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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
i8042 i1 derive     Interrupt 1, for device(s): i8042
rtc0 i8 derive     Interrupt 8, for device(s): rtc0
acpi i9 derive     Interrupt 9, for device(s): acpi
i8042 i12 derive     Interrupt 12, for device(s): i8042
pata_atiixp i14 derive     Interrupt 14, for device(s): pata_atiixp
pata_atiixp i15 derive     Interrupt 15, for device(s): pata_atiixp
0000:00:11.0, radeon i16 derive     Interrupt 16, for device(s): 0000:00:11.0, radeon
ehci_hcd:usb2, ohci_hcd:usb3, ohci_hcd:usb4 i22 derive     Interrupt 22, for device(s): ehci_hcd:usb2, ohci_hcd:usb3, ohci_hcd:usb4
ehci_hcd:usb1, ohci_hcd:usb5, ohci_hcd:usb6 i23 derive     Interrupt 23, for device(s): ehci_hcd:usb1, ohci_hcd:usb5, ohci_hcd:usb6
uhci_hcd:usb7, hpilo i27 derive     Interrupt 27, for device(s): uhci_hcd:usb7, hpilo
hpsa0-msix0 i28 derive     Interrupt 28, for device(s): hpsa0-msix0
hpsa0-msix1 i29 derive     Interrupt 29, for device(s): hpsa0-msix1
hpsa0-msix2 i30 derive     Interrupt 30, for device(s): hpsa0-msix2
hpsa0-msix3 i31 derive     Interrupt 31, for device(s): hpsa0-msix3
hpsa0-msix4 i32 derive     Interrupt 32, for device(s): hpsa0-msix4
hpsa0-msix5 i33 derive     Interrupt 33, for device(s): hpsa0-msix5
hpsa0-msix6 i34 derive     Interrupt 34, for device(s): hpsa0-msix6
hpsa0-msix7 i35 derive     Interrupt 35, for device(s): hpsa0-msix7
hpsa0-msix8 i36 derive     Interrupt 36, for device(s): hpsa0-msix8
hpsa0-msix9 i37 derive     Interrupt 37, for device(s): hpsa0-msix9
hpsa0-msix10 i38 derive     Interrupt 38, for device(s): hpsa0-msix10
hpsa0-msix11 i39 derive     Interrupt 39, for device(s): hpsa0-msix11
hpsa0-msix12 i40 derive     Interrupt 40, for device(s): hpsa0-msix12
hpsa0-msix13 i41 derive     Interrupt 41, for device(s): hpsa0-msix13
hpsa0-msix14 i42 derive     Interrupt 42, for device(s): hpsa0-msix14
hpsa0-msix15 i43 derive     Interrupt 43, for device(s): hpsa0-msix15
hpsa1-msix0 i45 derive     Interrupt 45, for device(s): hpsa1-msix0
hpsa1-msix1 i46 derive     Interrupt 46, for device(s): hpsa1-msix1
hpsa1-msix2 i47 derive     Interrupt 47, for device(s): hpsa1-msix2
hpsa1-msix3 i48 derive     Interrupt 48, for device(s): hpsa1-msix3
hpsa1-msix4 i49 derive     Interrupt 49, for device(s): hpsa1-msix4
hpsa1-msix5 i50 derive     Interrupt 50, for device(s): hpsa1-msix5
hpsa1-msix6 i51 derive     Interrupt 51, for device(s): hpsa1-msix6
hpsa1-msix7 i52 derive     Interrupt 52, for device(s): hpsa1-msix7
hpsa1-msix8 i53 derive     Interrupt 53, for device(s): hpsa1-msix8
hpsa1-msix9 i54 derive     Interrupt 54, for device(s): hpsa1-msix9
hpsa1-msix10 i55 derive     Interrupt 55, for device(s): hpsa1-msix10
hpsa1-msix11 i56 derive     Interrupt 56, for device(s): hpsa1-msix11
hpsa1-msix12 i57 derive     Interrupt 57, for device(s): hpsa1-msix12
hpsa1-msix13 i58 derive     Interrupt 58, for device(s): hpsa1-msix13
hpsa1-msix14 i59 derive     Interrupt 59, for device(s): hpsa1-msix14
hpsa1-msix15 i60 derive     Interrupt 60, for device(s): hpsa1-msix15
enp4s0f0[0] i61 derive     Interrupt 61, for device(s): enp4s0f0[0]
enp4s0f0[1] i62 derive     Interrupt 62, for device(s): enp4s0f0[1]
enp4s0f0[2] i63 derive     Interrupt 63, for device(s): enp4s0f0[2]
enp4s0f0[3] i64 derive     Interrupt 64, for device(s): enp4s0f0[3]
enp4s0f1[0] i65 derive     Interrupt 65, for device(s): enp4s0f1[0]
enp4s0f1[1] i66 derive     Interrupt 66, for device(s): enp4s0f1[1]
enp4s0f1[2] i67 derive     Interrupt 67, for device(s): enp4s0f1[2]
enp4s0f1[3] i68 derive     Interrupt 68, for device(s): enp4s0f1[3]
enp4s0f2[0] i69 derive     Interrupt 69, for device(s): enp4s0f2[0]
enp4s0f2[1] i70 derive     Interrupt 70, for device(s): enp4s0f2[1]
enp4s0f2[2] i71 derive     Interrupt 71, for device(s): enp4s0f2[2]
enp4s0f2[3] i72 derive     Interrupt 72, for device(s): enp4s0f2[3]
enp4s0f3[0] i73 derive     Interrupt 73, for device(s): enp4s0f3[0]
enp4s0f3[1] i74 derive     Interrupt 74, for device(s): enp4s0f3[1]
enp4s0f3[2] i75 derive     Interrupt 75, for device(s): enp4s0f3[2]
enp4s0f3[3] i76 derive     Interrupt 76, for device(s): enp4s0f3[3]
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