# systemd.slice(5) - man - phpman

[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:

       •   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:

       •   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)