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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
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 ehci_hcd:usb1, uhci_hcd:usb2	i16	derive			Interrupt 16, for device(s): 16-fasteoi ehci_hcd:usb1, uhci_hcd:usb2
17-fasteoi uhci_hcd:usb3	i17	derive			Interrupt 17, for device(s): 17-fasteoi uhci_hcd:usb3
18-fasteoi uhci_hcd:usb4	i18	derive			Interrupt 18, for device(s): 18-fasteoi uhci_hcd:usb4
19-fasteoi uhci_hcd:usb5	i19	derive			Interrupt 19, for device(s): 19-fasteoi uhci_hcd:usb5
21-fasteoi ipmi_si	i21	derive			Interrupt 21, for device(s): 21-fasteoi ipmi_si
22-fasteoi uhci_hcd:usb6, hpilo	i22	derive			Interrupt 22, for device(s): 22-fasteoi uhci_hcd:usb6, hpilo
23-fasteoi radeon	i23	derive			Interrupt 23, for device(s): 23-fasteoi radeon
9437184-edge	i35	derive			Interrupt 35, for device(s): 9437184-edge
5898240-edge hpsa0-msi	i36	derive			Interrupt 36, for device(s): 5898240-edge hpsa0-msi
9439232-edge ens1f1	i37	derive			Interrupt 37, for device(s): 9439232-edge ens1f1
3670016-edge enp7s0	i40	derive			Interrupt 40, for device(s): 3670016-edge enp7s0
1572864-edge enp3s0	i41	derive			Interrupt 41, for device(s): 1572864-edge enp3s0
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