IBM PERFORMANCE MANAGEMENT FOR POWER SYSTEMS - GRAPH REFERENCE DOCUMENT 10-2010 Reference page 50

System and Interactive Guidelines
This metric shows how much both the system jobs and the interactive jobs are using of the
processor cycles.
Interactive response time can deteriorate when the total of the system and interactive cycles
approaches or exceeds the values identified in the table below:
Guidelines for System and Interactive Utilization
Number of Average Marginal %
Processors
1 45%
2 60%
3 67%
4 71%
> 4 75%
What to Look For in Processor Graphs
When analyzing the processor graphs, look for the following:

Is the utilization close to the guidelines?

Is the trend a rising one?

Is the utilization high all the time or are there periods of low utilization?
46 PM for Power Systems Graph Reference Document
Average Critical % Peak Marginal %
60% 56%
75% 72%
81% 80%
85% 81%
90% 86%
Peak Critical %
70%
83%
88%
91%
94%