For the CPC level chart, CPC level PR/SM data element values are substituted for the LPAR data elements:
ENGDISPT – Total CP Engine Dispatch (Set to PRSMTCDT – Total CP Dispatch Time / 3600)
ENGDISPE – Effective CP Engine Dispatch (Set to PRSMTCET – Total CP Dispatch Time – Effective / 3600)
This vertical bars, for the CPC level LPAR ##CPC##, show the total and effective dispatch of the physical processors in the entire shared CP engine pool. For this chart, a user data step takes the following actions before the ENGDISPT and ENGDISPE derivations:
This process permits a CPC level view of the physical shared CP engine pool dispatch activity. The total and effective dispatch times are divided by 3600 to convert from seconds of dispatch to hours of dispatch. Because one engine can be dispatched a maximum of one hour, per hour, this conversion allows the dispatch of the engine pool to be represented as physical engine dispatch hour equivalents. For example, three CP engines could, at full utilization, provide three hours of dispatch time in one hour.
LPCAVCPU - Avg Number of Active CP Processors (Set to PRSMACSP – Avg CP Shareable Processors))
This horizontal reference line, for the CPC level LPAR ##CPC##, shows the average number of physical processors in the shared CP engine pool. While the data extract plots data element LPCAVCPU, which is the average number of logical CP engines assigned to an LPAR—for the ##CPC## chart, a user data step populates LPCAVCPU with the value for PRSMACSP—which is the average number of physical engines in the shared CP engine pool. The actual dispatch engine equivalents, charted with the vertical bars, can reach, but should never exceed this line. IBM features like capacity provisioning and on/off capacity on demand can activate and deactivate physical processors—so this line may not reflect a constant value over the entire day.
HOUR – Hour of Day
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