PRSM
The PRSM (PRS) service displays CPU busy percentage and processor usage by partition.
When invoked in a PR/SM environment, the PRSM service monitors and reports logical partition activity. The average logical and physical processor utilization is shown for each partition. CPU busy percentage is computed for the current partition.
Syntax
The parameters are defined as follows:
Parameter | Description |
|---|---|
time | length of the sample period in seconds; the default sample period is 10 seconds, and the maximum period is 300 seconds |
ALL | includes inactive as well as active partitions in the display |
Example
To display CPU busy percentage and processor usage when running under the IBM PR/SM complex, type
PRSM,10
[2] [3] [4]
AMTLP1I Partitions: 24; CPUs: CP 18, ICF 4
AMTLP0I
[5] [6] [7] [8] [9] [10] [11] [12] [13]
AMTLP2I C
AMTLP3I CPU Log. W A Relative % Log. % Phy.
AMTLP4I Partition Type CPUs A P Weight Share % Util. Util.
AMTLP5I --------- ---- ---- - - ----- -------- ----- ------
AMTLP6I SJSC CP 2 90 3.7 21.3 2.4
AMTLP6I CF01 ICF 1 400 50.0 97.9 24.5
AMTLP6I CF02 ICF 1 Y -DED- 100.0 ---- ----
AMTLP6I CF03 ICF 1 100 12.5 90.8 22.7
AMTLP6I CF06 ICF 1 300 37.5 90.9 22.7
AMTLP6I SJSB CP 2 140 5.8 10.2 1.1
AMTLP6I SJSC CP 3 200 8.2 74.6 12.4
AMTLP6I SJSG CP 1 42 1.7 9.2 .5
AMTLP6I SJSH CP 1 53 2.1 7.4 .4
AMTLP6I SYSI CP 2 114 4.7 9.5 1.1
AMTLP6I SYSM CP 2 120 4.9 12.4 1.4
AMTLP6I SYSN CP 2 140 5.8 18.4 2.0
AMTLP6I SYSP CP 3 200 8.2 63.6 10.6
AMTLP6I VMR CP 2 260 10.7 78.2 8.7
AMTLP6I VM5 CP 2 140 5.8 36.8 4.1
AMTLP6I DB2A CP 2 Y -DED- 100.0 ---- ----
AMTLP6I DB2B CP 2 140 5.8 76.3 8.5
AMTLP6I ESAJ CP 2 122 5.0 16.7 1.9
AMTLP6I ESAM CP 2 114 4.7 47.9 5.3
AMTLP6I IMSA CP 2 130 5.3 6.7 .7
AMTLP6I SJSE CP 2 115 4.7 16.4 1.8
AMTLP6I SYSO CP 2 120 4.9 24.1 2.7
AMTLP6I VM4 CP 2 140 5.8 26.5 2.9
AMTLP6I ZOSE CP 1 30 1.2 .0 .0
AMTLP0I
AMTLPJI Processor Type: CP [14]
AMTLPBI Plex busy: 68.57% [15]
AMTLPCI Plex overhead: 11.10% [16]
AMTLPWI Plex wait: 20.33% [17]
AMTLP0I
AMTLPJI Processor Type: ICF [14]
AMTLPBI Plex busy: 69.90% [15]
AMTLPCI Plex overhead: 4.60% [16]
AMTLPWI Plex wait: 25.50% [17]
AMTLP0I
[18] [19] [20]
AMTLP7I Current CPU
AMTLP8I Partition ID % Busy
AMTLP9I --------- --- ------
AMTLPAI SJSD 0 21.80
AMTLPAI 16 21.75
AMT001A SYSPROG
Legend:
- number of seconds for the sample
- number of partitions that have been defined on this PR/SM complex
- number of physical CPUs in the PR/SM complex, broken down by type
- number of processors of type CP and ICF
- name assigned to the logical partition
- CPU type
- number of logical CPUs that will run in this logical partition
- wait assist status
- Y indicates that wait assist is available.
- A blank indicates that wait assist is not available.
partition capped or not capped
A Y indicates that the partition is not allowed to exceed its relative share of CPU time, even if CPU resources are available.
- weight that the dispatcher for PR/SM will give to this logical partition
- partition’s weight divided by the sum of the weights for all partitions in the plex
- average logical CPU use that this logical partition is making of the processor complex
- average physical CPU use that this logical partition is making of the processor complex
- physical processor utilization across the plex, grouped by type of processor
- percentage of time that this type of processor was gainfully employed
- percentage of this type of processor’s time that was used to determine how the processors should be dispatched to the various LPARs
- percentage of time that this type of processor was not used
partition within which MainView SYSPROG Services is executing; also known as the host partition or host LPAR
More information is available for the host LPAR than for the other LPARs.
- processor ID; one line for each physical processor that is assigned to the LPAR
- percentage of time that the processor was busy while dispatching to the LPAR during the sample period; one line for each physical processor assigned to the LPAR
Related topic