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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 Warning Critical Info
timer i0 derive Interrupt 0, for device(s): timer
i8042 i1 derive Interrupt 1, for device(s): i8042
rtc0 i8 derive Interrupt 8, for device(s): rtc0
acpi i9 derive Interrupt 9, for device(s): acpi
i8042 i12 derive Interrupt 12, for device(s): i8042
i801_smbus i16 derive Interrupt 16, for device(s): i801_smbus
virtio2-config i24 derive Interrupt 24, for device(s): virtio2-config
virtio2-input.0 i25 derive Interrupt 25, for device(s): virtio2-input.0
virtio2-output.0 i26 derive Interrupt 26, for device(s): virtio2-output.0
virtio0-config i27 derive Interrupt 27, for device(s): virtio0-config
virtio0-control i28 derive Interrupt 28, for device(s): virtio0-control
virtio0-event i29 derive Interrupt 29, for device(s): virtio0-event
virtio0-request i30 derive Interrupt 30, for device(s): virtio0-request
virtio1-config i31 derive Interrupt 31, for device(s): virtio1-config
virtio1-control i32 derive Interrupt 32, for device(s): virtio1-control
virtio1-event i33 derive Interrupt 33, for device(s): virtio1-event
virtio1-request i34 derive Interrupt 34, for device(s): virtio1-request
0000:00:1f.2 i35 derive Interrupt 35, for device(s): 0000:00:1f.2
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
Nested posted-interrupt event iNPI derive Interrupt NPI, for device(s): Nested posted-interrupt event
Posted-interrupt wakeup event iPIW derive Interrupt PIW, for device(s): Posted-interrupt wakeup event