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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
16 i16 derive     Interrupt 16, for device(s): 16-fasteoi ehci_hcd:usb4, uhci_hcd:usb6, uhci_hcd:usb7, uhci_hcd:usb8
18-fasteoi i801_smbus i18 derive     Interrupt 18, for device(s): 18-fasteoi i801_smbus
19 i19 derive     Interrupt 19, for device(s): 19-fasteoi uhci_hcd:usb1, ehci_hcd:usb2, uhci_hcd:usb3, uhci_hcd:usb5
16384-edge PCIe PME, aerdrv i25 derive     Interrupt 25, for device(s): 16384-edge PCIe PME, aerdrv
49152-edge PCIe PME, aerdrv i27 derive     Interrupt 27, for device(s): 49152-edge PCIe PME, aerdrv
98304-edge PCIe PME, aerdrv i29 derive     Interrupt 29, for device(s): 98304-edge PCIe PME, aerdrv
6-fasteoi ioc0 i30 derive     Interrupt 30, for device(s): 6-fasteoi ioc0
114688-edge PCIe PME, aerdrv i31 derive     Interrupt 31, for device(s): 114688-edge PCIe PME, aerdrv
147456-edge PCIe PME, aerdrv i33 derive     Interrupt 33, for device(s): 147456-edge PCIe PME, aerdrv
163840-edge PCIe PME, aerdrv i35 derive     Interrupt 35, for device(s): 163840-edge PCIe PME, aerdrv
458752-edge PCIe PME, pciehp i36 derive     Interrupt 36, for device(s): 458752-edge PCIe PME, pciehp
466944-edge PCIe PME, pciehp i37 derive     Interrupt 37, for device(s): 466944-edge PCIe PME, pciehp
468992-edge PCIe PME, pciehp i38 derive     Interrupt 38, for device(s): 468992-edge PCIe PME, pciehp
524288-edge enp1s0f0 i39 derive     Interrupt 39, for device(s): 524288-edge enp1s0f0
524289-edge enp1s0f0-rx-0 i40 derive     Interrupt 40, for device(s): 524289-edge enp1s0f0-rx-0
524290-edge enp1s0f0-rx-1 i41 derive     Interrupt 41, for device(s): 524290-edge enp1s0f0-rx-1
524291-edge enp1s0f0-rx-2 i42 derive     Interrupt 42, for device(s): 524291-edge enp1s0f0-rx-2
524292-edge enp1s0f0-rx-3 i43 derive     Interrupt 43, for device(s): 524292-edge enp1s0f0-rx-3
524293-edge enp1s0f0-tx-0 i44 derive     Interrupt 44, for device(s): 524293-edge enp1s0f0-tx-0
524294-edge enp1s0f0-tx-1 i45 derive     Interrupt 45, for device(s): 524294-edge enp1s0f0-tx-1
524295-edge enp1s0f0-tx-2 i46 derive     Interrupt 46, for device(s): 524295-edge enp1s0f0-tx-2
524296-edge enp1s0f0-tx-3 i47 derive     Interrupt 47, for device(s): 524296-edge enp1s0f0-tx-3
526336-edge enp1s0f1 i49 derive     Interrupt 49, for device(s): 526336-edge enp1s0f1
526337-edge enp1s0f1-rx-0 i50 derive     Interrupt 50, for device(s): 526337-edge enp1s0f1-rx-0
526338-edge enp1s0f1-rx-1 i51 derive     Interrupt 51, for device(s): 526338-edge enp1s0f1-rx-1
526339-edge enp1s0f1-rx-2 i52 derive     Interrupt 52, for device(s): 526339-edge enp1s0f1-rx-2
526340-edge enp1s0f1-rx-3 i53 derive     Interrupt 53, for device(s): 526340-edge enp1s0f1-rx-3
526341-edge enp1s0f1-tx-0 i54 derive     Interrupt 54, for device(s): 526341-edge enp1s0f1-tx-0
526342-edge enp1s0f1-tx-1 i55 derive     Interrupt 55, for device(s): 526342-edge enp1s0f1-tx-1
526343-edge enp1s0f1-tx-2 i56 derive     Interrupt 56, for device(s): 526343-edge enp1s0f1-tx-2
526344-edge enp1s0f1-tx-3 i57 derive     Interrupt 57, for device(s): 526344-edge enp1s0f1-tx-3
360448-edge ioat-msix i78 derive     Interrupt 78, for device(s): 360448-edge ioat-msix
362496-edge ioat-msix i80 derive     Interrupt 80, for device(s): 362496-edge ioat-msix
364544-edge ioat-msix i82 derive     Interrupt 82, for device(s): 364544-edge ioat-msix
366592-edge ioat-msix i84 derive     Interrupt 84, for device(s): 366592-edge ioat-msix
368640-edge ioat-msix i85 derive     Interrupt 85, for device(s): 368640-edge ioat-msix
370688-edge ioat-msix i86 derive     Interrupt 86, for device(s): 370688-edge ioat-msix
372736-edge ioat-msix i87 derive     Interrupt 87, for device(s): 372736-edge ioat-msix
374784-edge ioat-msix i88 derive     Interrupt 88, for device(s): 374784-edge 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
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
Nested posted-interrupt event iNPI derive     Interrupt NPI, for device(s): Nested posted-interrupt event
Posted-interrupt wakeup event iPIW derive     Interrupt PIW, for device(s): Posted-interrupt wakeup event