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or
v The RECORDING option of the EXEC CICS SET STATISTICS command is
set to ON.
The TS data sharing server writes interval statistics if statistics recording was
set to SMF or BOTH by the STATSOPTIONS server initialization parameter, or
by the server command SET STATSOPTIONS.
When interval statistics are written, the statistics counters are reset. See
“Resetting statistics counters” on page 681.
You can change the interval duration for CICS using CEMT SET STATISTICS
and the EXEC CICS SET STATISTICS command. The default interval duration
is 3 hours for a cold start of CICS.
For the TS data sharing server, you can change the interval using the
STATSINTERVAL server initialization parameter, or the server command SET
STATSINTERVAL.
End-of-day statistics
are a special case of interval statistics. They are the statistics for the duration
between the last time the statistics counters were reset and:
v The end-of-day expiry time, or
v When CICS quiesces (normal shutdown), or
v When CICS terminates (immediate shutdown), or
v When the TS data sharing server terminates.
For details of the events at which statistics counters are reset, see “Resetting
statistics counters” on page 681.
The end-of-day value defines a logical point in the 24-hour operation of CICS.
You can change the end-of-day value for CICS using CEMT SET STATISTICS
or the EXEC CICS SET STATISTICS command. For the TS data sharing server,
you can change the end-of-day value using the ENDOFDAY server initialization
parameter, or the server command SET ENDOFDAY.
CICS writes end-of-day statistics to SMF even if, on one of the following, you
have specified OFF:
v The STATRCD system initialization parameter
v The CEMT SET STATISTICS command
v The RECORDING option of the EXEC CICS SET STATISTICS command.
The TS data sharing server writes end-of-day statistics to the server print file
even if the STATSOPTIONS parameter specifies NONE, but it does not write
the statistics to SMF.
The default end-of-day value is 12 midnight. When end-of-day statistics are
written, the statistics counters are reset.
Requested statistics
are statistics which the user has asked for using one of the following
commands:
v CEMT PERFORM STATISTICS RECORD
v EXEC CICS PERFORM STATISTICS RECORD
statistics—introduction
678
CICS TS for OS/390: CICS Customization Guide