Using the information in the Partition Data Report

When RMF is running in a Processor Resource/Systems Manager (PR/SM) environment in LPAR mode, the Partition Data Report section of the CPU Activity report provides data about all configured partitions active at the end of the reporting interval, independent of the operating system running in each partition.

When RMF is running on a z/OS guest in a z/VM guest environment, and the Monitor I data gatherer option VMGUEST has been set when the SMF record was collected, then the report section provides data about the z/OS guest system. If you want information about another z/OS guest system, you can run RMF separately on that guest system.

The report contains the following information:
  • Header information
  • Partition data
  • Logical partition processor data
  • Average processor utilization percentages

The header information gives an overview of the LPAR mode characteristics:

  • MVS partition name
  • Image capacity — information related to software pricing
  • Number of configured partitions
  • Number of physical processors in total and per type
  • Wait completion indicator
  • Dispatch interval
  • If a group of LPARs on the same CEC is managed towards a combined capacity limit, the name of the group and the common capacity limit is displayed
  • Capping information

The section PARTITION DATA is grouped by general purpose and special purpose processor types and provides the following information:

  • Name
  • Status
  • Start of changeBoost typeEnd of change
  • Weighting share of resources
  • Defined and consumed service units
  • Capping information
The section LOGICAL PARTITION PROCESSOR DATA provides the following information about the partition's processors:
  • Number and type of processors assigned to this partition
  • The partition's effective dispatch time
  • The partition's total dispatch time
The section AVERAGE PROCESSOR UTILIZATION PERCENTAGES provides the following information about the partition's processors:
  • Logical constraint percentages. If multithreading is enabled, the percentages shown for logical processor resources can be applied to logical core resources.
    • The partition's average effective utilization of the logical processor resource
    • The partition's average total utilization of the logical processor resource
  • Physical constraint percentages. If multithreading is enabled, the percentages shown for physical processor resources can be applied to physical core resources.
    • The average LPAR Management utilization of the physical processor resource on behalf of the partition
    • The partition's average effective utilization of the physical processor resource
    • The partition's average total utilization of the physical processor resource
Figure 1. CPU Activity Report - Partition Data Report
                                              P A R T I T I O N  D A T A  R E P O R T                                               
                                                                                                                           PAGE    3
            z/OS V2R4                SYSTEM ID SYSF             DATE 07/03/2019            INTERVAL 14.59.999                       
                                     RPT VERSION V2R4 RMF       TIME 12.14.33              CYCLE 1.000 SECONDS                      
                                                                                                                                    
MVS PARTITION NAME                    SYSF        PHYS PROC NUM   105          GROUP NAME  SYSDPLEX          INITIAL CAP   NO       
IMAGE CAPACITY                         482                  CP     76          LIMIT          15000*         LPAR HW CAP   NO       
NUMBER OF CONFIGURED PARTITIONS         41                  AAP     3          AVAILABLE       9087          HW GROUP CAP  NO       
WAIT COMPLETION                         NO                  IFL    20                                        ABS MSU CAP   NO       
DISPATCH INTERVAL                  DYNAMIC                  ICF     2                                                               
                                                            IIP     4                                                               
                                                                                                                                    
