Displaying Deltas and Totals
Seven CMFMON screens contain pairs of fields that present the same data from different points of view: one field in Total mode and the other in Delta mode.
Total and Delta modes behave slightly differently, depending on the screen at which you are looking. The following table explains these differences.
Screens | In Total mode | In Delta mode | Delta data is updated |
|---|---|---|---|
| All fields display the cumulative value each time the Enter key is pressed. | Certain Total fields are replaced by Delta fields, which begin with a D. Delta fields display the difference in values each time the Enter key is pressed. | each time you press Enter |
| All fields display the average value over the current CMF or RMF Extractor interval (typically 15 minutes). | All fields are considered Delta fields, and each displays the difference in values over one or more sampling cycles that occur each time the Enter key is pressed. The Delta heading names are the same as in Total mode. | at the conclusion of the current CMF or RMF Extractor sampling cycle (typically 1 to 5 seconds) |
XDSP | All fields display the cumulative value from the time the Cross-System Data Server was started. | Delta mode is available only for the Cross-System Callable Services Performance Statistics portion of the XDSP screen. Delta fields display the difference in values each time the Enter key is pressed. | each time you press Enter |
To enter Delta mode, on the COMMAND line, type DElta. To enter Total mode, type DElta OFF.
The default for all screens is Total mode. If you are in Delta mode when you exit a screen, Total mode is restored immediately.
Example
This example uses the ARD screen to illustrate the DElta command.
Display the ARD screen.In particular, notice how the numbers in the CPU TIME field get larger as the total changes over time.
The screen now looks similar to ARD screen.
- Press Enter a couple of times and notice how the data changes on the ARD screen.
On the COMMAND line, type DElta.
CMFMON-ARD --------- Address Space Resource Data ------------ DELTA MODE IS ON
COMMAND ===> SCROLL ===> CSR
SYSTEM ===> SJSE
CPU 19/ 19 UIC 2540 Paging 0 ES Mig Age N/A Time 14:37:04 Mode DELTA
JOBNAME DDEV FF PRIV LSQA LSQA X DSRM DTCB DCPU DELT SWAP LPA CSA NVI V&H
CONN BEL FF CSF ESF M ABS TIME TIME EXCP RATE RT RT RT RT
________ _____ ___ ____ ____ ____ _ ____ _____ _____ ____ ____ ___ ___ ___ ___
>------------------------------------------------------------------------------
*MASTER* 0.027 0 4521 245 0 19.7 0.002 0.007 0 0.00 0.0 0.0 0.0 0.0
PCAUTH 0.000 0 0 761 0 X 0.00 0.000 0.000 0 0.00 0.0 0.0 0.0 0.0
RASP 0.000 0 583 54 0 X 0.44 0.000 0.000 0 0.00 0.0 0.0 0.0 0.0
TRACE 0.000 0 1 470 0 X 0.00 0.000 0.000 0 0.00 0.0 0.0 0.0 0.0
DUMPSRV 0.000 0 0 130 0 0.00 0.000 0.000 0 0.00 0.0 0.0 0.0 0.0
XCFAS 0.038 0 1903 6753 0 X 295 0.026 0.084 20 0.00 0.0 0.0 0.0 0.0
GRS 0.000 17 156 101 0 X 43.7 0.003 0.015 0 0.00 0.0 0.0 0.0 0.0
SMSPDSE 0.000 0 101 601 0 X 1.55 0.000 0.001 0 0.00 0.0 0.0 0.0 0.0
SMSVSAM 0.000 0 291 4844 0 X 37.6 0.008 0.012 0 0.00 0.0 0.0 0.0 0.0
CONSOLE 0.000 0 111 135 0 X 4.66 0.001 0.002 0 0.00 0.0 0.0 0.0 0.0
WLM 0.000 0 60 288 0 X 766 0.248 0.251 0 0.00 0.0 0.0 0.0 0.0
ANTMAIN 0.000 0 2 190 0 X 0.88 0.000 0.000 0 0.00 0.0 0.0 0.0 0.0
ANTAS000 0.000 0 2 123 0 X 0.00 0.000 0.000 0 0.00 0.0 0.0 0.0 0.0
DEVMAN 0.000 0 2 54 0 0.00 0.000 0.000 0 0.00 0.0 0.0 0.0 0.0
OMVS 0.000 0 347 357 0 X 189 0.030 0.037 0 0.00 0.0 0.0 0.0 0.0Notice that CPU Time becomes DCPU Time to indicate that you are in Delta mode, and notice that the Mode field on the status line now reads DELTA.
Press Enter a few times while watching the data in DCPU Time.
The values are much smaller now because you are looking at the difference between collection intervals rather than the total value.
- On the COMMAND line, type DElta OFF to return to Total mode.
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