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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-fasteoi i801_smbus i16 derive     Interrupt 16, for device(s): 16-fasteoi i801_smbus
20-fasteoi ehci_hcd:usb1 i20 derive     Interrupt 20, for device(s): 20-fasteoi ehci_hcd:usb1
21-fasteoi uhci_hcd:usb2, virtio1 i21 derive     Interrupt 21, for device(s): 21-fasteoi uhci_hcd:usb2, virtio1
22-fasteoi qxl i22 derive     Interrupt 22, for device(s): 22-fasteoi qxl
65536-edge PCIe PME, aerdrv i24 derive     Interrupt 24, for device(s): 65536-edge PCIe PME, aerdrv
512000-edge ahci[0000:00:1f.2] i25 derive     Interrupt 25, for device(s): 512000-edge ahci[0000:00:1f.2]
49152-edge virtio0-config i26 derive     Interrupt 26, for device(s): 49152-edge virtio0-config
49153-edge virtio0-input.0 i27 derive     Interrupt 27, for device(s): 49153-edge virtio0-input.0
49154-edge virtio0-output.0 i28 derive     Interrupt 28, for device(s): 49154-edge virtio0-output.0
262144-edge virtio2-config i29 derive     Interrupt 29, for device(s): 262144-edge virtio2-config
262145-edge virtio2-input.0 i30 derive     Interrupt 30, for device(s): 262145-edge virtio2-input.0
262146-edge virtio2-output.0 i31 derive     Interrupt 31, for device(s): 262146-edge virtio2-output.0
425984-edge virtio3-config i32 derive     Interrupt 32, for device(s): 425984-edge virtio3-config
425985-edge virtio3-input.0 i33 derive     Interrupt 33, for device(s): 425985-edge virtio3-input.0
425986-edge virtio3-output.0 i34 derive     Interrupt 34, for device(s): 425986-edge virtio3-output.0
442368-edge virtio4-config i35 derive     Interrupt 35, for device(s): 442368-edge virtio4-config
442369-edge virtio4-input.0 i36 derive     Interrupt 36, for device(s): 442369-edge virtio4-input.0
442370-edge virtio4-output.0 i37 derive     Interrupt 37, for device(s): 442370-edge virtio4-output.0
458752-edge virtio5-config i38 derive     Interrupt 38, for device(s): 458752-edge virtio5-config
458753-edge virtio5-input.0 i39 derive     Interrupt 39, for device(s): 458753-edge virtio5-input.0
458754-edge virtio5-output.0 i40 derive     Interrupt 40, for device(s): 458754-edge virtio5-output.0
475136-edge virtio6-config i41 derive     Interrupt 41, for device(s): 475136-edge virtio6-config
475137-edge virtio6-input.0 i42 derive     Interrupt 42, for device(s): 475137-edge virtio6-input.0
475138-edge virtio6-output.0 i43 derive     Interrupt 43, for device(s): 475138-edge virtio6-output.0
524288-edge virtio7-config i44 derive     Interrupt 44, for device(s): 524288-edge virtio7-config
524289-edge virtio7-control i45 derive     Interrupt 45, for device(s): 524289-edge virtio7-control
524290-edge virtio7-event i46 derive     Interrupt 46, for device(s): 524290-edge virtio7-event
524291-edge virtio7-request i47 derive     Interrupt 47, for device(s): 524291-edge virtio7-request
524292-edge virtio7-request i48 derive     Interrupt 48, for device(s): 524292-edge virtio7-request
98304-edge snd_hda_intel:card0 i49 derive     Interrupt 49, for device(s): 98304-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
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