------------ PARTITION DATA ------------------ -- LOGICAL PARTITION PROCESSOR DATA -- -- AVERAGE PROCESSOR UTILIZATION PERCENTAGES -
                     ----MSU----  --CAPPING--- --PROCESSOR ----DISPATCH TIME DATA---- LOGICAL PROCESSORS --- PHYSICAL PROCESSORS ---
NAME       S BT WGT   DEF    ACT  DEF     WLM%   NUM  TYPE  EFFECTIVE       TOTAL     EFFECTIVE    TOTAL LPAR MGMT  EFFECTIVE  TOTAL
SYSF       A  N 200   500      5  N N N    0.0     3  CP   00.00.40.643  00.00.42.153      1.51     1.56      0.00       0.06   0.06
COHCF0E    A  N 200     0      7  N N N    0.0     1  CP   00.00.54.300  00.00.54.526      6.03     6.06      0.00       0.08   0.08
COH2       A  N 350     0      8  N N N    0.0     4  CP   00.00.57.182  00.00.59.315      1.59     1.65      0.00       0.08   0.09
COH3       A  N  70     0      5  N N N    0.0     4  CP   00.00.39.000  00.00.40.554      1.08     1.13      0.00       0.06   0.06
IRD1       A  N  50     0      4  N N N    0.0   6.0  CP   00.00.30.358  00.00.32.020      0.56     0.59      0.00       0.04   0.05
IRD1CFB    A  N 200     0      2  Y N N    0.0     1  CP   00.00.11.737  00.00.11.900      1.30     1.32      0.00       0.02   0.02
IRD2       A  N  50     0      3  N N N    0.0   8.0  CP   00.00.21.835  00.00.23.289      0.30     0.32      0.00       0.03   0.03
IRD3       A  N  50     0      4  N N N    0.0   8.0  CP   00.00.27.889  00.00.29.510      0.39     0.41      0.00       0.04   0.04
SYSD       A  N  50     0    329  N N N    0.0     3  CP   00.40.54.118  00.40.55.177     90.89    90.93      0.00       3.59   3.59
....................................................................................................................................
VMSSL      A  N  20     0    565  N N N    0.0     6  CP   01.10.19.994  01.10.30.346     78.15    78.34      0.02       6.17   6.18
ZVM        A  N 150     0      0  N N N    0.0     8  CP   00.00.00.000  00.00.00.000      0.00     0.00      0.00       0.00   0.00
*PHYSICAL*                                                               00.02.45.819                         0.24              0.24
             ------                                        ------------  ------------                        -----      -----  -----
  TOTAL        3480                                        02.50.17.617  02.54.24.386                         0.36      14.94  15.30
                                                                                                                                    
CCIDAA     A     20               N N N            8  IFL  00.01.44.823  00.01.48.041      1.46     1.50      0.02       0.58   0.60
SSL3       A     20               N N N            2  IFL  00.00.01.754  00.00.01.846      0.10     0.10      0.00       0.01   0.01
ZKVMH05    A     10               N N N            8  IFL  00.02.06.300  00.02.07.617      1.75     1.77      0.01       0.70   0.71
ZKVMH06    A     10               N N N            8  IFL  00.01.56.115  00.01.56.877      1.61     1.62      0.00       0.65   0.65
*PHYSICAL*                                                               00.00.09.938                         0.06              0.06
             ------                                        ------------  ------------                        -----      -----  -----
  TOTAL          60                                        00.05.48.993  00.06.04.322                         0.09       1.94   2.02
                                                                                                                                    
SYSF       A  I 200               N N N            3  IIP  00.00.11.863  00.00.12.126      0.44     0.45      0.01       0.33   0.34
IRD1       A  N  50               N N N            2  IIP  00.00.01.703  00.00.01.722      0.09     0.10      0.00       0.05   0.05
IRD2       A  N 999               N N N            2  IIP  00.00.01.985  00.00.02.006      0.11     0.11      0.00       0.06   0.06
IRD3       A  N  50               N N N            2  IIP  00.00.01.767  00.00.01.790      0.10     0.10      0.00       0.05   0.05
SYSE       A  N  50               N N N            1  IIP  00.00.08.270  00.00.08.353      0.92     0.93      0.00       0.23   0.23
COB1       A  N 100               N N N            1  IIP  00.00.01.684  00.00.01.688      0.19     0.19      0.00       0.05   0.05
COB3       A  N 100               N N N            1  IIP  00.00.05.526  00.00.05.598      0.61     0.62      0.00       0.15   0.16
COB4       A  N 100               N N N            1  IIP  00.00.08.498  00.00.08.565      0.94     0.95      0.00       0.24   0.24
*PHYSICAL*                                                               00.00.00.867                         0.02              0.02
             ------                                        ------------  ------------                        -----      -----  -----
  TOTAL        1649                                        00.00.41.299  00.00.42.719                         0.04       1.15   1.19
                                                                                                                                    
HCDVM      D  
Note: An asterisk (*) next to any value indicates a change to this value during the measurement interval.
Table 1. Fields in the Partition Data Report
Field Heading Meaning
Header Information
MVS PARTITION NAME The partition running the z/OS system which requested this report. VMSystem is displayed if the report was requested by a z/OS system running in a z/VM guest environment.
IMAGE CAPACITY CPU capacity available to the MVS image measured in MSUs (millions of service units) per hour. The field is calculated as minimum of the following capacities:
  • the capacity based on the partition's logical CP configuration (includes online and standby [can be configured online] CPs)
  • the defined capacity limit of the partition, if available (image softcap)
  • the capacity limit of the related WLM capacity group, if the partition belongs to a capacity group
  • the absolute physical hardware capping limit
  • the capacity based on the hardware group capping limit.

