Viewing the CPU Utilization report
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. Typically, a SteelHead operates on approximately 30 to 40 percent CPU capacity during nonpeak hours and approximately 60 to 70 percent capacity during peak hours. No single SteelHead CPU usage should exceed 90 percent.
The CPU Utilization report answers these questions:
• How much of the CPU is being used?
• What’s the average and peak percentage of the CPU being used?
Mouse over a specific data point to see the values and exact time stamp.
You view the CPU Utilization report under Reports > Diagnostics: CPU Utilization.
CPU Utilization page
These options are available to customize the report:
Time Interval specifies 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 don’t apply to a particular report are dimmed. For a custom time interval, enter the start time and end time using this format: YYYY/MM/DD HH:MM:SS
You can quickly see the newest data and see data points as they’re added to the chart dynamically. To display the newest data, click Show newest data.
Display Mode specifies one of these displays from the drop-down menu:
• Brief—Displays the CPU utilization percentage of all CPU cores combined as a systemwide average.
• Detailed—Displays the CPU percentages for each RiOS core individually. 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.