Performance goals and business importance for transactions

A performance goal can be the average response time desired for a transaction, or it can be that a certain percentage of the transactions complete within the response time period.

The business importance is a priority level representing how critical a type of transaction is to your installation. 1 is the highest priority level.

After a transaction is scheduled by IMS, the z/OS® WLM uses the performance goals that you define for each transaction to decide how much resources, such as processor cycles and storage, it should allocate to meet your goals. When contention for system resources occurs, the z/OS WLM uses the business importance assigned to the transaction to help decide which transactions get priority for the resources that are under the control of the z/OS WLM. The performance goals and business importance are defined in a service definition.

Related reading: For more information about service definitions, see Establishing the service definition.