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  <a href="../libudev/index.html">gudev </a><span style="float:right">systemd 215</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="idm214176181488"></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
    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
    Linux Control Group (cgroup) tree. Units that manage processes
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    (primarily scope and service units) may be assigned to a specific
    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
    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
    dash-separated series of names, which describes the path to the
    slice from the root slice. The root slice is named,
    <code class="filename">-.slice</code>. Example:
    <code class="filename">foo-bar.slice</code> is a slice that is located
    within <code class="filename">foo.slice</code>, which in turn is located in
    the root slice <code class="filename">-.slice</code>.
    </p><p>By default, service and scope units are placed in
    <code class="filename">system.slice</code>, virtual machines and containers
    registered with
    <a href="systemd-machined.html"><span class="citerefentry"><span class="refentrytitle">systemd-machined</span>(1)</span></a>
    are found in <code class="filename">machine.slice</code>, and user sessions
    handled by
    <a href="systemd-logind.html"><span class="citerefentry"><span class="refentrytitle">systemd-logind</span>(1)</span></a>
    in <code class="filename">user.slice</code>. See
    <a href="systemd.special.html"><span class="citerefentry"><span class="refentrytitle">systemd.special</span>(5)</span></a>
    for more information.</p><p>See
    <a href="systemd.unit.html"><span class="citerefentry"><span class="refentrytitle">systemd.unit</span>(5)</span></a>
    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
    <a href="systemd.resource-control.html"><span class="citerefentry"><span class="refentrytitle">systemd.resource-control</span>(7)</span></a> are allowed.
    </p><p>Unless <code class="varname">DefaultDependencies=false</code>
    is used, slice units will implicitly have dependencies of
    type <code class="varname">Conflicts=</code> and
    <code class="varname">Before=</code> on
    <code class="filename"></code>. 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.
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    </p></div><div class="refsect1"><a name="idm214172331440"></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>,
      <a href="systemd.unit.html"><span class="citerefentry"><span class="refentrytitle">systemd.unit</span>(5)</span></a>,
      <a href="systemd.resource-control.html"><span class="citerefentry"><span class="refentrytitle">systemd.resource-control</span>(5)</span></a>,
      <a href="systemd.service.html"><span class="citerefentry"><span class="refentrytitle">systemd.service</span>(5)</span></a>,
      <a href="systemd.scope.html"><span class="citerefentry"><span class="refentrytitle">systemd.scope</span>(5)</span></a>,
      <a href="systemd.special.html"><span class="citerefentry"><span class="refentrytitle">systemd.special</span>(7)</span></a>,
      <a href="systemd.directives.html"><span class="citerefentry"><span class="refentrytitle">systemd.directives</span>(7)</span></a>