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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
4-edge i4 derive     Interrupt 4, for device(s): 4-edge
7-edge parport0 i7 derive     Interrupt 7, for device(s): 7-edge parport0
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 uhci_hcd:usb3, ioc0 i16 derive     Interrupt 16, for device(s): 16-fasteoi uhci_hcd:usb3, ioc0
17-fasteoi uhci_hcd:usb4, uhci_hcd:usb7 i17 derive     Interrupt 17, for device(s): 17-fasteoi uhci_hcd:usb4, uhci_hcd:usb7
18-fasteoi uhci_hcd:usb8, firewire_ohci i18 derive     Interrupt 18, for device(s): 18-fasteoi uhci_hcd:usb8, firewire_ohci
22-fasteoi ehci_hcd:usb1, uhci_hcd:usb5 i22 derive     Interrupt 22, for device(s): 22-fasteoi ehci_hcd:usb1, uhci_hcd:usb5
23-fasteoi ehci_hcd:usb2, uhci_hcd:usb6 i23 derive     Interrupt 23, for device(s): 23-fasteoi ehci_hcd:usb2, uhci_hcd:usb6
4-fasteoi enp2s0f0 i32 derive     Interrupt 32, for device(s): 4-fasteoi enp2s0f0
10-fasteoi pata_marvell i33 derive     Interrupt 33, for device(s): 10-fasteoi pata_marvell
512000-edge ahci0 i34 derive     Interrupt 34, for device(s): 512000-edge ahci0
512001-edge ahci1 i35 derive     Interrupt 35, for device(s): 512001-edge ahci1
512002-edge ahci2 i36 derive     Interrupt 36, for device(s): 512002-edge ahci2
512005-edge ahci5 i39 derive     Interrupt 39, for device(s): 512005-edge ahci5
18874368-edge megasas2-msix0 i51 derive     Interrupt 51, for device(s): 18874368-edge megasas2-msix0
17825792-edge ahci[0000:22:00.0] i53 derive     Interrupt 53, for device(s): 17825792-edge ahci[0000:22:00.0]
18350080-edge ahci[0000:23:00.0] i55 derive     Interrupt 55, for device(s): 18350080-edge ahci[0000:23:00.0]
16-fasteoi enp2s0f1 i56 derive     Interrupt 56, for device(s): 16-fasteoi enp2s0f1
442368-edge snd_hda_intel:card0 i57 derive     Interrupt 57, for device(s): 442368-edge snd_hda_intel:card0
13-fasteoi snd_hda_intel:card1 i58 derive     Interrupt 58, for device(s): 13-fasteoi snd_hda_intel:card1
3145728-edge enp6s0 i59 derive     Interrupt 59, for device(s): 3145728-edge enp6s0
0-edge dmar0 i72 derive     Interrupt 72, for device(s): 0-edge dmar0
1-edge dmar1 i73 derive     Interrupt 73, for device(s): 1-edge dmar1
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