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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
i8042 i1 derive     Interrupt 1, for device(s): i8042
serial i4 derive     Interrupt 4, for device(s): serial
floppy i6 derive     Interrupt 6, for device(s): floppy
rtc0 i8 derive     Interrupt 8, for device(s): rtc0
acpi i9 derive     Interrupt 9, for device(s): acpi
virtio4 i10 derive     Interrupt 10, for device(s): virtio4
uhci_hcd:usb1 i11 derive     Interrupt 11, for device(s): uhci_hcd:usb1
i8042 i12 derive     Interrupt 12, for device(s): i8042
ata_piix i14 derive     Interrupt 14, for device(s): ata_piix
ata_piix i15 derive     Interrupt 15, for device(s): ata_piix
virtio0-config i24 derive     Interrupt 24, for device(s): virtio0-config
virtio0-input.0 i25 derive     Interrupt 25, for device(s): virtio0-input.0
virtio0-output.0 i26 derive     Interrupt 26, for device(s): virtio0-output.0
virtio3-config i27 derive     Interrupt 27, for device(s): virtio3-config
virtio3-req.0 i28 derive     Interrupt 28, for device(s): virtio3-req.0
virtio1-config i29 derive     Interrupt 29, for device(s): virtio1-config
virtio1-input.0 i30 derive     Interrupt 30, for device(s): virtio1-input.0
virtio1-output.0 i31 derive     Interrupt 31, for device(s): virtio1-output.0
virtio2-config i32 derive     Interrupt 32, for device(s): virtio2-config
virtio2-input.0 i33 derive     Interrupt 33, for device(s): virtio2-input.0
virtio2-output.0 i34 derive     Interrupt 34, for device(s): virtio2-output.0
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
Deferred Error APIC interrupts iDFR derive     Interrupt DFR, for device(s): Deferred Error 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
ERR iERR derive      
MIS iMIS derive      
Posted-interrupt notification event iPIN derive     Interrupt PIN, for device(s): Posted-interrupt notification event
Posted-interrupt wakeup event iPIW derive     Interrupt PIW, for device(s): Posted-interrupt wakeup event