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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
1-edge i8042 i1 derive     Interrupt 1, for device(s): 1-edge i8042
3-edge ttyS1 i3 derive     Interrupt 3, for device(s): 3-edge ttyS1
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
12-edge i8042 i12 derive     Interrupt 12, for device(s): 12-edge i8042
16-fasteoi ohci_hcd:usb3, ohci_hcd:usb4 i16 derive     Interrupt 16, for device(s): 16-fasteoi ohci_hcd:usb3, ohci_hcd:usb4
17-fasteoi ehci_hcd:usb1 i17 derive     Interrupt 17, for device(s): 17-fasteoi ehci_hcd:usb1
18-fasteoi ohci_hcd:usb5, ohci_hcd:usb6 i18 derive     Interrupt 18, for device(s): 18-fasteoi ohci_hcd:usb5, ohci_hcd:usb6
19-fasteoi ehci_hcd:usb2 i19 derive     Interrupt 19, for device(s): 19-fasteoi ehci_hcd:usb2
22-fasteoi ahci[0000:00:11.0] i22 derive     Interrupt 22, for device(s): 22-fasteoi ahci[0000:00:11.0]
32768-edge PCIe PME, aerdrv i25 derive     Interrupt 25, for device(s): 32768-edge PCIe PME, aerdrv
49152-edge PCIe PME, aerdrv i26 derive     Interrupt 26, for device(s): 49152-edge PCIe PME, aerdrv
65536-edge PCIe PME, aerdrv i27 derive     Interrupt 27, for device(s): 65536-edge PCIe PME, aerdrv
147456-edge PCIe PME, aerdrv i29 derive     Interrupt 29, for device(s): 147456-edge PCIe PME, aerdrv
16809984-edge PCIe PME, aerdrv i38 derive     Interrupt 38, for device(s): 16809984-edge PCIe PME, aerdrv
16826368-edge PCIe PME, aerdrv i39 derive     Interrupt 39, for device(s): 16826368-edge PCIe PME, aerdrv
16957440-edge PCIe PME, aerdrv i41 derive     Interrupt 41, for device(s): 16957440-edge PCIe PME, aerdrv
2621440-edge megasas0-msix0 i46 derive     Interrupt 46, for device(s): 2621440-edge megasas0-msix0
18350080-edge enp35s0f0-TxRx-0 i48 derive     Interrupt 48, for device(s): 18350080-edge enp35s0f0-TxRx-0
18350081-edge enp35s0f0-TxRx-1 i49 derive     Interrupt 49, for device(s): 18350081-edge enp35s0f0-TxRx-1
18350082-edge enp35s0f0-TxRx-2 i50 derive     Interrupt 50, for device(s): 18350082-edge enp35s0f0-TxRx-2
18350083-edge enp35s0f0-TxRx-3 i51 derive     Interrupt 51, for device(s): 18350083-edge enp35s0f0-TxRx-3
18350084-edge enp35s0f0-TxRx-4 i52 derive     Interrupt 52, for device(s): 18350084-edge enp35s0f0-TxRx-4
18350085-edge enp35s0f0-TxRx-5 i53 derive     Interrupt 53, for device(s): 18350085-edge enp35s0f0-TxRx-5
18350086-edge enp35s0f0-TxRx-6 i54 derive     Interrupt 54, for device(s): 18350086-edge enp35s0f0-TxRx-6
18350087-edge enp35s0f0-TxRx-7 i55 derive     Interrupt 55, for device(s): 18350087-edge enp35s0f0-TxRx-7
18350088-edge enp35s0f0-TxRx-8 i56 derive     Interrupt 56, for device(s): 18350088-edge enp35s0f0-TxRx-8
18350089-edge enp35s0f0-TxRx-9 i57 derive     Interrupt 57, for device(s): 18350089-edge enp35s0f0-TxRx-9
18350090-edge enp35s0f0-TxRx-10 i58 derive     Interrupt 58, for device(s): 18350090-edge enp35s0f0-TxRx-10
18350091-edge enp35s0f0-TxRx-11 i59 derive     Interrupt 59, for device(s): 18350091-edge enp35s0f0-TxRx-11
18350092-edge enp35s0f0-TxRx-12 i60 derive     Interrupt 60, for device(s): 18350092-edge enp35s0f0-TxRx-12
18350093-edge enp35s0f0-TxRx-13 i61 derive     Interrupt 61, for device(s): 18350093-edge enp35s0f0-TxRx-13
18350094-edge enp35s0f0-TxRx-14 i62 derive     Interrupt 62, for device(s): 18350094-edge enp35s0f0-TxRx-14
18350095-edge enp35s0f0-TxRx-15 i63 derive     Interrupt 63, for device(s): 18350095-edge enp35s0f0-TxRx-15
18350096-edge enp35s0f0-TxRx-16 i64 derive     Interrupt 64, for device(s): 18350096-edge enp35s0f0-TxRx-16
