Resource management with Workload Manager

WLM monitors and regulates the resource utilization, on a per-class basis, of the threads and processes active on the system. You can set minimum or maximum limits per class for each resource type managed by WLM, as well as a target value per class for each resource.

This target is representative of the amount of the resource that is optimal for the jobs in the class. The shares and limits at the superclass level refer to the total amount of each resource available on the system. At the subclass level, shares and limits refer to the amount of each resource made available to the superclass that the subclass is in (superclass target). The hierarchy of classes is a way to divide the system resources between groups of users (superclasses) and delegate the administration of this share of the resources to superclass administrators. Each superclass administrator can then redistribute this amount of resources between the users in the group by creating subclasses and defining resource entitlements for these subclasses.