This table provides information about CPU usage for the system. In an LPAR environment, this group also provides partition management statistics.
4 Hour MSUs The four-hour rolling average value of the millions of service units (MSUs) per hour. The value is updated every five minutes. It is the average of the previous 48 5-minute samples, which in turn are the average of 30 samples, taken every 10 secs. To avoid capping during system bringup (IPL), the calculation of the 4-hour rolling average assumes that the system has run for four hours without load, so for the first four hours after IPL the rolling average is not valid. A valid value is an integer. A value of -1 indicates "Unavailable"; the defined capacity limit is not in use for this LPAR.
Average CPU Percent If RMF is active, this is the current/latest sample of the system CPU, as seen by the LPAR; otherwise, it is the CPU utilization as computed by SRM. A valid value is an integer. The range for this value is from 0 to 100.
Average Unused Group MSUs The number of millions of service units (MSUs) that were available to the LPAR Group over the Rolling Average 4-hour period, but were not used. When the value is zero or negative, the LPAR is subject to LPAR Group Capping. When this capping is in effect, the Group LPAR MSU Limit can vary between the LPAR Group Entitled Minimum service and the Group Capacity Limit. A valid value is an integer. A value of 2147483647 indicates "Unavailable".
Average zCBP/zAAP on CP Percent The average percentage of time the system consumed regular processor resource executing work eligible for a System z Container Based Processor (zCBP) or zSeries Application Assist Processor (zAAP) across all regular processors configured to this logical partition (LPAR). A valid value is an integer. The range for this value is from 0 to 500.
Average zCBP/zAAP Percent The average percentage of time the system consumed System z Container Based Processor (zCBP) or zSeries Application Assist Processor (zAAP) resources across all zCBP and zAAP processors configured to this logical partition (LPAR). A valid value is an integer. The range for this value is from 0 to 500.
Average zIIP on CP Percent The average percentage of regular processor time the system consumed performing work eligible for a System z Integrated Information Processor (zIIP) for all regular processors configured to this LPAR. A valid value is an integer. The range for this value is from 0 to 500.
Average zIIP Percent The average percentage of System z Integrated Information Processor (zIIP) time the system consumed for all zIIPs configured to this LPAR. A valid value is an integer. The range for this value is from 0 to 500.
CPU Flag Indicates how the Average CPU Percent value is calculated. A valid value is an integer. Values appear on the workspace as follows:
CPUs Offline A list of CPU sequence numbers, separated by commas, that identifies those processors that are offline to this LPAR. A valid value is a string of up to 770 characters.
CPUs Online A list of processor sequence numbers, separated by commas, that identifies those processors that are online to this LPAR. A valid value is a string of up to 770 characters.
Group LPAR MSU Limit The millions of service unit (MSU) limit enforced by the LPAR group. This limit varies between the LPAR's entitled capacity and the LPAR group capacity. When a defined capacity is specified for the LPAR, this value never exceeds that limit. When no defined capacity is specified for the LPAR, the limit can be as high as the LPAR group limit. When the LPAR is not in an LPAR Group, this value is displayed as Unavailable. A valid value is an integer. A value of -1 indicates "Unavailable".
HiperDispatch Management The status of the HiperDispatch feature. A valid value is an integer. Values appear on the workspace as follows:
LPAR Group Capacity Limit The LPAR Group Capacity Limit in Millions of Service Units per Hour (MSUs/Hr). Capping of an LPAR Group is based on the 4-hour Rolling Average MSUs consumed by all the member LPARs of the LPAR Group. A valid value is an integer. A value of -1 indicates "Unavailable".
LPAR Group Name The name of the LPAR group. A valid value is a string of up to 8 characters. A value of -2 indicates "Unavailable".
Managed System The z/OS operating system in your enterprise that an OMEGAMON for z/OS agent is monitoring. A valid value is a string of up to 32 characters.
MVS Overhead The CPU utilization percentage that is not attributable to any user or address space. This is calculated as the difference between the total software utilization times and the total hardware time ((TCB + SRB)-CPU) over the last reporting interval. In a complex with more than one CPU, z/OS overhead can be computed based on the number of processors, or normalized to a maximum of 100%. A valid value is an integer. The range for this value is from 0 to 100.
Partition LCPD% In an LPAR environment, the percentage of time on average that a logical processor was dispatched in the logical partition during the interval. This value is based on dispatch time, not CPU busy time. A valid value is an integer. The range for this value is from 0 to 100.
The value is calculated by dividing dispatch time by elapsed time and then dividing that product by the number of logical processors. Thus, if an LPAR has been defined as having two logical processors and the sum of their dispatch times was 90 seconds over a 60 second interval, the logical CPU percent for the partition would be (90 seconds / 60 seconds) / 2 which equals 75%.
When the number of logical processors assigned to a partition is the same as the number of physical processors, the partition's physical and logical CPU utilization should be the same.
Partition Overhead% In an LPAR environment, the percentage of time the system spends managing a logical partition. The value is calculated as the difference between the total software times (TCB and SRB) and the total hardware time (CPU) over the last reporting interval. Typically, z/OS overhead increases as workloads make greater demands on resources. A valid value is a number to two decimal places accuracy. The range for this value is from 0 to 100.00.
Partition PCPD% In an LPAR environment, the percentage of time on average that a physical processor was dispatched in the logical partition during the interval. This value is based on dispatch time, not CPU busy time. A valid value is an integer. The range for this value is from 0 to 100.
The value is calculated by dividing dispatch time by elapsed time and then dividing that product by the number of physical processors in the LPAR. Thus, if an LPAR has been defined as having four physical processors and the sum of their dispatch times was 120 seconds over a 60 second interval, the physical CPU percent for the partition would be (120 seconds / 60 seconds) / 4 which equals 50%.