For z/OS systems running as z/VM guests, the field displays the CPU capacity available to the z/VM partition.

NUMBER OF CONFIGURED PARTITIONS The total number of activated and deactivated configured partitions. This number does not include the partition reported by the name *PHYSICAL*.
PHYS PROC NUM
or
VM PROC NUM
Number of physical processors in total and per processor type. Starting with IBM System z9 processors, IFLs and zAAPs are reported separately, and no longer as ICFs.

If the data is reported for a z/OS system running as a z/VM guest, the field presents the number of processors that are assigned to the z/VM partition.

WAIT COMPLETION The wait completion option of the partition: YES, NO, or MIX
YES
Implies that the processors assigned to each partition will remain dispatched to the partition until the time slice period has ended.
NO
Implies that the processors assigned to each partition become available to other partitions when the work for this partition is completed. The time slice period might or might not have ended. This field has no meaning for a dedicated partition.
MIX
Indicates that a mix of YES and NO is used for processors in the partition where RMF is running.
DISPATCH INTERVAL Time (in milliseconds) a processor can be used when dispatched. This value is specified on the Logical Partition Control (LPCTO) frame on the Processor Controller Element (PCE).

DYNAMIC appears in this field if a value is not specified and implies that the length of time a processor is assigned to a partition is dynamically allocated. See PR/SM Planning Guide for more information.

GROUP NAME Name of the capacity group to which the partition belongs, if it is managed towards a common group capacity limit.
LIMIT Capacity limit (in MSUs) defined for the partition's capacity group.

An '*' following the limit value indicates that this partition started to be a member of this capacity group less than four hours ago. This partition will have a different view of unused group capacity and, therefore, may cap differently than existing group members.

AVAILABLE Long-term average of CPU service in MSUs/h which would be allowed by the limit of the capacity group but is not used by its members. If the value is negative, the group is capped.
INITIAL CAP Indicates whether the operator has set ’Initial Capping ON’ in the logical partition controls of the Hardware Management Console (HMC) for the partition.
LPAR HW CAP Indicates whether an absolute physical hardware capping limit has been defined in the logical partition controls of the HMC for any processor type of the partition.
HW GROUP CAP Indicates whether an absolute hardware group capping limit has been defined in the logical partition group controls of the HMC for any processor type of the partition.
ABS MSU CAP Indicates whether the ABSMSUCAPPING parameter has been set in the active IEAOPTxx parmlib member for the partition.
Partition Data
NAME The name that identifies a partition D
Note:
  1. The partition identified by the name *PHYSICAL* is not a configured partition.

    Data reported for *PHYSICAL* is shown only in columns DISPATCH TIME DATA - TOTAL, PHYSICAL PROCESSORS - LPAR MGMT, and PHYSICAL PROCESSORS - TOTAL.

  2. When data about a z/OS system in a z/VM guest environment is reported, the *VMSystem* line reports the time used by z/VM itself.
S The current status of the partition:
A
Activated
D
Deactivated. The LPAR is configured but there are currently no logical CPUs online for this partition.

If a partition is deactivated, the rest of the report line is blank.

Start of changeBTEnd of change Start of changeThe boost type that was active at some point within the interval.
  • For processor type CP:
    S
    Speed boost was active.
    N
    Speed boost was inactive.
  • For processor type IIP:
    I
    zIIP boost was active.
    N
    zIIP boost was inactive.
End of change
WGT Either the partition's current weighting of the shared processor resources or one of the following indicators:
DED
Indicates that the partition is dedicated.
DMX
Indicates that a mix of dedicated and non-dedicated processors is used in this partition.
WMX
Indicates that different share values are assigned to processors used in this partition.
MSU Shows capacity information for a partition in terms of MSUs per hour. This information is shown for general purpose processors only.
DEF
Defined capacity limit of the partition.

For the partition which is gathering the RMF data, this value is equal to the image capacity which is shown in the header of the report.

