Setting fields and summing quantities

The summarization process is straightforward. Generally, the process is concerned only with setting characteristic fields and summing quantities. The following fields are set automatically and summarized:

Identification fields

For a summarized IRUF, fields such as CLASS and MESSAGE REGION are set by the first value encountered in the summarization process.

Timestamps

In a detail IRUF, timestamps represent action times such as arrival time. In a summarized IRUF, timestamps represent time period bounds within which summarization is performed. However, the response option timestamps are those from the first detail record summarized, because bounds would be meaningless.

Resource usage

  • Absolute measures

    In a detailed IRUF, fields such as MEMORY AVAILABLE represent the actual use. In a summarized IRUF, these fields represent high-water marks.

  • Cumulative measures

    In a detailed IRUF, fields such as CPU TIMES represent the CPU time used for an individual transaction. In a summarized IRUF, accumulations of all CPU time or counts used for the transactions within the summarization period are used.

Note

The response option fields for input queue time and response time will be accumulated if all transaction records that were summarized together were created with this option in effect; otherwise, the fields are set to zero.

Related topic

IRUF summarization

 

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