CA MICS Hardware and SCP Analyzer (RMF) Queries › Mainframe CPC Engine Utilization › RMFCPD – CPC and LPAR Daily Shared CP Engine Dispatch by Hour › Overview

Overview

The LPCPDP query creates a single data extract CSV showing hourly CPC and LPAR dispatch percentages for the shared CP (Central Processor) engine pool. For each Central Processing Complex (CPC) encountered in the DAYS timespan HARLPC file, the query generates a CPC level chart. The chart uses vertical bars to show the total and effective dispatch percentage of the physical CP engines for each hour of the day—plus a horizontal reference line showing the total number of physical engines in the shared CP processor pool. Individual charts for each LPAR in the CPC follows the CPC level chart. These charts show the dispatch percentages of the logical CP engines assigned to the LPAR. For the LPAR charts, the horizontal reference line shows the number of logical CP engines active for the LPAR.

The difference between total and effective dispatch represents the amount of the engine resource pool required for multiprocessing management overhead.

Notice in the second example (the LPAR level chart), LPAR CA31 shows that the number of logical CP engines assigned to the LPAR was reduced from seven, at 01:00 AM to six, by 03:00 AM. This reduction in the number of logical engines for LPAR CA31 can be effected with an operator command, or by a dynamic facility such as the Intelligent Resource Director (IRD).