SYSTEMD.SLICE(5)                                                   systemd.slice                                                  SYSTEMD.SLICE(5)

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(1) are
       found in machine.slice, and user sessions handled by systemd-logind(1) in user.slice. See systemd.special(5) 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.

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), 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/

systemd 237                                                                                                                       SYSTEMD.SLICE(5)