Dictionary records for CMF Performance Class data

A dictionary record holds definitional information about each data field in a performance class data record. It contains information for predefined CICS® fields, and from any user fields in the Monitoring Control Table (MCT) specified for the CICS run.

When CICS monitoring is switched on, and you activate the monitoring performance class (MNPER=ON), CICS first writes a performance class dictionary record to the current SMF data set, and then begins to write the monitoring performance class data records. A new dictionary record, which always precedes the monitoring performance class data it relates to, is written whenever the user:

However, if SMF switches data sets during the period when CICS monitoring is writing performance class data, CICS does not write a new dictionary record, and therefore a CICS performance dictionary record is not the first monitoring performance record on the new SMF data set.


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Timestamp icon Last updated: Friday, 8 February 2013


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