CPU Usage Summary

Overview

The CPU Usage Summary report displays minute-by-minute historical information about CPU usage for the last hour. The information is displayed as a table and a line graph.

Storage destination

Reports/UNIX/Troubleshooting/Recent Past/

Record

System Summary Overview (PI)

Fields

Field nameExplanation
15-Minute Run Queue AvgThe average number of threads over the last 15 minutes, other than threads waiting in the execution queue for the kernel.
On HP-UX, Solaris, and AIX, this value does not include the number of threads waiting for I/O. On Linux, this value includes the number of threads waiting for I/O.
CPU %CPU usage (%).
This is also the average value of the percentage for each processor (for AIX V6.1 or later, it includes processors after logical partitioning by the Micro-Partitioning function).
Context SwitchesNumber of times the context switch was executed.
Idle %Percentage of time that the CPU is in idle status (%).
This is also the average value of the percentage for each processor (for AIX V6.1 or later, it includes processors after logical partitioning by the Micro-Partitioning function).
InterruptsNumber of times interrupt occurred.
Kernel CPU %Percentage of time that the CPU is operating in kernel mode (%).
This is also the average value of the percentage for each processor (for AIX V6.1 or later, it includes processors after logical partitioning by the Micro-Partitioning function).
Run QueueThe number of processes, including processes waiting in the queue for the kernel.
System CallsNumber of times a system call was issued.
User CPU %Percentage of time that the CPU is operating in user mode (%).
This is also the average value of the percentage for each processor (for AIX V6.1 or later, it includes processors after logical partitioning by the Micro-Partitioning function).
Wait %Percentage of time that the CPU is in I/O waiting status (%).
This is also the average value of the percentage for each processor (for AIX V6.1 or later, it includes processors after logical partitioning by the Micro-Partitioning function).