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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
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
14-edge ide0 i14 derive     Interrupt 14, for device(s): 14-edge ide0
15-edge ide1 i15 derive     Interrupt 15, for device(s): 15-edge ide1
18-fasteoi ehci_hcd:usb1, ehci_hcd:usb2 i18 derive     Interrupt 18, for device(s): 18-fasteoi ehci_hcd:usb1, ehci_hcd:usb2
19-fasteoi xhci-hcd:usb3 i19 derive     Interrupt 19, for device(s): 19-fasteoi xhci-hcd:usb3
0-edge dmar0 i24 derive     Interrupt 24, for device(s): 0-edge dmar0
458752-edge pciehp i31 derive     Interrupt 31, for device(s): 458752-edge pciehp
65536-edge ioat-msix i34 derive     Interrupt 34, for device(s): 65536-edge ioat-msix
67584-edge ioat-msix i36 derive     Interrupt 36, for device(s): 67584-edge ioat-msix
69632-edge ioat-msix i37 derive     Interrupt 37, for device(s): 69632-edge ioat-msix
71680-edge ioat-msix i38 derive     Interrupt 38, for device(s): 71680-edge ioat-msix
73728-edge ioat-msix i39 derive     Interrupt 39, for device(s): 73728-edge ioat-msix
75776-edge ioat-msix i40 derive     Interrupt 40, for device(s): 75776-edge ioat-msix
77824-edge ioat-msix i41 derive     Interrupt 41, for device(s): 77824-edge ioat-msix
79872-edge ioat-msix i42 derive     Interrupt 42, for device(s): 79872-edge ioat-msix
286720-edge ahci[0000:00:11.4] i43 derive     Interrupt 43, for device(s): 286720-edge ahci[0000:00:11.4]
512000-edge ahci[0000:00:1f.2] i44 derive     Interrupt 44, for device(s): 512000-edge ahci[0000:00:1f.2]
2097152-edge eth0 i46 derive     Interrupt 46, for device(s): 2097152-edge eth0
2097153-edge eth0-TxRx-0 i47 derive     Interrupt 47, for device(s): 2097153-edge eth0-TxRx-0
2097154-edge eth0-TxRx-1 i48 derive     Interrupt 48, for device(s): 2097154-edge eth0-TxRx-1
2097155-edge eth0-TxRx-2 i49 derive     Interrupt 49, for device(s): 2097155-edge eth0-TxRx-2
2097156-edge eth0-TxRx-3 i50 derive     Interrupt 50, for device(s): 2097156-edge eth0-TxRx-3
2097157-edge eth0-TxRx-4 i51 derive     Interrupt 51, for device(s): 2097157-edge eth0-TxRx-4
2097158-edge eth0-TxRx-5 i52 derive     Interrupt 52, for device(s): 2097158-edge eth0-TxRx-5
2097159-edge eth0-TxRx-6 i53 derive     Interrupt 53, for device(s): 2097159-edge eth0-TxRx-6
2097160-edge eth0-TxRx-7 i54 derive     Interrupt 54, for device(s): 2097160-edge eth0-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
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
Posted-interrupt wakeup event iPIW derive     Interrupt PIW, for device(s): Posted-interrupt wakeup event