System Management Guide: Operating System and Devices

Command Line Interfaces

WLM offers command-line interfaces, which allow system administrators to:

• Create, modify, and delete superclasses and subclasses, using the mkclass, chclass, and rmclass commands. These commands update the file's classes, shares and limits.
• Start, stop, and update WLM, using the wlmcntrl command.
• Check the WLM property files for a given configuration and determine to which class (superclass and subclass) a process with a given set of attributes is assigned using the wlmcheck command.
• Monitor the per-class resource utilization using the wlmstat (ASCII) command. Most of the performance tools, such as those started by the svmon and topas commands, have extensions to take into account the WLM classes and provide per-class and per-tier statistics using new command-line options.
• Flags in the ps command allow the user to display which class a process and its application tag is in. The ps command also allows the user to list all the processes belonging to a given superclass or subclass.
• There is no command line interface to manage the assignment rules. You must use the SMIT or Web-based System Manager administration tools, or a text editor.