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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
megasas i16 derive     Interrupt 16, for device(s): megasas
uhci_hcd:usb3 i17 derive     Interrupt 17, for device(s): uhci_hcd:usb3
uhci_hcd:usb4 i18 derive     Interrupt 18, for device(s): uhci_hcd:usb4
ehci_hcd:usb1 i19 derive     Interrupt 19, for device(s): ehci_hcd:usb1
uhci_hcd:usb6 i20 derive     Interrupt 20, for device(s): uhci_hcd:usb6
ehci_hcd:usb2, uhci_hcd:usb5 i21 derive     Interrupt 21, for device(s): ehci_hcd:usb2, uhci_hcd:usb5
ata_piix i23 derive     Interrupt 23, for device(s): ata_piix
PCIe PME i72 derive     Interrupt 72, for device(s): PCIe PME
PCIe PME i73 derive     Interrupt 73, for device(s): PCIe PME
PCIe PME i74 derive     Interrupt 74, for device(s): PCIe PME
PCIe PME i75 derive     Interrupt 75, for device(s): PCIe PME
PCIe PME i76 derive     Interrupt 76, for device(s): PCIe PME
ioat-msix i77 derive     Interrupt 77, for device(s): ioat-msix
ioat-msix i78 derive     Interrupt 78, for device(s): ioat-msix
ioat-msix i79 derive     Interrupt 79, for device(s): ioat-msix
ioat-msix i80 derive     Interrupt 80, for device(s): ioat-msix
ioat-msix i81 derive     Interrupt 81, for device(s): ioat-msix
ioat-msix i82 derive     Interrupt 82, for device(s): ioat-msix
ioat-msix i83 derive     Interrupt 83, for device(s): ioat-msix
ioat-msix i84 derive     Interrupt 84, for device(s): ioat-msix
eth0-0 i85 derive     Interrupt 85, for device(s): eth0-0
eth0-1 i86 derive     Interrupt 86, for device(s): eth0-1
eth0-2 i87 derive     Interrupt 87, for device(s): eth0-2
eth0-3 i88 derive     Interrupt 88, for device(s): eth0-3
eth0-4 i89 derive     Interrupt 89, for device(s): eth0-4
eth0-5 i90 derive     Interrupt 90, for device(s): eth0-5
eth0-6 i91 derive     Interrupt 91, for device(s): eth0-6
eth0-7 i92 derive     Interrupt 92, for device(s): eth0-7
eth1-0 i94 derive     Interrupt 94, for device(s): eth1-0
eth1-1 i95 derive     Interrupt 95, for device(s): eth1-1
eth1-2 i96 derive     Interrupt 96, for device(s): eth1-2
eth1-3 i97 derive     Interrupt 97, for device(s): eth1-3
eth1-4 i98 derive     Interrupt 98, for device(s): eth1-4
eth1-5 i99 derive     Interrupt 99, for device(s): eth1-5
eth1-6 i100 derive     Interrupt 100, for device(s): eth1-6
eth1-7 i101 derive     Interrupt 101, for device(s): eth1-7
eth2-0 i103 derive     Interrupt 103, for device(s): eth2-0
eth2-1 i104 derive     Interrupt 104, for device(s): eth2-1
eth2-2 i105 derive     Interrupt 105, for device(s): eth2-2
eth2-3 i106 derive     Interrupt 106, for device(s): eth2-3
eth2-4 i107 derive     Interrupt 107, for device(s): eth2-4
eth2-5 i108 derive     Interrupt 108, for device(s): eth2-5
eth2-6 i109 derive     Interrupt 109, for device(s): eth2-6
eth2-7 i110 derive     Interrupt 110, for device(s): eth2-7
eth3-0 i112 derive     Interrupt 112, for device(s): eth3-0
eth3-1 i113 derive     Interrupt 113, for device(s): eth3-1
eth3-2 i114 derive     Interrupt 114, for device(s): eth3-2
eth3-3 i115 derive     Interrupt 115, for device(s): eth3-3
eth3-4 i116 derive     Interrupt 116, for device(s): eth3-4
eth3-5 i117 derive     Interrupt 117, for device(s): eth3-5
eth3-6 i118 derive     Interrupt 118, for device(s): eth3-6
eth3-7 i119 derive     Interrupt 119, for device(s): eth3-7
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
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