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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
1-edge i8042	i1	derive			Interrupt 1, for device(s): 1-edge i8042
6-edge floppy	i6	derive			Interrupt 6, for device(s): 6-edge floppy
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
10-fasteoi uhci_hcd:usb3, uhci_hcd:usb4, qxl	i10	derive			Interrupt 10, for device(s): 10-fasteoi uhci_hcd:usb3, uhci_hcd:usb4, qxl
11	i11	derive			Interrupt 11, for device(s): 11-fasteoi virtio2, ehci_hcd:usb1, uhci_hcd:usb2, eth0
12-edge i8042	i12	derive			Interrupt 12, for device(s): 12-edge i8042
14-edge ata_piix	i14	derive			Interrupt 14, for device(s): 14-edge ata_piix
15-edge ata_piix	i15	derive			Interrupt 15, for device(s): 15-edge ata_piix
0-edge virtio1-config	i24	derive			Interrupt 24, for device(s): 0-edge virtio1-config
1-edge virtio1-req.0	i25	derive			Interrupt 25, for device(s): 1-edge virtio1-req.0
0-edge virtio0-config	i26	derive			Interrupt 26, for device(s): 0-edge virtio0-config
1-edge virtio0-control	i27	derive			Interrupt 27, for device(s): 1-edge virtio0-control
2-edge virtio0-event	i28	derive			Interrupt 28, for device(s): 2-edge virtio0-event
3-edge virtio0-request	i29	derive			Interrupt 29, for device(s): 3-edge virtio0-request
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