Checking CPU resources

To check the CPU resources, enter these commands during the busy hour or when alarms are being logged:

1. During the busy hour or when alarms are being logged, type sar and press Enter.

The system displays the CPU Resources screen. The sum of columns 2 and 3, (usr + sys) represents the percentage of CPU being used.

2. During the busy hour only, type sar-u 5 50 and press Enter.

The system displays current CPU usage every 5 seconds for 50 seconds.

If either of these tests show CPU utilization consistently over 70 percent, it is likely that CPU overload is causing the performance problem.

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