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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-fasteoi snd_hda_intel:card0 i16 derive     Interrupt 16, for device(s): 16-fasteoi snd_hda_intel:card0
17-fasteoi ehci_hcd:usb1 i17 derive     Interrupt 17, for device(s): 17-fasteoi ehci_hcd:usb1
18-fasteoi ohci_hcd:usb10, ohci_hcd:usb12 i18 derive     Interrupt 18, for device(s): 18-fasteoi ohci_hcd:usb10, ohci_hcd:usb12
19-fasteoi ahci[0000:00:11.0] i19 derive     Interrupt 19, for device(s): 19-fasteoi ahci[0000:00:11.0]
20-fasteoi ohci_hcd:usb11 i20 derive     Interrupt 20, for device(s): 20-fasteoi ohci_hcd:usb11
21-fasteoi ehci_hcd:usb2 i21 derive     Interrupt 21, for device(s): 21-fasteoi ehci_hcd:usb2
22-fasteoi ohci_hcd:usb13 i22 derive     Interrupt 22, for device(s): 22-fasteoi ohci_hcd:usb13
23-fasteoi ehci_hcd:usb5 i23 derive     Interrupt 23, for device(s): 23-fasteoi ehci_hcd:usb5
1572864-edge enp3s0 i38 derive     Interrupt 38, for device(s): 1572864-edge enp3s0
2097152-edge xhci_hcd i40 derive     Interrupt 40, for device(s): 2097152-edge xhci_hcd
2097153-edge xhci_hcd i41 derive     Interrupt 41, for device(s): 2097153-edge xhci_hcd
2097154-edge xhci_hcd i42 derive     Interrupt 42, for device(s): 2097154-edge xhci_hcd
2097155-edge xhci_hcd i43 derive     Interrupt 43, for device(s): 2097155-edge xhci_hcd
2097156-edge xhci_hcd i44 derive     Interrupt 44, for device(s): 2097156-edge xhci_hcd
2097157-edge xhci_hcd i45 derive     Interrupt 45, for device(s): 2097157-edge xhci_hcd
2097158-edge xhci_hcd i46 derive     Interrupt 46, for device(s): 2097158-edge xhci_hcd
2097159-edge xhci_hcd i47 derive     Interrupt 47, for device(s): 2097159-edge xhci_hcd
1048576-edge ahci[0000:02:00.0] i49 derive     Interrupt 49, for device(s): 1048576-edge ahci[0000:02:00.0]
3670016-edge ahci[0000:07:00.0] i51 derive     Interrupt 51, for device(s): 3670016-edge ahci[0000:07:00.0]
2621440-edge xhci_hcd i53 derive     Interrupt 53, for device(s): 2621440-edge xhci_hcd
2621441-edge xhci_hcd i54 derive     Interrupt 54, for device(s): 2621441-edge xhci_hcd
2621442-edge xhci_hcd i55 derive     Interrupt 55, for device(s): 2621442-edge xhci_hcd
2621443-edge xhci_hcd i56 derive     Interrupt 56, for device(s): 2621443-edge xhci_hcd
2621444-edge xhci_hcd i57 derive     Interrupt 57, for device(s): 2621444-edge xhci_hcd
2621445-edge xhci_hcd i58 derive     Interrupt 58, for device(s): 2621445-edge xhci_hcd
2621446-edge xhci_hcd i59 derive     Interrupt 59, for device(s): 2621446-edge xhci_hcd
2621447-edge xhci_hcd i60 derive     Interrupt 60, for device(s): 2621447-edge xhci_hcd
3145728-edge xhci_hcd i62 derive     Interrupt 62, for device(s): 3145728-edge xhci_hcd
3145729-edge xhci_hcd i63 derive     Interrupt 63, for device(s): 3145729-edge xhci_hcd
3145730-edge xhci_hcd i64 derive     Interrupt 64, for device(s): 3145730-edge xhci_hcd
3145731-edge xhci_hcd i65 derive     Interrupt 65, for device(s): 3145731-edge xhci_hcd
3145732-edge xhci_hcd i66 derive     Interrupt 66, for device(s): 3145732-edge xhci_hcd
3145733-edge xhci_hcd i67 derive     Interrupt 67, for device(s): 3145733-edge xhci_hcd
3145734-edge xhci_hcd i68 derive     Interrupt 68, for device(s): 3145734-edge xhci_hcd
3145735-edge xhci_hcd i69 derive     Interrupt 69, for device(s): 3145735-edge xhci_hcd
4720640-edge snd_hda_intel:card1 i71 derive     Interrupt 71, for device(s): 4720640-edge snd_hda_intel:card1
4718592-edge radeon i73 derive     Interrupt 73, for device(s): 4718592-edge radeon
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