Langue: en

Autres versions - même langue

Version: 2009-03-10 (ubuntu - 24/10/10)

Section: 5 (Format de fichier)


cgrules.conf - libcgroup configuration file


cgrules.conf configuration file is used by libcgroups to define the control groups to which the process belongs to.

The file the contains list of rules which assign to a defined group/user a control group in a subsystem (or control groups in subsystems)

Rules have two formats:

 <user>                  <controllers>           <destination>
 <user>:<process name>   <controllers>           <destination>


user can be:

     - an user name
     - a group name, with @group syntax
     - the wildcard '*', for any user or group
     - '%', which is equivalent to "ditto" (useful for 
       multi-line rules where different cgroups need to be 
       specified for various hierarchies for a single user)

process name is optional and it can be:

     - a process name
     - a full command path of a process

controllers can be:

     - comma separated controller names (no spaces) or 
     - * (for all mounted controllers)

destination can be:

     - path relative to the controller hierarchy (ex. pgrp1/gid1/uid1)

First rule which matches the criteria will be executed.

Any text starting with '#' is considered as a start of comment line and is ignored.


 student         devices         /usergroup/students
the processes of user student in the subsystem 'device' belong to the control group /usergroup/students.
 student:cp       devices         /usergroup/students/cp
the 'cp' command processes of user student in the subsystem 'device' belong to the control group /usergroup/students/cp.
 @admin           *              admingroup/
the processes which belong to group admin in all subsystems belongs to the control group /admingroup.
 peter           cpu             test1/
 %               memory          test2/
First line says Peter's task for cpu controller belongs to test1 control group second line says put Peter's tasks for memory controller belongs to test2/ control group
 *               *               default/ 
all processes belong in all subsystems to the control group default/. Because there is applied the first task which is find - it has a sense to have this row at the end of list to put the tasks which was not mentioned in the previous rules to the default/ control group.


default libcgroup configuration file


cgconfig.conf (5), cgclassify (1), cgred.conf(5)