IBM CICS Transaction Server for OS/390 SC33-1686-02 - Manual (Page 129)

CEMT INQUIRE STATISTICS
CEMT INQUIRE STATISTICS
Function: Retrieve statistics information.
Description: INQUIRE STATISTICS tells you the interval
during which statistics are accumulated, the end-of-day time
for shutdown (or logical end-of-day) statistics, the time at
which statistics are next recorded (that is, written to an SMF
data set), and whether statistics recording is currently on or
off.
For details of how to print statistics using the CICS-supplied
utility program DFHSTUP, see the
CICS Operations and
Utilities Guide.
Input: Press the Clear key and type CEMT INQUIRE
STATISTICS (the minimum abbreviation is CEMT I ST ).
You will get a display screen, a sample of which is shown
below. If you want to change any of the values shown, you
can then tab to the highlighted or blank fields and overtype
them as required.
Sample screen
IN STATI
STATUS: RESULTS - OVERTYPE TO MODIFY
Sta On Int( 3 ) End( ) Nex(15 )
Figure 104. CEMT INQUIRE STATISTICS screen
Note: There are blank fields on the screen where a value
does not apply or is ‘negative’; that is, the value
begins with ‘No’. To modify these fields, locate them
by tabbing (they appear in the same sequence as in
the expanded format), and overtype with input valid
for that field. You may find it more convenient to use
the expanded format when setting one of these
values, (negating is easier because you are
overtyping a displayed field with its negative causing
the result to become non-displayed).
If you place the cursor against the result and press ENTER,
CICS displays an expanded format as shown in Figure 105.
IN STAT
RESULT - OVERTYPE TO MODIFY
Statistics
Recording( Off )
Record( )
Reset( )
Interval( 3 )
Endofday( )
Nexttime( )
Figure 105. The expanded display
─ ─ ─CEMT Inquire STAtistics ─
Displayed fields
Endofday( hhmmss)
displays the end-of-day time for recording statistics. At
end-of-day, the current values of the CICS statistics
counters are written out to an SMF data set and the
statistics counters are reset.
End-of-day times must be in the range 000000-235959.
The default end-of-day time is 12 midnight (000000).
Interval( hhmmss)
displays the length of time during which the statistics
counters are incremented. At the end of each interval,
the accumulated statistics are recorded and the statistics
counters are reset.
Note: You can reset this value by overtyping it with a
different value.
Interval times must be in the range 000100-240000. The
default interval value is 030000. The interval value can
be adjusted, but will have no effect unless the statistics
recording status is set ON. You can set the statistics
recording status ON or OFF using the RECORDING
option on this command or by using the STATRCD
system initialization parameter.
The arrival of the ENDOFDAY time always causes the
current interval to be ended (possibly prematurely) and a
new interval to be started. Only end-of-day statistics are
recorded at the end-of-day time, even if it coincides
exactly with the expiry of an interval.
Changing the ENDOFDAY value has an immediate
effect on the times at which INTERVAL statistics are
recorded. New interval expiry times are recalibrated in
accordance with the new end-of-day time.
When you change the INTERVAL value or the
ENDOFDAY value (and also when CICS is initialized),
the length of the current (or first) interval is adjusted so
that it expires after an integral number of intervals from
the end-of-day time.
These rules are illustrated by the following example,
where I indicates an interval recording, INTERVAL is set
at 3-hourly intervals, CICS is initialized at 0815 hours,
and E indicates the ENDOFDAY setting at 1700 hours.
┌]─ CICS initialized with
│ ENDOFDAY(17 )
│ INTERVAL( 3 )
│
│
│
│
│
│
]┬]]]]┬]]]]┬]]]]┬]]]]┬]]]]┬]]]]┬]]]]┬]]]]┬]]]]┬
8 9 1 11 12 13 14 15 16 17
I I E
Chapter 11. Master terminal CEMT 111