18350097-edge enp35s0f0-TxRx-17 i65 derive     Interrupt 65, for device(s): 18350097-edge enp35s0f0-TxRx-17
18350098-edge enp35s0f0-TxRx-18 i66 derive     Interrupt 66, for device(s): 18350098-edge enp35s0f0-TxRx-18
18350099-edge enp35s0f0-TxRx-19 i67 derive     Interrupt 67, for device(s): 18350099-edge enp35s0f0-TxRx-19
18350100-edge enp35s0f0-TxRx-20 i68 derive     Interrupt 68, for device(s): 18350100-edge enp35s0f0-TxRx-20
18350101-edge enp35s0f0-TxRx-21 i69 derive     Interrupt 69, for device(s): 18350101-edge enp35s0f0-TxRx-21
18350102-edge enp35s0f0-TxRx-22 i70 derive     Interrupt 70, for device(s): 18350102-edge enp35s0f0-TxRx-22
18350103-edge enp35s0f0-TxRx-23 i71 derive     Interrupt 71, for device(s): 18350103-edge enp35s0f0-TxRx-23
18350104-edge enp35s0f0-TxRx-24 i72 derive     Interrupt 72, for device(s): 18350104-edge enp35s0f0-TxRx-24
18350105-edge enp35s0f0-TxRx-25 i73 derive     Interrupt 73, for device(s): 18350105-edge enp35s0f0-TxRx-25
18350106-edge enp35s0f0-TxRx-26 i74 derive     Interrupt 74, for device(s): 18350106-edge enp35s0f0-TxRx-26
18350107-edge enp35s0f0-TxRx-27 i75 derive     Interrupt 75, for device(s): 18350107-edge enp35s0f0-TxRx-27
18350108-edge enp35s0f0-TxRx-28 i76 derive     Interrupt 76, for device(s): 18350108-edge enp35s0f0-TxRx-28
18350109-edge enp35s0f0-TxRx-29 i77 derive     Interrupt 77, for device(s): 18350109-edge enp35s0f0-TxRx-29
18350110-edge enp35s0f0-TxRx-30 i78 derive     Interrupt 78, for device(s): 18350110-edge enp35s0f0-TxRx-30
18350111-edge enp35s0f0-TxRx-31 i79 derive     Interrupt 79, for device(s): 18350111-edge enp35s0f0-TxRx-31
18350112-edge enp35s0f0-TxRx-32 i80 derive     Interrupt 80, for device(s): 18350112-edge enp35s0f0-TxRx-32
18350113-edge enp35s0f0-TxRx-33 i81 derive     Interrupt 81, for device(s): 18350113-edge enp35s0f0-TxRx-33
18350114-edge enp35s0f0-TxRx-34 i82 derive     Interrupt 82, for device(s): 18350114-edge enp35s0f0-TxRx-34
18350115-edge enp35s0f0-TxRx-35 i83 derive     Interrupt 83, for device(s): 18350115-edge enp35s0f0-TxRx-35
18350116-edge enp35s0f0-TxRx-36 i84 derive     Interrupt 84, for device(s): 18350116-edge enp35s0f0-TxRx-36
18350117-edge enp35s0f0-TxRx-37 i85 derive     Interrupt 85, for device(s): 18350117-edge enp35s0f0-TxRx-37
18350118-edge enp35s0f0-TxRx-38 i86 derive     Interrupt 86, for device(s): 18350118-edge enp35s0f0-TxRx-38
18350119-edge enp35s0f0-TxRx-39 i87 derive     Interrupt 87, for device(s): 18350119-edge enp35s0f0-TxRx-39
18350120-edge enp35s0f0-TxRx-40 i88 derive     Interrupt 88, for device(s): 18350120-edge enp35s0f0-TxRx-40
18350121-edge enp35s0f0-TxRx-41 i89 derive     Interrupt 89, for device(s): 18350121-edge enp35s0f0-TxRx-41
18350122-edge enp35s0f0-TxRx-42 i90 derive     Interrupt 90, for device(s): 18350122-edge enp35s0f0-TxRx-42
18350123-edge enp35s0f0-TxRx-43 i91 derive     Interrupt 91, for device(s): 18350123-edge enp35s0f0-TxRx-43
18350124-edge enp35s0f0-TxRx-44 i92 derive     Interrupt 92, for device(s): 18350124-edge enp35s0f0-TxRx-44
18350125-edge enp35s0f0-TxRx-45 i93 derive     Interrupt 93, for device(s): 18350125-edge enp35s0f0-TxRx-45
18350126-edge enp35s0f0-TxRx-46 i94 derive     Interrupt 94, for device(s): 18350126-edge enp35s0f0-TxRx-46
18350127-edge enp35s0f0-TxRx-47 i95 derive     Interrupt 95, for device(s): 18350127-edge enp35s0f0-TxRx-47
18350128-edge enp35s0f0 i96 derive     Interrupt 96, for device(s): 18350128-edge enp35s0f0
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