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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
2-edge timer i0 derive Interrupt 0, for device(s): 2-edge timer
1-edge i8042 i1 derive Interrupt 1, for device(s): 1-edge i8042
6-edge floppy i6 derive Interrupt 6, for device(s): 6-edge floppy
8-edge rtc0 i8 derive Interrupt 8, for device(s): 8-edge rtc0
9-fasteoi acpi i9 derive Interrupt 9, for device(s): 9-fasteoi acpi
10 i10 derive Interrupt 10, for device(s): 10-fasteoi virtio2, uhci_hcd:usb3, uhci_hcd:usb4
11-fasteoi ehci_hcd:usb1, uhci_hcd:usb2 i11 derive Interrupt 11, for device(s): 11-fasteoi ehci_hcd:usb1, uhci_hcd:usb2
12-edge i8042 i12 derive Interrupt 12, for device(s): 12-edge i8042
14-edge ata_piix i14 derive Interrupt 14, for device(s): 14-edge ata_piix
15-edge ata_piix i15 derive Interrupt 15, for device(s): 15-edge ata_piix
49152-edge virtio0-config i24 derive Interrupt 24, for device(s): 49152-edge virtio0-config
49153-edge virtio0-input.0 i25 derive Interrupt 25, for device(s): 49153-edge virtio0-input.0
49154-edge virtio0-output.0 i26 derive Interrupt 26, for device(s): 49154-edge virtio0-output.0
81920-edge virtio1-config i27 derive Interrupt 27, for device(s): 81920-edge virtio1-config
81921-edge virtio1-req.0 i28 derive Interrupt 28, for device(s): 81921-edge virtio1-req.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
Hypervisor callback interrupts iHYP derive Interrupt HYP, for device(s): Hypervisor callback interrupts
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