The CPU utilization metric is based on average CPU usage over the time period selected for the view.
Utilization percent is a term applied to the portion of a time period that a component is doing work, divided by the total amount of time in the time period. The result is multiplied by 100 to obtain a percentage.
For a CPU, the busy time is spent processing program instructions. Here is an example of how to interpret a utilization rate of 70% for a 5-minute time period: "For 70% of the 5 minutes, the CPU was fully utilized."
Two view types include the CPU utilization metric. An aggregate view displays the average value for CPU utilization across all the CPUs in a device. A 'Top N' multiview provides CPU utilization individually for each discrete CPU. In the Multiview of CPU Utilization, a separate trend chart reports each CPU individually, up to 48 CPUs per device.
High rates of CPU utilization can indicate poor application performance. With high CPU utilization, processes must wait in the processor queue for a previous process to complete execution.
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