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Shows the number of different IRQs received by the kernel. High disk or network traffic can cause a high number of interrupts (with good hardware and drivers this will be less so). Sudden high interrupt activity with no associated higher system activity is not normal.

Field Internal name Type Warn Crit Info
timer i0 derive     Interrupt 0, for device(s): timer
rtc0 i8 derive     Interrupt 8, for device(s): rtc0
acpi i9 derive     Interrupt 9, for device(s): acpi
ehci_hcd:usb1, ehci_hcd:usb2 i22 derive     Interrupt 22, for device(s): ehci_hcd:usb1, ehci_hcd:usb2
hpet2 i40 derive     Interrupt 40, for device(s): hpet2
hpet3 i41 derive     Interrupt 41, for device(s): hpet3
hpet4 i42 derive     Interrupt 42, for device(s): hpet4
hpet5 i43 derive     Interrupt 43, for device(s): hpet5
hpet6 i44 derive     Interrupt 44, for device(s): hpet6
aerdrv, PCIe PME i45 derive     Interrupt 45, for device(s): aerdrv, PCIe PME
PCIe PME i46 derive     Interrupt 46, for device(s): PCIe PME
ahci i47 derive     Interrupt 47, for device(s): ahci
mpt2sas0-msix0 i48 derive     Interrupt 48, for device(s): mpt2sas0-msix0
eth0-0 i49 derive     Interrupt 49, for device(s): eth0-0
eth0-1 i50 derive     Interrupt 50, for device(s): eth0-1
eth0-2 i51 derive     Interrupt 51, for device(s): eth0-2
eth0-3 i52 derive     Interrupt 52, for device(s): eth0-3
eth0-4 i53 derive     Interrupt 53, for device(s): eth0-4
eth0-5 i54 derive     Interrupt 54, for device(s): eth0-5
eth0-6 i55 derive     Interrupt 55, for device(s): eth0-6
eth0-7 i56 derive     Interrupt 56, for device(s): eth0-7
Non-maskable interrupts iNMI derive     Interrupt NMI, for device(s): Non-maskable interrupts
Local timer interrupts iLOC derive     Interrupt LOC, for device(s): Local timer interrupts
Spurious interrupts iSPU derive     Interrupt SPU, for device(s): Spurious interrupts
Performance monitoring interrupts iPMI derive     Interrupt PMI, for device(s): Performance monitoring interrupts
IRQ work interrupts iIWI derive     Interrupt IWI, for device(s): IRQ work interrupts
APIC ICR read retries iRTR derive     Interrupt RTR, for device(s): APIC ICR read retries
Rescheduling interrupts iRES derive     Interrupt RES, for device(s): Rescheduling interrupts
Function call interrupts iCAL derive     Interrupt CAL, for device(s): Function call interrupts
TLB shootdowns iTLB derive     Interrupt TLB, for device(s): TLB shootdowns
Thermal event interrupts iTRM derive     Interrupt TRM, for device(s): Thermal event interrupts
Threshold APIC interrupts iTHR derive     Interrupt THR, for device(s): Threshold APIC interrupts
Machine check exceptions iMCE derive     Interrupt MCE, for device(s): Machine check exceptions
Machine check polls iMCP derive     Interrupt MCP, for device(s): Machine check polls
Hypervisor callback interrupts iHYP derive     Interrupt HYP, for device(s): Hypervisor callback interrupts
ERR iERR derive      
MIS iMIS derive