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• Warning (4)
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Graph Information

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
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
uhci_hcd:usb3	i17	derive			Interrupt 17, for device(s): uhci_hcd:usb3
uhci_hcd:usb4	i18	derive			Interrupt 18, for device(s): uhci_hcd:usb4
ehci_hcd:usb1	i19	derive			Interrupt 19, for device(s): ehci_hcd:usb1
uhci_hcd:usb6	i20	derive			Interrupt 20, for device(s): uhci_hcd:usb6
ehci_hcd:usb2, uhci_hcd:usb5	i21	derive			Interrupt 21, for device(s): ehci_hcd:usb2, uhci_hcd:usb5
ata_piix	i23	derive			Interrupt 23, for device(s): ata_piix
PCIe PME	i72	derive			Interrupt 72, for device(s): PCIe PME
PCIe PME	i73	derive			Interrupt 73, for device(s): PCIe PME
PCIe PME	i74	derive			Interrupt 74, for device(s): PCIe PME
PCIe PME	i75	derive			Interrupt 75, for device(s): PCIe PME
PCIe PME	i76	derive			Interrupt 76, for device(s): PCIe PME
megasas	i77	derive			Interrupt 77, for device(s): megasas
em1-0	i78	derive			Interrupt 78, for device(s): em1-0
em1-1	i79	derive			Interrupt 79, for device(s): em1-1
em1-2	i80	derive			Interrupt 80, for device(s): em1-2
em1-3	i81	derive			Interrupt 81, for device(s): em1-3
em1-4	i82	derive			Interrupt 82, for device(s): em1-4
em1-5	i83	derive			Interrupt 83, for device(s): em1-5
em1-6	i84	derive			Interrupt 84, for device(s): em1-6
em1-7	i85	derive			Interrupt 85, for device(s): em1-7
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
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