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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
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
ipmi_si i10 derive     Interrupt 10, for device(s): ipmi_si
i801_smbus i16 derive     Interrupt 16, for device(s): i801_smbus
PCIe PME, pciehp i24 derive     Interrupt 24, for device(s): PCIe PME, pciehp
PCIe PME i25 derive     Interrupt 25, for device(s): PCIe PME
PCIe PME i27 derive     Interrupt 27, for device(s): PCIe PME
PCIe PME i28 derive     Interrupt 28, for device(s): PCIe PME
PCIe PME i30 derive     Interrupt 30, for device(s): PCIe PME
PCIe PME i31 derive     Interrupt 31, for device(s): PCIe PME
xhci_hcd i32 derive     Interrupt 32, for device(s): xhci_hcd
megasas0-msix0 i39 derive     Interrupt 39, for device(s): megasas0-msix0
megasas0-msix1 i40 derive     Interrupt 40, for device(s): megasas0-msix1
megasas0-msix2 i41 derive     Interrupt 41, for device(s): megasas0-msix2
megasas0-msix3 i42 derive     Interrupt 42, for device(s): megasas0-msix3
megasas0-msix4 i43 derive     Interrupt 43, for device(s): megasas0-msix4
megasas0-msix5 i44 derive     Interrupt 44, for device(s): megasas0-msix5
megasas0-msix6 i45 derive     Interrupt 45, for device(s): megasas0-msix6
megasas0-msix7 i46 derive     Interrupt 46, for device(s): megasas0-msix7
megasas0-msix8 i47 derive     Interrupt 47, for device(s): megasas0-msix8
0000:00:11.5 i48 derive     Interrupt 48, for device(s): 0000:00:11.5
0000:00:17.0 i49 derive     Interrupt 49, for device(s): 0000:00:17.0
i40e-0000:65:00.0:misc i50 derive     Interrupt 50, for device(s): i40e-0000:65:00.0:misc
i40e-p1p1-TxRx-0 i51 derive     Interrupt 51, for device(s): i40e-p1p1-TxRx-0
i40e-p1p1-TxRx-1 i52 derive     Interrupt 52, for device(s): i40e-p1p1-TxRx-1
i40e-p1p1-TxRx-2 i53 derive     Interrupt 53, for device(s): i40e-p1p1-TxRx-2
i40e-p1p1-TxRx-3 i54 derive     Interrupt 54, for device(s): i40e-p1p1-TxRx-3
i40e-p1p1-TxRx-4 i55 derive     Interrupt 55, for device(s): i40e-p1p1-TxRx-4
dmar2 i56 derive     Interrupt 56, for device(s): dmar2
dmar1 i57 derive     Interrupt 57, for device(s): dmar1
dmar0 i58 derive     Interrupt 58, for device(s): dmar0
dmar3 i59 derive     Interrupt 59, for device(s): dmar3
i40e-p1p1-TxRx-5 i60 derive     Interrupt 60, for device(s): i40e-p1p1-TxRx-5
i40e-p1p1-TxRx-6 i61 derive     Interrupt 61, for device(s): i40e-p1p1-TxRx-6
i40e-p1p1-TxRx-7 i62 derive     Interrupt 62, for device(s): i40e-p1p1-TxRx-7
i40e-0000:65:00.0:fdir-TxRx-0 i63 derive     Interrupt 63, for device(s): i40e-0000:65:00.0:fdir-TxRx-0
i40e-0000:65:00.1:misc i72 derive     Interrupt 72, for device(s): i40e-0000:65:00.1:misc
i40e-p1p2-TxRx-0 i73 derive     Interrupt 73, for device(s): i40e-p1p2-TxRx-0
i40e-p1p2-TxRx-1 i74 derive     Interrupt 74, for device(s): i40e-p1p2-TxRx-1
i40e-p1p2-TxRx-2 i75 derive     Interrupt 75, for device(s): i40e-p1p2-TxRx-2
i40e-p1p2-TxRx-3 i76 derive     Interrupt 76, for device(s): i40e-p1p2-TxRx-3
i40e-p1p2-TxRx-4 i77 derive     Interrupt 77, for device(s): i40e-p1p2-TxRx-4
i40e-p1p2-TxRx-5 i78 derive     Interrupt 78, for device(s): i40e-p1p2-TxRx-5
i40e-p1p2-TxRx-6 i79 derive     Interrupt 79, for device(s): i40e-p1p2-TxRx-6
i40e-p1p2-TxRx-7 i80 derive     Interrupt 80, for device(s): i40e-p1p2-TxRx-7
i40e-0000:65:00.1:fdir-TxRx-0 i81 derive     Interrupt 81, for device(s): i40e-0000:65:00.1:fdir-TxRx-0
mei_me i90 derive     Interrupt 90, for device(s): mei_me
em1-tx-0 i91 derive     Interrupt 91, for device(s): em1-tx-0
em1-rx-1 i92 derive     Interrupt 92, for device(s): em1-rx-1
em1-rx-2 i93 derive     Interrupt 93, for device(s): em1-rx-2
em1-rx-3 i94 derive     Interrupt 94, for device(s): em1-rx-3
em1-rx-4 i95 derive     Interrupt 95, for device(s): em1-rx-4
em2-tx-0 i96 derive     Interrupt 96, for device(s): em2-tx-0
em2-rx-1 i97 derive     Interrupt 97, for device(s): em2-rx-1
em2-rx-2 i98 derive     Interrupt 98, for device(s): em2-rx-2
em2-rx-3 i99 derive     Interrupt 99, for device(s): em2-rx-3
em2-rx-4 i100 derive     Interrupt 100, for device(s): em2-rx-4
em3-tx-0 i101 derive     Interrupt 101, for device(s): em3-tx-0
em3-rx-1 i102 derive     Interrupt 102, for device(s): em3-rx-1
em3-rx-2 i103 derive     Interrupt 103, for device(s): em3-rx-2
em3-rx-3 i104 derive     Interrupt 104, for device(s): em3-rx-3
em3-rx-4 i105 derive     Interrupt 105, for device(s): em3-rx-4
em4-tx-0 i106 derive     Interrupt 106, for device(s): em4-tx-0
em4-rx-1 i107 derive     Interrupt 107, for device(s): em4-rx-1
em4-rx-2 i108 derive     Interrupt 108, for device(s): em4-rx-2
em4-rx-3 i109 derive     Interrupt 109, for device(s): em4-rx-3
em4-rx-4 i110 derive     Interrupt 110, for device(s): em4-rx-4
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