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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
18-fasteoi i801_smbus i18 derive     Interrupt 18, for device(s): 18-fasteoi i801_smbus
23-fasteoi ehci_hcd:usb1, ehci_hcd:usb4 i23 derive     Interrupt 23, for device(s): 23-fasteoi ehci_hcd:usb1, ehci_hcd:usb4
16384-edge PCIe PME i24 derive     Interrupt 24, for device(s): 16384-edge PCIe PME
458752-edge PCIe PME i25 derive     Interrupt 25, for device(s): 458752-edge PCIe PME
466944-edge PCIe PME i26 derive     Interrupt 26, for device(s): 466944-edge PCIe PME
468992-edge PCIe PME i27 derive     Interrupt 27, for device(s): 468992-edge PCIe PME
471040-edge PCIe PME i28 derive     Interrupt 28, for device(s): 471040-edge PCIe PME
473088-edge PCIe PME i29 derive     Interrupt 29, for device(s): 473088-edge PCIe PME
2097152-edge xhci_hcd i30 derive     Interrupt 30, for device(s): 2097152-edge xhci_hcd
2097153-edge xhci_hcd i31 derive     Interrupt 31, for device(s): 2097153-edge xhci_hcd
2097154-edge xhci_hcd i32 derive     Interrupt 32, for device(s): 2097154-edge xhci_hcd
2097155-edge xhci_hcd i33 derive     Interrupt 33, for device(s): 2097155-edge xhci_hcd
2097156-edge xhci_hcd i34 derive     Interrupt 34, for device(s): 2097156-edge xhci_hcd
512000-edge ahci[0000:00:1f.2] i35 derive     Interrupt 35, for device(s): 512000-edge ahci[0000:00:1f.2]
3145728-edge xhci_hcd i36 derive     Interrupt 36, for device(s): 3145728-edge xhci_hcd
3145729-edge xhci_hcd i37 derive     Interrupt 37, for device(s): 3145729-edge xhci_hcd
3145730-edge xhci_hcd i38 derive     Interrupt 38, for device(s): 3145730-edge xhci_hcd
3145731-edge xhci_hcd i39 derive     Interrupt 39, for device(s): 3145731-edge xhci_hcd
3145732-edge xhci_hcd i40 derive     Interrupt 40, for device(s): 3145732-edge xhci_hcd
2621440-edge enp5s0 i41 derive     Interrupt 41, for device(s): 2621440-edge enp5s0
360448-edge mei_me i42 derive     Interrupt 42, for device(s): 360448-edge mei_me
32768-edge i915 i43 derive     Interrupt 43, for device(s): 32768-edge i915
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