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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
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
ehci_hcd:usb1 i16 derive     Interrupt 16, for device(s): ehci_hcd:usb1
ehci_hcd:usb2 i17 derive     Interrupt 17, for device(s): ehci_hcd:usb2
i801_smbus i18 derive     Interrupt 18, for device(s): i801_smbus
xhci_hcd i28 derive     Interrupt 28, for device(s): xhci_hcd
xhci_hcd i29 derive     Interrupt 29, for device(s): xhci_hcd
xhci_hcd i30 derive     Interrupt 30, for device(s): xhci_hcd
xhci_hcd i31 derive     Interrupt 31, for device(s): xhci_hcd
xhci_hcd i32 derive     Interrupt 32, for device(s): xhci_hcd
xhci_hcd i33 derive     Interrupt 33, for device(s): xhci_hcd
xhci_hcd i34 derive     Interrupt 34, for device(s): xhci_hcd
xhci_hcd i35 derive     Interrupt 35, for device(s): xhci_hcd
xhci_hcd i36 derive     Interrupt 36, for device(s): xhci_hcd
megasas0-msix0 i38 derive     Interrupt 38, for device(s): megasas0-msix0
enp0s25 i39 derive     Interrupt 39, for device(s): enp0s25
p1p1-rx-0 i40 derive     Interrupt 40, for device(s): p1p1-rx-0
0000:00:1f.2 i41 derive     Interrupt 41, for device(s): 0000:00:1f.2
p1p1-tx-0 i42 derive     Interrupt 42, for device(s): p1p1-tx-0
p1p1 i43 derive     Interrupt 43, for device(s): p1p1
mei_me i44 derive     Interrupt 44, for device(s): mei_me
snd_hda_intel:card0 i45 derive     Interrupt 45, for device(s): snd_hda_intel:card0
snd_hda_intel:card1 i46 derive     Interrupt 46, for device(s): snd_hda_intel:card1
nvidia i47 derive     Interrupt 47, for device(s): nvidia
dmar0 i48 derive     Interrupt 48, for device(s): dmar0
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