# phpman > info > systemd.slice

[SYSTEMD.SLICE(5)](https://www.chedong.com/phpMan.php/man/SYSTEMD.SLICE/5/markdown)                 systemd.slice                [SYSTEMD.SLICE(5)](https://www.chedong.com/phpMan.php/man/SYSTEMD.SLICE/5/markdown)

NAME
       systemd.slice - Slice unit configuration

SYNOPSIS
       slice.slice

DESCRIPTION
       A unit configuration file whose name ends in ".slice" encodes
       information about a slice unit. A slice unit 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 -.slice.
       Example: foo-bar.slice is a slice that is located within foo.slice,
       which in turn is located in the root slice -.slice.

       Note that slice units cannot be templated, nor is possible to add
       multiple names to a slice unit by creating additional symlinks to its
       unit file.

       By default, service and scope units are placed in system.slice, virtual
       machines and containers registered with [systemd-machined(8)](https://www.chedong.com/phpMan.php/man/systemd-machined/8/markdown) are found
       in machine.slice, and user sessions handled by [systemd-logind(8)](https://www.chedong.com/phpMan.php/man/systemd-logind/8/markdown) in
       user.slice. See [systemd.special(7)](https://www.chedong.com/phpMan.php/man/systemd.special/7/markdown) for more information.

       See [systemd.unit(5)](https://www.chedong.com/phpMan.php/man/systemd.unit/5/markdown) 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 [systemd.resource-control(5)](https://www.chedong.com/phpMan.php/man/systemd.resource-control/5/markdown) are
       allowed.

       See the New Control Group Interfaces[1] for an introduction on how to
       make use of slice units from programs.

AUTOMATIC DEPENDENCIES
   Implicit Dependencies
       The following dependencies are implicitly added:

       o   Slice units automatically gain dependencies of type After= and
           Requires= on their immediate parent slice unit.

   Default Dependencies
       The following dependencies are added unless DefaultDependencies=no is
       set:

       o   Slice units will automatically have dependencies of type Conflicts=
           and Before= on shutdown.target. These ensure that slice units are
           removed prior to system shutdown. Only slice units involved with
           late system shutdown should disable DefaultDependencies= option.

SEE ALSO
       [systemd(1)](https://www.chedong.com/phpMan.php/man/systemd/1/markdown), [systemd.unit(5)](https://www.chedong.com/phpMan.php/man/systemd.unit/5/markdown), [systemd.resource-control(5)](https://www.chedong.com/phpMan.php/man/systemd.resource-control/5/markdown),
       [systemd.service(5)](https://www.chedong.com/phpMan.php/man/systemd.service/5/markdown), [systemd.scope(5)](https://www.chedong.com/phpMan.php/man/systemd.scope/5/markdown), [systemd.special(7)](https://www.chedong.com/phpMan.php/man/systemd.special/7/markdown),
       [systemd.directives(7)](https://www.chedong.com/phpMan.php/man/systemd.directives/7/markdown)

NOTES
        1. New Control Group Interfaces
           <https://www.freedesktop.org/wiki/Software/systemd/ControlGroupInterface/>

systemd 249                                                   [SYSTEMD.SLICE(5)](https://www.chedong.com/phpMan.php/man/SYSTEMD.SLICE/5/markdown)