Interrupts (CPUprcrInterruptsPerSec)

Displays the number of device interrupts encountered by the processor per second.

An interrupt occurs when a device has completed a task or when it requires attention. Normal thread execution is suspended during interrupts. An interrupt may cause the processor to switch to another, higher priority thread.
Under the _Total NT_CPU application instance, this parameter shows the total number of interrupts per second for all processors on the system.

Recommendations

This parameter indicates the rate at which interrupts are being generated by system hardware. If this value is high, a hardware device is generating an excessive number of interrupts. The device causing the problem may be a video card, the network interface card (NIC), the hard disk driver, or some other device such as the mouse.

Consider running a diagnostic test on your NIC to check for configuration and hardware errors. Most NIC manufacturers provide a diskette that contains testing software. If your keyboard or mouse appears to be behaving poorly, try replacing your keyboard or mouse and see if fewer interrupts occur.

Thresholds for alarms and warnings

No default thresholds have been set for this parameter. The baselining overview  may help you determine appropriate settings for your system.

Default properties