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) are found in machine.slice, and user
       sessions handled by systemd-logind(8) in user.slice. See systemd.special(7) for more
       information.

       See systemd.unit(5) 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) 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), systemd.unit(5), systemd.resource-control(5), systemd.service(5),
       systemd.scope(5), systemd.special(7), systemd.directives(7)

NOTES

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