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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
uhci_hcd:usb3, hpilo i16 derive     Interrupt 16, for device(s): uhci_hcd:usb3, hpilo
ehci_hcd:usb2 i20 derive     Interrupt 20, for device(s): ehci_hcd:usb2
ehci_hcd:usb1 i21 derive     Interrupt 21, for device(s): ehci_hcd:usb1
hpsa0 i73 derive     Interrupt 73, for device(s): hpsa0
eth2 i77 derive     Interrupt 77, for device(s): eth2
eth2-fp-0 i79 derive     Interrupt 79, for device(s): eth2-fp-0
eth2-fp-1 i80 derive     Interrupt 80, for device(s): eth2-fp-1
eth2-fp-2 i81 derive     Interrupt 81, for device(s): eth2-fp-2
eth2-fp-3 i82 derive     Interrupt 82, for device(s): eth2-fp-3
eth2-fp-4 i83 derive     Interrupt 83, for device(s): eth2-fp-4
eth2-fp-5 i84 derive     Interrupt 84, for device(s): eth2-fp-5
eth2-fp-6 i85 derive     Interrupt 85, for device(s): eth2-fp-6
eth2-fp-7 i86 derive     Interrupt 86, for device(s): eth2-fp-7
eth2-fp-8 i87 derive     Interrupt 87, for device(s): eth2-fp-8
eth2-fp-9 i88 derive     Interrupt 88, for device(s): eth2-fp-9
eth2-fp-10 i89 derive     Interrupt 89, for device(s): eth2-fp-10
eth2-fp-11 i90 derive     Interrupt 90, for device(s): eth2-fp-11
eth3 i91 derive     Interrupt 91, for device(s): eth3
eth3-fp-0 i93 derive     Interrupt 93, for device(s): eth3-fp-0
eth3-fp-1 i94 derive     Interrupt 94, for device(s): eth3-fp-1
eth3-fp-2 i95 derive     Interrupt 95, for device(s): eth3-fp-2
eth3-fp-3 i96 derive     Interrupt 96, for device(s): eth3-fp-3
eth3-fp-4 i97 derive     Interrupt 97, for device(s): eth3-fp-4
eth3-fp-5 i98 derive     Interrupt 98, for device(s): eth3-fp-5
eth3-fp-6 i99 derive     Interrupt 99, for device(s): eth3-fp-6
eth3-fp-7 i100 derive     Interrupt 100, for device(s): eth3-fp-7
eth3-fp-8 i101 derive     Interrupt 101, for device(s): eth3-fp-8
eth3-fp-9 i102 derive     Interrupt 102, for device(s): eth3-fp-9
eth3-fp-10 i103 derive     Interrupt 103, for device(s): eth3-fp-10
eth3-fp-11 i104 derive     Interrupt 104, for device(s): eth3-fp-11
ahci i105 derive     Interrupt 105, for device(s): ahci
ioat-msix i115 derive     Interrupt 115, for device(s): ioat-msix
ioat-msix i116 derive     Interrupt 116, for device(s): ioat-msix
ioat-msix i117 derive     Interrupt 117, for device(s): ioat-msix
ioat-msix i118 derive     Interrupt 118, for device(s): ioat-msix
ioat-msix i119 derive     Interrupt 119, for device(s): ioat-msix
ioat-msix i120 derive     Interrupt 120, for device(s): ioat-msix
ioat-msix i121 derive     Interrupt 121, for device(s): ioat-msix
ioat-msix i122 derive     Interrupt 122, for device(s): ioat-msix
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
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
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