Percentage of Time the CPU is busy

Hal Merritt

2008-09-04 15:02:04 UTC

Explain what?

Although starting from common roots, the values are gathered, reduced, and presented in different ways. Generally, SDSF is a point in time snapshot where the RMF reports show averages over time.

HTH

-----Original Message-----
From: IBM Mainframe Discussion List [mailto:IBM-***@BAMA.UA.EDU] On Behalf Of Kayhan Tanriverir
Sent: Thursday, September 04, 2008 9:27 AM
To: IBM-***@BAMA.UA.EDU
Subject: Percentage of Time the CPU is busy

When I looked at the CPU usage in the "Display Active" panel from SDSF for SYSP1 LPAR. it is CPU/L 91/84. The mean CPU/L/Z 91/ 84/ 0 is: Percentage of time the CPU is busy, MVS, LPAR and ZAAP views.

How can we explain that according to the below RMF values?

1                                              P A R T I T I O N D A T A R E P O R T
                                                                                                                            PAGE    2
             z/OS V1R9                SYSTEM ID SYSP1            START 09/04/2008-15.30.00 INTERVAL 000.29.59
                                      RPT VERSION V1R9 RMF       END   09/04/2008-16.00.00 CYCLE 1.000 SECONDS
-
MVS PARTITION NAME                    SYSP1       NUMBER OF PHYSICAL PROCESSORS           8                 GROUP NAME       N/A
IMAGE CAPACITY                         479                  CP                            7                 LIMIT            N/A
NUMBER OF CONFIGURED PARTITIONS         11                  AAP                           0
WAIT COMPLETION                         NO                  IFL                           0
DISPATCH INTERVAL                  DYNAMIC                  ICF                           1
                                                             IIP                           0
-
--------- PARTITION DATA ----------------- -- LOGICAL PARTITION PROCESSOR DATA --   -- AVERAGE PROCESSOR UTILIZATION PERCENTAGES --
0                   ----MSU---- -CAPPING-- PROCESSOR- ----DISPATCH TIME DATA----   LOGICAL PROCESSORS --- PHYSICAL PROCESSORS ---
NAME       S   WGT DEF    ACT DEF   WLM% NUM   TYPE   EFFECTIVE       TOTAL       EFFECTIVE    TOTAL LPAR MGMT EFFECTIVE TOTAL
0SYSP1      A    93    0    375 NO     0.0    7   CP    02.44.26.102 02.44.29.223       78.30    78.33      0.02      78.30 78.33
CFD1       A     2    0     47 NO     0.0    3   CP    00.20.47.883 00.20.48.257       23.11    23.12      0.00       9.90   9.91
CFT1       A     2    0     47 NO     0.0    3   CP    00.20.47.962 00.20.48.306       23.11    23.12      0.00       9.90   9.91
SYSD1      A     3    0      5 NO     0.0    2   CP    00.01.58.454 00.02.01.323        3.29     3.37      0.02       0.94   0.96
SYST1      A     5    0      3 NO     0.0    3   CP    00.01.26.727 00.01.29.639        1.61     1.66      0.02       0.69   0.71
*PHYSICAL*                                                            00.00.20.919                           0.17              0.17
                                                         ------------ ------------                         ------     ------ ------
   TOTAL                                                 03.29.27.129 03.29.57.669                           0.24      99.74 99.98

Regards
Kayhan Tanriverir

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