IBM PERFORMANCE MANAGEMENT FOR POWER SYSTEMS - INTERACTIVE GRAPHING SUPPORT FOR I Manual page 9

IBM Global Technology Services
Peak Processor Utilization, Total – with Trend Projections
9 © 2010 IBM Corporation
Peak Processor Utilization, Total
The Peak Processor Utilization graph shows the average total peak processor utilization per month for the last
13 months and it also provides you with a growth trend. It also shows you how the workload changes during a
year.
The symbols used on this graph are explained as follows:
• The forward slash (green) in the bottom of the graph shows the processor utilization that is acceptable.
• The cross-hatch (yellow) in the middle of the graph shows the processor utilization that is marginal.
• The backward slash (red) at the top of the graph shows the processor utilization that is critical.
• The black diamond shows the average of the two busiest hours per shift during the month. Actually, the black
diamond shows the size of the workload on the partition in CPW values. On the trend months, the pink diamond
shows the projected peak processor utilization based on the three last months utilization. The blue square
shows the projected peak processor utilization based on the last six months utilization. The yellow star shows
the projected peak processor utilization based on the last 12 months of utilization.
PM for Power Systems will depict the IBM i workload growth over time in CPWs. The advantage of plotting
CPWs is that it is a normalized unit of work independent of the resources allocated to the server/LPAR. This
means that the black diamonds on the graph represent the workload trend independent of the resources
allocated to the server/LPAR.
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