CICS troubleshooting

The IBM® Transformation Extender running under CICS® can be subject to a wide variety of overall performance throughput. The performance factors considered here extend through:

• Usage and interpretation of the designed maps being executed by the CICS Execution Option
  • Internal functions used within the maps themselves
• CICS application design and purpose as it relates to map usage and volume of data upon which is being operated
• External factors that traditionally influence CICS performance as a whole such as CICS:
  • Transaction mix
  • Journaling
  • Dispatching priority

Some key areas targeted for improvement are:

• Excessive CICS I/Os, Transaction CPU Time
• External Factors