Deciding what kind of response time TSO/E users will have

Before you can adjust TSO/E, you must determine what good performance is. The basic criterion of TSO/E performance is response time. When deciding what kind of response time you want, consider:

The resources available at your installation, such as processor capacity
What priority TSO/E users must have in relationship to other work at your installation, such as batch. After you have decided what priority TSO/E users have, you can decide the proportion of the resources to which TSO/E users have access.
The expectations of the users and what they use the system for

Because TSO/E users work interactively with TSO/E, it is important that overall response time be fast enough so that users can work effectively. The optimum response time varies depending on how you use the system. In systems where users enter data rapidly and continuously, fast response time is more critical than in a system that carries out complex calculations.

Because users expect good response time from TSO/E commands, you should try to tune your system so that most TSO/E commands complete within one second. Categorize TSO/E commands according to the resources they require and provide better response time to commands that require fewer resources. To define your objectives, use SYS1.PARMLIB member IEAIPSxx. For more information about SYS1.PARMLIB member IEAIPSxx, see .