ACT
Actual consumption Start of changebased on the logical processor effective dispatch timeEnd of change.
CAPPING Shows capping information for a partition.
DEF
The hardware capping option of the partition. Each DEF value is a three position character string denoting which hardware capping mechanisms have or have not been applied in the logical partition controls of the HMC for the partition. The values in the first, second and third position of the string are either Y (Yes) or N (No) and have the following meaning:
  • The first character (Y or N) indicates whether Initial Capping ON has been set.
  • The second character (Y or N) indicates whether an absolute physical hardware capping limit (maximal number of CPUs) has been defined.
  • The third character (Y or N) indicates whether an absolute hardware group capping limit (maximal number of CPUs) has been defined.

For example, a DEF value of Y N N indicates that Initial Capping ON has been applied to this partition, but the other two options have not.

The information provided in this field is useful only for logical partitions with shared processors.

WLM%
Percentage of time when WLM capped the partition. This information is shown only for general purpose processors.
Logical Partition Processor Data
PROCESSOR

NUM TYPE

The number of physical processors assigned to this partition and its processor type.
EFFECTIVE DISPATCH TIME The sum of all processors' effective dispatch times for this partition during the measurement interval; expressed in the form HH.MM.SS.TTT. Partition effective dispatch time is the time, excluding LPAR management time, that a processor was assigned to this partition during the measurement interval.
TOTAL DISPATCH TIME The sum of all processors' dispatch times for this partition during the measurement interval, including LPAR management time.

It is possible that the total dispatch time is smaller than the effective dispatch time. This situation occurs when partitions get "overruns" in their dispatch intervals caused by machine delays. The most typical form of this is caused by an MVS partition trying to talk to a coupling facility but getting significant delays or time-outs. It is sometimes symptomatic of recovery problems on the machine.

For *PHYSICAL*, this value includes the time during which a physical CPU was busy, but the time could not be attributed to a specific logical partition. This time includes the time PR/SM was controlling the physical processor (LPAR management time), as well as any other time the processor was busy for any reason such as managing coupling facility traffic.

Average Processor Utilization Percentages

The average utilization of logical processors is based on the total online time of all logical processors assigned to the partition. The average utilization of physical processors is based on the total interval time of all physical processors.

Note: If the z/OS system is running as guest under z/VM, and the Monitor I data gatherer option VMGUEST is active, the physical processor utilization represents the logical processor utilization of the z/VM LPAR.
LOGICAL PROCESSORS - EFFECTIVE The average partition effective dispatch time percentage.
Effective Dispatch Time
------------------------- * 100
SUM Online Times
LOGICAL PROCESSORS - TOTAL The average partition total dispatch time percentage.
Total Dispatch Time
-------------------- * 100
SUM Online Times
PHYSICAL PROCESSORS - LPAR MGMT The average LPAR management time on behalf of the partition reported as a percentage of the measurement interval.
Total Dispatch Time - Effective Dispatch Time
--------------------------------------------- * 100
  # Physical Processors * Interval Time

If the total dispatch time is smaller than the effective dispatch time, **** is shown in this column.

The calculation for the *PHYSICAL* partition is:
       Total Time *PHYSICAL*
------------------------------------- * 100
# Physical Processors * Interval Time

Time *PHYSICAL* is the time that could not be attributed to a specific logical partition, but was used by PR/SM to control the physical processor (LPAR management time).

Note: # Physical Processors denotes the number of physical processors of a certain processor group, either general purpose processors or special purpose processors.
PHYSICAL PROCESSORS - EFFECTIVE The effective utilization of the physical processor resource by the partition.
       Effective Dispatch Time
------------------------------------- * 100
# Physical Processors * Interval Time
PHYSICAL PROCESSORS - TOTAL The total utilization of the physical processor resource by the partition.
        Total Dispatch Time
------------------------------------- * 100
# Physical Processors * Interval Time
TOTAL

The sum of the current weightings of the shared processor resources.

The total amount of time the physical processor resource was assigned to a configured partition and to partition *PHYSICAL*.

The sum of the AVERAGE PHYSICAL PROCESSOR UTILIZATION - LPAR MGMT field represents the total utilization of PR/SM physical processor resource by PR/SM.

The sum of the AVERAGE PHYSICAL PROCESSOR UTILIZATION - EFFECTIVE field represents the total utilization of PR/SM physical processor resource by the operating systems running in each active partition.

The sum of the AVERAGE PHYSICAL PROCESSOR UTILIZATION - TOTAL field represents the total utilization of the PR/SM physical processor resource by all configured partitions and by partition *PHYSICAL*.