concept for hierarchically managing resources of a group of
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processes. This management is performed by creating a node in the
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Linux Control Group (cgroup) tree. Units that manage processes
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(primarily scope and service units) may be assigned to a specific
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slice. For each slice, certain resource limits may be set that
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apply to all processes of all units contained in that
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slice. Slices are organized hierarchically in a tree. The name of
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the slice encodes the location in the tree. The name consists of a
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dash-separated series of names, which describes the path to the
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slice from the root slice. The root slice is named,
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<code class="filename">-.slice</code>. Example:
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<code class="filename">foo-bar.slice</code> is a slice that is located
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within <code class="filename">foo.slice</code>, which in turn is located in
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the root slice <code class="filename">-.slice</code>.
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</p><p>By default, service and scope units are placed in
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<code class="filename">system.slice</code>, virtual machines and containers
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registered with
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<a href="systemd-machined.html"><span class="citerefentry"><span class="refentrytitle">systemd-machined</span>(1)</span></a>
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are found in <code class="filename">machine.slice</code>, and user sessions
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handled by
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<a href="systemd-logind.html"><span class="citerefentry"><span class="refentrytitle">systemd-logind</span>(1)</span></a>
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in <code class="filename">user.slice</code>. See
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<a href="systemd.special.html"><span class="citerefentry"><span class="refentrytitle">systemd.special</span>(5)</span></a>
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for more information.</p><p>See
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<a href="systemd.unit.html"><span class="citerefentry"><span class="refentrytitle">systemd.unit</span>(5)</span></a>
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for the common options of all unit configuration
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files. The common configuration items are configured
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in the generic [Unit] and [Install] sections. The
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slice specific configuration options are configured in
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the [Slice] section. Currently, only generic resource control settings
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as described in
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<a href="systemd.resource-control.html"><span class="citerefentry"><span class="refentrytitle">systemd.resource-control</span>(7)</span></a> are allowed.
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</p><p>Unless <code class="varname">DefaultDependencies=false</code>
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is used, slice units will implicitly have dependencies of
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type <code class="varname">Conflicts=</code> and
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<code class="varname">Before=</code> on
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<code class="filename">shutdown.target</code>. These ensure
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that slice units are removed prior to system
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shutdown. Only slice units involved with early boot or
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late system shutdown should disable this option.
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</p></div><div class="refsect1"><a name="idm140192038323424"></a><h2 id="See Also">See Also<a class="headerlink" title="Permalink to this headline" href="#See%20Also">¶</a></h2><p>
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<a href="systemd.html"><span class="citerefentry"><span class="refentrytitle">systemd</span>(1)</span></a>,
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<a href="systemd.unit.html"><span class="citerefentry"><span class="refentrytitle">systemd.unit</span>(5)</span></a>,
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<a href="systemd.resource-control.html"><span class="citerefentry"><span class="refentrytitle">systemd.resource-control</span>(5)</span></a>,
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<a href="systemd.service.html"><span class="citerefentry"><span class="refentrytitle">systemd.service</span>(5)</span></a>,
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<a href="systemd.scope.html"><span class="citerefentry"><span class="refentrytitle">systemd.scope</span>(5)</span></a>,
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<a href="systemd.special.html"><span class="citerefentry"><span class="refentrytitle">systemd.special</span>(7)</span></a>,
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<a href="systemd.directives.html"><span class="citerefentry"><span class="refentrytitle">systemd.directives</span>(7)</span></a>
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</p></div></div></body></html>
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