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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
timer	i0	derive			Interrupt 0, for device(s): timer
i8042	i1	derive			Interrupt 1, for device(s): i8042
serial	i4	derive			Interrupt 4, for device(s): serial
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
ata_piix	i14	derive			Interrupt 14, for device(s): ata_piix
ata_piix	i15	derive			Interrupt 15, for device(s): ata_piix
eth0	i925	derive			Interrupt 925, for device(s): eth0
blkif	i926	derive			Interrupt 926, for device(s): blkif
xenbus	i927	derive			Interrupt 927, for device(s): xenbus
callfuncsingle1	i928	derive			Interrupt 928, for device(s): callfuncsingle1
debug1	i929	derive			Interrupt 929, for device(s): debug1
callfunc1	i930	derive			Interrupt 930, for device(s): callfunc1
resched1	i931	derive			Interrupt 931, for device(s): resched1
callfuncsingle0	i932	derive			Interrupt 932, for device(s): callfuncsingle0
debug0	i933	derive			Interrupt 933, for device(s): debug0
callfunc0	i934	derive			Interrupt 934, for device(s): callfunc0
resched0	i935	derive			Interrupt 935, for device(s): resched0
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