The rctladm command allows the examination and modification of active resource controls on the running system. An instance of a resource control is referred to as an rctl. See setrctl(2) for further description of an rctl. Logging of rctl violations can be activated or deactivated system-wide and active rctls (and their state) can be listed.
The rctladm command supports the following options:
List available rctls with event status. This option displays the global event actions available for each rctl, and by the action name used with the enable (-e) and disable (-d) options below. The global flag values for the control are also displayed. If one or more name operands are specified, only those rctls matching the given names will be displayed.
This is the default action if no options are specified.
Enable or disable, respectively, the global action on the specified rctl(s). If no rctl is specified, no action is taken and an error status is returned. You can use the special token all with the disable option to deactivate all global actions on a resource control.
You can set the syslog action to a specific degree by assigning a severity level. To do this, specify syslog=level, where level is one of the string tokens given as valid severity levels in syslog(3C). You can omit the common LOG_ prefix on the severity level.
Configure resource controls based on the contents of /etc/rctladm.conf. Any name operands are ignored.
The following operands are supported:
The name of the rctl to operate on. You can specify multiple rctl names may be specified. If no names are specified, and the list action has been specified, then all rctls are listed. If the enable or disable action is specified, one or more rctl names must be specified.
The following command activates system logging of all violations of task.max-lwps.
# rctladm -e syslog task.max-lwps #
The following command examines the current status of the task.max-lwps resource.
$ rctladm -l task.max-lwps task.max-lwps syslog=DEBUG $
The following exit values are returned:
Fatal error occurred.
Invalid command line options were specified
Each time rctladm is executed, it updates the contents of rctladm.conf with the current configuration.
See attributes(5) for descriptions of the following attributes:
|ATTRIBUTE TYPE||ATTRIBUTE VALUE|
By default, the base operating system provides a variety of controls:
project.cpu-shares task.max-lwps task.max-cpu-time process.max-cpu-time process.max-file-size process.max-data-size process.max-stack-size process.max-core-size process.max-file-descriptor process.max-address-space
The default properties of the process resource controls are described on setrlimit(2). Task and project resource controls are unenforced by default.