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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
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
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
12-edge i8042 i12 derive     Interrupt 12, for device(s): 12-edge i8042
16 i16 derive     Interrupt 16, for device(s): 16-fasteoi uhci_hcd:usb3, uhci_hcd:usb6, i801_smbus
17-fasteoi uhci_hcd:usb4, uhci_hcd:usb7 i17 derive     Interrupt 17, for device(s): 17-fasteoi uhci_hcd:usb4, uhci_hcd:usb7
18-fasteoi uhci_hcd:usb5, uhci_hcd:usb8 i18 derive     Interrupt 18, for device(s): 18-fasteoi uhci_hcd:usb5, uhci_hcd:usb8
19-fasteoi ehci_hcd:usb1, ehci_hcd:usb2 i19 derive     Interrupt 19, for device(s): 19-fasteoi ehci_hcd:usb1, ehci_hcd:usb2
20-fasteoi virtio0 i20 derive     Interrupt 20, for device(s): 20-fasteoi virtio0
21-fasteoi qxl i21 derive     Interrupt 21, for device(s): 21-fasteoi qxl
458752-edge PCIe PME, aerdrv, pciehp i24 derive     Interrupt 24, for device(s): 458752-edge PCIe PME, aerdrv, pciehp
460800-edge PCIe PME, aerdrv, pciehp i25 derive     Interrupt 25, for device(s): 460800-edge PCIe PME, aerdrv, pciehp
462848-edge PCIe PME, aerdrv, pciehp i26 derive     Interrupt 26, for device(s): 462848-edge PCIe PME, aerdrv, pciehp
464896-edge PCIe PME, aerdrv, pciehp i27 derive     Interrupt 27, for device(s): 464896-edge PCIe PME, aerdrv, pciehp
2637824-edge shpchp i28 derive     Interrupt 28, for device(s): 2637824-edge shpchp
2654208-edge shpchp i29 derive     Interrupt 29, for device(s): 2654208-edge shpchp
2670592-edge shpchp i30 derive     Interrupt 30, for device(s): 2670592-edge shpchp
2686976-edge shpchp i31 derive     Interrupt 31, for device(s): 2686976-edge shpchp
3293184-edge virtio2-config i32 derive     Interrupt 32, for device(s): 3293184-edge virtio2-config
3293185-edge virtio2-virtqueues i33 derive     Interrupt 33, for device(s): 3293185-edge virtio2-virtqueues
4145152-edge virtio4-config i34 derive     Interrupt 34, for device(s): 4145152-edge virtio4-config
4145153-edge virtio4-input i35 derive     Interrupt 35, for device(s): 4145153-edge virtio4-input
3227648-edge virtio1-config i36 derive     Interrupt 36, for device(s): 3227648-edge virtio1-config
3227649-edge virtio1-control i37 derive     Interrupt 37, for device(s): 3227649-edge virtio1-control
3227650-edge virtio1-event i38 derive     Interrupt 38, for device(s): 3227650-edge virtio1-event
3227651-edge virtio1-request i39 derive     Interrupt 39, for device(s): 3227651-edge virtio1-request
3227652-edge virtio1-request i40 derive     Interrupt 40, for device(s): 3227652-edge virtio1-request
512000-edge ahci[0000:00:1f.2] i41 derive     Interrupt 41, for device(s): 512000-edge ahci[0000:00:1f.2]
3440640-edge virtio3-config i42 derive     Interrupt 42, for device(s): 3440640-edge virtio3-config
3440641-edge virtio3-input.0 i43 derive     Interrupt 43, for device(s): 3440641-edge virtio3-input.0
3440642-edge virtio3-output.0 i44 derive     Interrupt 44, for device(s): 3440642-edge virtio3-output.0
442368-edge snd_hda_intel:card0 i45 derive     Interrupt 45, for device(s): 442368-edge snd_hda_intel:card0
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