Indicators for performance-related problems

These external indicators can identify performance-related problems:

• Long queue of computer operations in R status with no extended status and no reason stated on panel EQQSOPSP.
• Significant delay between when a job ends and the time IBM Tivoli Workload Scheduler for z/OS reports success or failure for the operation. This delay can be measured as the difference between the event-creation time in the event record and the time of the associated job-tracking-log record. The IBM Tivoli Workload Scheduler for z/OS audit program lists creation time and controller processing time for events. Additionally, both Performance Reporter for z/OS® and Tivoli® Decision support for OS/390® include tables to calculate the event processing delay.

See the recommendations in the next chapter to address more specific performance-related problems in job submission, event processing, and event communication.