DB2 10.5 for Linux, UNIX, and Windows
DB2 10.5 for Linux, UNIX, and Windows
Associating each DB2® service class with an agent priority, which controls the relative operating system priority of agents in the service class, is discontinued.
Starting with Version 10.1, you can use the workload manager (WLM) dispatcher to control CPU consumption more effectively and allow higher priority work to consume more CPU resources than lower priority work. The WLM dispatcher provides additional features over agent priority.
In Version 9.5, the agent priority was introduced to assign less system CPU resources to lower priority work and more system CPU resources to higher priority work based on the agent priority of the service class the work ran in. However, this method proved to be only effective for certain types of workloads.
For AIX® and Linux operating systems, you can also use the integration between DB2 service classes and AIX WLM or Linux WLM classes to control the amount of system resources allocated to each service class.
Use the WLM dispatcher in place of the agent priority to control CPU consumption.