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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
parport0	i5	derive			Interrupt 5, for device(s): parport0
7	i7	derive
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
dmar0	i120	derive			Interrupt 120, for device(s): dmar0
dmar1	i121	derive			Interrupt 121, for device(s): dmar1
hpet2	i122	derive			Interrupt 122, for device(s): hpet2
hpet3	i123	derive			Interrupt 123, for device(s): hpet3
hpet4	i124	derive			Interrupt 124, for device(s): hpet4
hpet5	i125	derive			Interrupt 125, for device(s): hpet5
hpet6	i126	derive			Interrupt 126, for device(s): hpet6
xhci_hcd	i127	derive			Interrupt 127, for device(s): xhci_hcd
ahci	i128	derive			Interrupt 128, for device(s): ahci
eth0	i129	derive			Interrupt 129, for device(s): eth0
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
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
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