When the number of logical processors assigned to a partition is the same as the number of physical processors, the partition's physical and logical CPU utilization should be the same.
Percent LPAR MSU Capacity The percentage of the Entitled or Defined Capacity millions of service units (MSUs) of this LPAR. If no Defined Capacity is specified for the LPAR, the Entitled MSUs effectively cap the maximum service an LPAR can consume. The Entitled value is based on the number of logical standard CPs configured to the LPAR, including any that are on standby. This number, multiplied by the MSU rating of a single physical standard CP, sets the entitled service. If LPAR Group Capping is in effect for this LPAR, the Group LPAR MSU Limit establishes the maximum service that the LPAR can consume. A valid value is a number to one decimal place accuracy.
Physical CPU Count A count of the physical CPUs online to this LPAR. A valid value is an integer.
RMF LPAR CPU Percent The average system CPU percentage as seen by the LPAR hosting the z/OS system, calculated over the most recent RMF interval. The first RMF interval after the agent is started contains partial values. When RMF is not active, this value is zero. A valid value is a number to one decimal place accuracy. The range for this value is from 0 to 100.0. Values appear on the workspace as follows:
The initial display will contain zeros for the RMF LPAR CPU Percent attribute. It is most likely that the collection agent will be started somewhere in the middle of an already running RMF interval. Therefore, at the completion of the first RMF interval after the collection agent was started, these attributes will contain partial values. Only after completion of the first full RMF interval will these attributes display complete and correct values. If Resource Measurement Facility (RMF) is not started, the value for this attribute will be 0.0.
RMF MVS CPU Percent The average system CPU percentage as seen by z/OS, calculated over the most recent RMF interval. When RMF is not active, this value is zero. The first RMF interval after the agent is started contains partial values. A valid value is a number to one decimal place accuracy. The range for this value is from 0 to 100.0. Values appear on the workspace as follows:
The initial display will contain zeros for the RMF LPAR CPU Percent attribute. It is most likely that the collection agent will be started somewhere in the middle of an already running RMF interval. Therefore, at the completion of the first RMF interval after the collection agent was started, these attributes will contain partial values. Only after completion of the first full RMF interval will these attributes display complete and correct values. If Resource Measurement Facility (RMF) is not started, the value for this attribute will be 0.0.
RMF MVS CPU% Snapshot The system CPU as seen by the z/OS system. This is the current/latest sample reported by RMF. A valid value is a number to one decimal place accuracy. The range for this value is from 0 to 100.0. Values appear on the workspace as follows:
Total Enclave% The percentage of total CPU time spent doing enclave work. In a complex with more than one CPU, z/OS overhead can be computed based on the number of processors, or normalized to a maximum of 100%. A valid value is an integer. The range for this value is from 0 to 500.
Total SRB% The percentage of total CPU time spent doing SRB work. In a complex with more than one CPU, z/OS overhead can be computed based on the number of processors, or normalized to a maximum of 100%. A valid value is an integer. The range for this value is from 0 to 500.
Total TCB% The percentage of total CPU time spent doing TCB work. In a complex with more than one CPU, z/OS overhead can be computed based on the number of processors, or normalized to a maximum of 100%. A valid value is an integer. The range for this value is from 0 to 500.
Undispatched Tasks The number of tasks or address spaces that have not been dispatched by the SRM due to constraints. A valid value is an integer.
WLM Mode The workload manager mode. A valid value is an integer. Values appear on the workspace as follows:
zAAPs/zCBPs Offline The System z Container Based Processors (zCBPs) and zSeries Application Assist Processors (zAAPs) offline to this LPAR, as a string of comma-delimited hexadecimal 2-digit processor IDs. A valid value is a string of up to 304 characters.
zAAPs/zCBPs Online The System z Container Based Processors (zCBPs) and zSeries Application Assist Processors (zAAPs) online to this LPAR, as a string of comma-delimited hexadecimal 2-digit processor IDs. A valid value is a string of up to 304 characters.
zCBP/zAAP CrossOver Indicates whether System z Container Based Processor (zCBP) or zSeries Application Assist Processor (zAAP) crossover of zCBP or zAAP work to regular processors is allowed (Yes) or not allowed (No). A valid value is a string of up to 4 characters.
zCBP/zAAP HonorPriority Indicates whether System z Container Based Processor (zCBP) or zSeries Application Assist Processor (zAAP) work that has crossed over to a regular processor has its dispatch priority honored (Yes) or not (No). A valid value is a string of up to 4 characters.
zCBP/zAAP Relative Processor Speed The speed of System z Container Based Processors (zCBPs) or zSeries Application Assist Processors (zAAPs) relative to regular processors. Expressed as a ratio in the format nn.nn:1. A valid value is a string of up to 8 characters.
zIIP HonorPriority Indicates whether System z Integrated Information Processor (zIIP) work that has crossed over to a regular processor has its dispatch priority honored (Yes) or not (No). A valid value is a string of up to 4 characters.
zIIP Relative Processor Speed The speed of System z Integrated Information Processors (zIIPs) relative to regular processors. Expressed as a ratio in the format nn.nn:1. A valid value is a string of up to 8 characters.
zIIPs Offline The System z Integrated Information Processors (zIIPs) offline to this LPAR, as a string of comma-delimited hexadecimal 2-digit processor IDs. A valid value is a string of up to 770 characters.
zIIPs Online The System z Integrated Information Processors (zIIPs) online to this LPAR, as a string of comma-delimited hexadecimal 2-digit processor IDs. A valid value is a string of up to 770 characters.