This INTEGER reports interrupts per second for the specific core identified by multiProcIndex, mirroring procInterrupts per core. Since NIC interrupt handling is often bound to specific cores, a core showing a disproportionate interrupt rate compared to its peers would point to that particular core being the one servicing a specific network interface's traffic. An admin tuning IRQ affinity settings for better multi-core balance would use this field to verify the change actually redistributed interrupt load.