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NAME | SYNOPSIS | DESCRIPTION | AUTOMATIC DEPENDENCIES | SEE ALSO | NOTES | COLOPHON |
SYSTEMD.SLICE(5) systemd.slice SYSTEMD.SLICE(5)
systemd.slice - Slice unit configuration
slice.slice
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.
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.
systemd(1), systemd.unit(5), systemd.resource-control(5),
systemd.service(5), systemd.scope(5), systemd.special(7),
systemd.directives(7)
1. New Control Group Interfaces
https://www.freedesktop.org/wiki/Software/systemd/ControlGroupInterface/
This page is part of the systemd (systemd system and service manager)
project. Information about the project can be found at
⟨http://www.freedesktop.org/wiki/Software/systemd⟩. If you have a bug
report for this manual page, see
⟨http://www.freedesktop.org/wiki/Software/systemd/#bugreports⟩. This
page was obtained from the project's upstream Git repository
⟨https://github.com/systemd/systemd.git⟩ on 2020-08-13. (At that
time, the date of the most recent commit that was found in the repos‐
itory was 2020-08-11.) If you discover any rendering problems in
this HTML version of the page, or you believe there is a better or
more up-to-date source for the page, or you have corrections or
improvements to the information in this COLOPHON (which is not part
of the original manual page), send a mail to man-pages@man7.org
systemd 246 SYSTEMD.SLICE(5)
Pages that refer to this page: init(1) , journalctl(1) , systemd(1) , systemd-nspawn(1) , systemd-run(1) , sd_bus_creds_get_audit_login_uid(3) , sd_bus_creds_get_audit_session_id(3) , sd_bus_creds_get_cgroup(3) , sd_bus_creds_get_cmdline(3) , sd_bus_creds_get_comm(3) , sd_bus_creds_get_description(3) , sd_bus_creds_get_egid(3) , sd_bus_creds_get_euid(3) , sd_bus_creds_get_exe(3) , sd_bus_creds_get_fsgid(3) , sd_bus_creds_get_fsuid(3) , sd_bus_creds_get_gid(3) , sd_bus_creds_get_owner_uid(3) , sd_bus_creds_get_pid(3) , sd_bus_creds_get_ppid(3) , sd_bus_creds_get_selinux_context(3) , sd_bus_creds_get_session(3) , sd_bus_creds_get_sgid(3) , sd_bus_creds_get_slice(3) , sd_bus_creds_get_suid(3) , sd_bus_creds_get_supplementary_gids(3) , sd_bus_creds_get_tid(3) , sd_bus_creds_get_tid_comm(3) , sd_bus_creds_get_tty(3) , sd_bus_creds_get_uid(3) , sd_bus_creds_get_unique_name(3) , sd_bus_creds_get_unit(3) , sd_bus_creds_get_user_slice(3) , sd_bus_creds_get_user_unit(3) , sd_bus_creds_get_well_known_names(3) , sd_bus_creds_has_bounding_cap(3) , sd_bus_creds_has_effective_cap(3) , sd_bus_creds_has_inheritable_cap(3) , sd_bus_creds_has_permitted_cap(3) , sd_peer_get_cgroup(3) , sd_peer_get_machine_name(3) , sd_peer_get_owner_uid(3) , sd_peer_get_session(3) , sd_peer_get_slice(3) , sd_peer_get_unit(3) , sd_peer_get_user_slice(3) , sd_peer_get_user_unit(3) , sd_pid_get_cgroup(3) , sd_pid_get_machine_name(3) , sd_pid_get_owner_uid(3) , sd_pid_get_session(3) , sd_pid_get_slice(3) , sd_pid_get_unit(3) , sd_pid_get_user_slice(3) , sd_pid_get_user_unit(3) , systemd.resource-control(5) , systemd.service(5) , systemd.unit(5) , systemd-user-runtime-dir(5) , user-runtime-dir.service(5) , user-runtime-dir@.service(5) , user.service(5) , user@.service(5) , 30-systemd-environment-d-generator(7) , systemd.directives(7) , systemd.index(7) , systemd.special(7) , systemd.syntax(7) , pam_systemd(8)