cgrules.conf man page on Oracle

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CGRULES.CONF(5)		       libcgroup Manual		       CGRULES.CONF(5)

       cgrules.conf - libcgroup configuration file

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

       The file contains a 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:
	   - a 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)
	   - following strings called "templates" and will get expanded

		 %u	username, uid if name resolving fails
		 %U	uid
		 %g	group name, gid if name resolving fails
		 %G	gid
		 %p	process name, pid if name not available
		 %P	pid

		 '\' can be used to escape '%'
       First rule which matches the criteria will be executed.

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

       If the destination contains template string, the control group  can  be
       created	on-fly.	 In  time  when some process wants to use the template
       rule which leads to control group (see  cgexec  (1))  and  the  control
       group  does not exist, the group is created. The template control group
       parameters can be specified in cgconfig.conf  configuration  file.  See
       (cgconfig.conf  (5)).   If  the	template definition is not found there
       created group have default kernel setting.

       student	       devices	       /usergroup/students
       Student's processes in the 'devices' subsystem belong  to  the  control
       group /usergroup/students.

       student:cp	devices		/usergroup/students/cp
       When student executes 'cp' command, the processes in the 'devices' sub‐
       system belong to the control group /usergroup/students/cp.

       @admin		*	       admingroup/
       Processes started by anybody from admin group no matter in what subsys‐
       tem belong to the control group admingroup/.

       peter	       cpu	       test1/
       %	       memory	       test2/
       The  first  line	 says Peter's task for cpu controller belongs to test1
       control group. The second one says Peter's tasks for memory  controller
       belong to test2/ control group.

       *	       *	       default/
       All  processes  in  any subsystem belong to the control group default/.
       Since the earliest matched rule is applied, it makes sense to have this
       line at the end of the list. It will put a task which was not mentioned
       in the previous rules to default/ control group.

       @students cpu,cpuacct	students/%u
       Processes in cpu and cpuacct subsystems started by  anybody  from  stu‐
       dents group belong to group students/name. Where "name" is user name of
       owner of the process.

       default libcgroup configuration file

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

Linux				  2009-03-10		       CGRULES.CONF(5)

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