Normalized CPU by CPU Type |
  
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Normalized CPU by CPU Type |
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This report shows the benefit from zAAP and zIIP processors.
It shows processor usage for CP, zAAP and zIIP processors, plus "Normalized" time for the zAAP and zIIP processors. Normalized time is CPU time adjusted to account for the difference in speed between CPs and zAAP and zIIP processors.
Actual usage is shown in solid colors, while the normalized time is shown in a translucent color.
The usage is shown as Equivalent CPs - which is the number of CPs that the CP + zAAP + zIIP time would be equivalent to, if the work was all running on CPs.
For example, if you have 4 CPs and 1 zIIP, and the zIIP is 50% faster than a CP, if they are all 100% busy they would be equivalent to 4 + (1 x 150%) = 5.5 CPs.
CPU type |
Number |
Speed |
Equivalent CPs |
CP |
4 |
100% |
4 |
zIIP |
1 |
150% |
1.5 |
Total |
5 |
|
5.5 |
Sample equivalent CP calculation
In this example, the actual number of CPUs (CP and zIIP) is 5, but due to the faster speed of the zIIP this is equivalent to 5.5 CPs.
Report Parameters
Parameter |
Description |
Data System |
The SMF ID of the system that wrote the record.
RMF can write CPU usage information for all LPARs on the CPC from each z/OS system on the CPC. The report will only use data from one system. Use this parameter to select which system's data to use. |
LPAR |
Show CPU usage for this LPAR. |
CPU Type |
Show a specific CPU type e.g. CP, IFA, IIP. |
SMF records used for this report
Type |
Subtype |
70 |
1 |