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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	Warning	Critical	Info
2-edge timer	i0	derive			Interrupt 0, for device(s): 2-edge timer
4-edge ttyS0	i4	derive			Interrupt 4, for device(s): 4-edge ttyS0
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
18	i18	derive			Interrupt 18, for device(s): 18-fasteoi i801_smbus, ehci_hcd:usb1, ehci_hcd:usb2
0-edge dmar0	i24	derive			Interrupt 24, for device(s): 0-edge dmar0
2621440-edge eno1	i29	derive			Interrupt 29, for device(s): 2621440-edge eno1
2621441-edge eno1-TxRx-0	i30	derive			Interrupt 30, for device(s): 2621441-edge eno1-TxRx-0
2621442-edge eno1-TxRx-1	i31	derive			Interrupt 31, for device(s): 2621442-edge eno1-TxRx-1
2621443-edge eno1-TxRx-2	i32	derive			Interrupt 32, for device(s): 2621443-edge eno1-TxRx-2
2621444-edge eno1-TxRx-3	i33	derive			Interrupt 33, for device(s): 2621444-edge eno1-TxRx-3
2621445-edge eno1-TxRx-4	i34	derive			Interrupt 34, for device(s): 2621445-edge eno1-TxRx-4
2621446-edge eno1-TxRx-5	i35	derive			Interrupt 35, for device(s): 2621446-edge eno1-TxRx-5
2621447-edge eno1-TxRx-6	i36	derive			Interrupt 36, for device(s): 2621447-edge eno1-TxRx-6
2621448-edge eno1-TxRx-7	i37	derive			Interrupt 37, for device(s): 2621448-edge eno1-TxRx-7
327680-edge xhci_hcd	i47	derive			Interrupt 47, for device(s): 327680-edge xhci_hcd
512000-edge ahci[0000:00:1f.2]	i48	derive			Interrupt 48, for device(s): 512000-edge ahci[0000:00:1f.2]
1048576-edge ioat-msix	i49	derive			Interrupt 49, for device(s): 1048576-edge ioat-msix
1050624-edge ioat-msix	i50	derive			Interrupt 50, for device(s): 1050624-edge ioat-msix
1052672-edge ioat-msix	i51	derive			Interrupt 51, for device(s): 1052672-edge ioat-msix
1054720-edge ioat-msix	i52	derive			Interrupt 52, for device(s): 1054720-edge ioat-msix
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