Recommendations

Consider these recommendations:

• Reduce the number of suspended events by lowering ERWAIT time.
• Tune the trackers.
• Eliminate as many trivial events as possible:
  • Use STEPEVENTS(ABEND) or STEPEVENTS(NZERO) rather than STEPEVENTS(ALL).
  • Specify PRINTEVENTS(NO) if you do not track print operations.
  • Filter the test workload using EQQUX004.
  • Filter type 5 events, except those with EXROPCAN, if printing is not of interest.
• Use NCF or XCF connections rather than starting event readers. When you use NCF or XCF for communications, be sure to use the EWSEQNO option in the EWTROPTS initialization statement. Starting a specific event reader task in the tracker is not required and dramatically increases I/O to the event data set and more importantly the path length for an event to reach the controller.
• Ensure EQQUX007 is performing well, if used. The current plan lock is held when the exit is taken.