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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
serial i4 derive     Interrupt 4, for device(s): serial
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
pata_atiixp i14 derive     Interrupt 14, for device(s): pata_atiixp
pata_atiixp i15 derive     Interrupt 15, for device(s): pata_atiixp
ohci_hcd:usb3, ohci_hcd:usb4 i16 derive     Interrupt 16, for device(s): ohci_hcd:usb3, ohci_hcd:usb4
ehci_hcd:usb1 i17 derive     Interrupt 17, for device(s): ehci_hcd:usb1
ohci_hcd:usb5, ohci_hcd:usb6, ohci_hcd:usb7 i18 derive     Interrupt 18, for device(s): ohci_hcd:usb5, ohci_hcd:usb6, ohci_hcd:usb7
ehci_hcd:usb2 i19 derive     Interrupt 19, for device(s): ehci_hcd:usb2
ahci i22 derive     Interrupt 22, for device(s): ahci
eth0 i72 derive     Interrupt 72, for device(s): eth0
eth0-TxRx-0 i73 derive     Interrupt 73, for device(s): eth0-TxRx-0
eth0-TxRx-1 i74 derive     Interrupt 74, for device(s): eth0-TxRx-1
eth0-TxRx-2 i75 derive     Interrupt 75, for device(s): eth0-TxRx-2
eth0-TxRx-3 i76 derive     Interrupt 76, for device(s): eth0-TxRx-3
eth0-TxRx-4 i77 derive     Interrupt 77, for device(s): eth0-TxRx-4
eth0-TxRx-5 i78 derive     Interrupt 78, for device(s): eth0-TxRx-5
eth0-TxRx-6 i79 derive     Interrupt 79, for device(s): eth0-TxRx-6
eth0-TxRx-7 i80 derive     Interrupt 80, for device(s): eth0-TxRx-7
eth1 i81 derive     Interrupt 81, for device(s): eth1
eth1-TxRx-0 i82 derive     Interrupt 82, for device(s): eth1-TxRx-0
eth1-TxRx-1 i83 derive     Interrupt 83, for device(s): eth1-TxRx-1
eth1-TxRx-2 i84 derive     Interrupt 84, for device(s): eth1-TxRx-2
eth1-TxRx-3 i85 derive     Interrupt 85, for device(s): eth1-TxRx-3
eth1-TxRx-4 i86 derive     Interrupt 86, for device(s): eth1-TxRx-4
eth1-TxRx-5 i87 derive     Interrupt 87, for device(s): eth1-TxRx-5
eth1-TxRx-6 i88 derive     Interrupt 88, for device(s): eth1-TxRx-6
eth1-TxRx-7 i89 derive     Interrupt 89, for device(s): eth1-TxRx-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
Hypervisor callback interrupts iHYP derive     Interrupt HYP, for device(s): Hypervisor callback interrupts
ERR iERR derive      
MIS iMIS derive