systemd.slice - Slice unit configuration
A unit configuration file whose name ends in ".slice" encodes
information about a slice which 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 it.
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
user.slice. See systemd.special
(5) for more information.
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)
See the New Control Group Interfaces
 for an introduction on how to
make use of slice units from programs.
Slice units automatically gain dependencies of type After=
on their immediate parent slice unit.
is used in the "[Unit]"
section, slice units will implicitly have dependencies of type
on shutdown.target. 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.
- New Control Group Interfaces