CPU Usage

Description

The CPU Usage metric provides information about the percentage of time the CPU was in various states, for example, idle state and wait state. The metric also provides information about the percentage of CPU time spent in user and system mode. All data is per-CPU in a multi-CPU system.

On HP Tru64, this information is available as the cumulative total for all the CPUs and not for each CPU which is monitored in the Load metric. Hence, this metric is not available on HP Tru64.

The data sources for this metric category include the following:

Host Data Source

Solaris kernel statistics (class cpu_stat)

HP pstat_getprocessor() system call

Linux /proc/stat

HP Tru64 not available

IBM AIX oracle_kstat() system call

Windows performance data counters

Host	Data Source
Solaris	kernel statistics (class cpu_stat)
HP	pstat_getprocessor() system call
Linux	/proc/stat
HP Tru64	not available
IBM AIX	oracle_kstat() system call
Windows	performance data counters