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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:usb4 i21 derive     Interrupt 21, for device(s): 21-fasteoi ehci_hcd:usb4
22-fasteoi ohci_hcd:usb13 i22 derive     Interrupt 22, for device(s): 22-fasteoi ohci_hcd:usb13
23-fasteoi ehci_hcd:usb7 i23 derive     Interrupt 23, for device(s): 23-fasteoi ehci_hcd:usb7
0-fasteoi sata_sil24[0000:04:00.0] i27 derive     Interrupt 27, for device(s): 0-fasteoi sata_sil24[0000:04:00.0]
6291456-edge enp12s0 i28 derive     Interrupt 28, for device(s): 6291456-edge enp12s0
3670016-edge xhci_hcd i30 derive     Interrupt 30, for device(s): 3670016-edge xhci_hcd
3670017-edge xhci_hcd i31 derive     Interrupt 31, for device(s): 3670017-edge xhci_hcd
3670018-edge xhci_hcd i32 derive     Interrupt 32, for device(s): 3670018-edge xhci_hcd
3670019-edge xhci_hcd i33 derive     Interrupt 33, for device(s): 3670019-edge xhci_hcd
3670020-edge xhci_hcd i34 derive     Interrupt 34, for device(s): 3670020-edge xhci_hcd
23-fasteoi sata_sil24[0000:08:00.0] i35 derive     Interrupt 35, for device(s): 23-fasteoi sata_sil24[0000:08:00.0]
2621440-edge ahci[0000:05:00.0] i37 derive     Interrupt 37, for device(s): 2621440-edge ahci[0000:05:00.0]
3145728-edge ahci[0000:06:00.0] i39 derive     Interrupt 39, for device(s): 3145728-edge ahci[0000:06:00.0]
8-fasteoi sata_sil24[0000:09:00.0] i40 derive     Interrupt 40, for device(s): 8-fasteoi sata_sil24[0000:09:00.0]
6815744-edge xhci_hcd i41 derive     Interrupt 41, for device(s): 6815744-edge xhci_hcd
6815745-edge xhci_hcd i42 derive     Interrupt 42, for device(s): 6815745-edge xhci_hcd
6815746-edge xhci_hcd i43 derive     Interrupt 43, for device(s): 6815746-edge xhci_hcd
6815747-edge xhci_hcd i44 derive     Interrupt 44, for device(s): 6815747-edge xhci_hcd
6815748-edge xhci_hcd i45 derive     Interrupt 45, for device(s): 6815748-edge xhci_hcd
7340032-edge xhci_hcd i46 derive     Interrupt 46, for device(s): 7340032-edge xhci_hcd
7340033-edge xhci_hcd i47 derive     Interrupt 47, for device(s): 7340033-edge xhci_hcd
7340034-edge xhci_hcd i48 derive     Interrupt 48, for device(s): 7340034-edge xhci_hcd
7340035-edge xhci_hcd i49 derive     Interrupt 49, for device(s): 7340035-edge xhci_hcd
7340036-edge xhci_hcd i50 derive     Interrupt 50, for device(s): 7340036-edge xhci_hcd
1572864-edge radeon i51 derive     Interrupt 51, for device(s): 1572864-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
Hypervisor callback interrupts iHYP derive     Interrupt HYP, for device(s): Hypervisor callback interrupts
Hyper-V reenlightenment interrupts iHRE derive     Interrupt HRE, for device(s): Hyper-V reenlightenment interrupts
Hyper-V stimer0 interrupts iHVS derive     Interrupt HVS, for device(s): Hyper-V stimer0 interrupts
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