Correlating performance class data
Performance class data is detailed transaction-level information, such as the processor and elapsed time for a transaction, or the time spent waiting for I/O. At least one performance record is written for each transaction that is being monitored. Performance class data provides detailed, resource-level data that can be used for accounting, performance analysis, and capacity planning. This data contains information relating to individual task resource usage, and is completed for each task when the task terminates.
The performance class data provides several fields that can be
used to correlate all the related performance class data records from
a single or multiple CICS® systems
to monitor the total amount of resources used by a transaction. The
performance class records can be correlated by any of the following:
- Network unit-of-work ID
- Network unit-of-work ID and DB2® accounting correlation token
- Transaction group ID
- CICS BTS process ID (root activity ID)
The following sections describe the various ways in which the performance class records can be correlated.