Application Performance Analyzer for z/OS, Version 11.1, User's Guide

Detail line descriptions

Environmental Information

Fields under this heading describe characteristics of the CICS® environment.

CICS Release
The CICS version and release.

Transaction Statistics

Some CICS processing statistical values are shown under this heading.

First Transaction TaskId
The value of the CICS TaskId at the beginning of the observation session.
Last Transaction TaskId
The value of the CICS TaskId at the end of the observation session.
Number of TaskId Increments
The difference between the first and last CICS TaskId.
Number of Observed Transactions
The number of transactions with unique CICS TaskId values observed. If this value does not correspond to the number of increments, it could be an indication that not all executed transactions were measured. Some transactions could have been excluded as specified in the measurement request or transactions can be missed if a sampling rate is chosen that is slower than the transaction throughput rate.
Transaction Rate
The average number of transactions per second during the measurement interval.
Peak Active Transactions
The maximum number of concurrently active transactions observed during the measurement interval.
Peak Active Txns (Overall)
The maximum number of concurrently active transactions that occurred during the entire execution of the CICS region.
MaxTask
The maximum number of concurrent transactions CICS is configured for.

Mean Transaction Time

The average service time for the transactions observed during the measurement interval.

The service time consists of:

Execution Time
The time a CPU is processing the transaction.
Suspend Time
The time the transaction is suspended by CICS.
CICS Dispatch Delay Time
The time the transaction is delayed by CICS.
MVS™ Dispatch Delay Time
The time execution is delayed by the MVS dispatcher.
Service Time
The sum of the execution time, the suspend time, and the delay time.

Service Statistics

These are counts of service requests issued by CICS programs during the measurement interval:

Exception or Critical Conditions

These are counts of certain exception or critical conditions that occurred during the measurement interval:

Transaction Counts

A list of each transaction code that was measured and the number of executions is shown here.




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