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System dumps
Whenever a system dump table entry is deleted, CICS collects the
statistics covering the period since the last interval.
TCP/IP services
Whenever a TCP/IP service is closed, CICS collects the statistics
covering the installed period since the last interval.
Transaction classes
Whenever an installed transaction class definition is discarded, CICS
collects the statistics covering the installed period since the last interval.
Transaction dumps
Whenever a transaction dump table entry is deleted, CICS collects the
statistics covering the period since the last interval.
Transactions
Whenever an installed transaction definition is discarded, CICS collects
the statistics covering the installed period since the last interval.
Transient data queues
Whenever an installed transient data queue definition is discarded, or
an extrapartition transient data queue is closed, CICS collects the
statistics covering the installed period since the last interval.
For information about how to use the CEMT statistics commands, refer to the
CICS
Supplied Transactions
manual. For programming information about the EXEC CICS
statistics commands, see the
CICS System Programming Reference
manual.
Resetting statistics counters
Statistics counters are reset in the following circumstances:
v At CICS startup
v When interval statistics are written (but not when an interval occurs and no
statistics are written)
v At end of day
v When requested reset statistics are written.
However, you can cause statistics counters to be reset without writing records to
the SMF data set. You do this by changing the statistics recording status, using
either of the commands:
v CEMT SET STATISTICS ON|OFF RESETNOW
v EXEC CICS SET STATISTICS ON|OFF RESETNOW.
Note that it is valid to specify the RESETNOW option only when there is a genuine
change of recording status. For example, coding EXEC CICS SET STATISTICS ON
RESETNOW when STATISTICS is already set ON causes an error response.
statistics—introduction
Chapter 25. CICS statistics 681
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