Viewing Reports and Logs : Viewing CPU utilization reports
  
Viewing CPU utilization reports
The CPU Utilization report summarizes the percentage of all of the CPU cores used in the system within the time period specified. You can display individual cores or an overall average, or both.
For details about the report format, see Overview.
General usage guidelines
Typically, an appliance operates on approximately 30 to 40 percent CPU capacity during nonpeak hours and approximately 60 to 70 percent capacity during peak hours. No single appliance CPU usage should exceed 90 percent.
What this report tells you
The CPU Utilization report answers these questions:
•  How much of the CPU is being used?
•  What is the average and peak percentage of the CPU being used?
About report graphs
Mouse over a specific data point to see the values and exact time stamp.
To view the CPU Utilization report
1. Choose Appliance > Diagnostics: CPU Utilization to display the CPU Utilization page.
Figure: CPU Utilization page
2. Use the controls to customize the report as described in this table.
Control
Description
Time Interval
Select a report time interval of 5 minutes (5m), 1 hour (1h), 1 day (1d), 1 week (1w), All, or type a custom date. All includes statistics for the last 30 days.
Time intervals that do not apply to a particular report are dimmed.
For a custom time interval, enter the start time and end time using the format yyyy/mm/dd hh:mm:ss.
You can quickly see the newest data and see data points as they are added to the chart dynamically. To display the newest data, click Show newest data.
Display Mode
Select one of these displays from the drop-down menu:
•  Brief - Displays the CPU utilization percentage for both the VSP CPUs and the RiOS CPUs. The display includes the CPU type (VSP or RiOS) as part of the series name.
•  Detailed - Displays the individual CPU utilization percentage for the VSP CPUs and the RiOS CPUs. The display includes the CPU type (VSP or RiOS) as part of the series name. The individual cores appear with a number and a color in the data series. To hide or display a core in the plot area, select or clear the check box next to the core name.