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Service graphs

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
timer0	i16	derive			Interrupt 16, for device(s): timer0
resched0	i17	derive			Interrupt 17, for device(s): resched0
callfunc0	i18	derive			Interrupt 18, for device(s): callfunc0
debug0	i19	derive			Interrupt 19, for device(s): debug0
callfuncsingle0	i20	derive			Interrupt 20, for device(s): callfuncsingle0
irqwork0	i21	derive			Interrupt 21, for device(s): irqwork0
timer1	i22	derive			Interrupt 22, for device(s): timer1
resched1	i23	derive			Interrupt 23, for device(s): resched1
callfunc1	i24	derive			Interrupt 24, for device(s): callfunc1
debug1	i25	derive			Interrupt 25, for device(s): debug1
callfuncsingle1	i26	derive			Interrupt 26, for device(s): callfuncsingle1
irqwork1	i27	derive			Interrupt 27, for device(s): irqwork1
timer2	i28	derive			Interrupt 28, for device(s): timer2
resched2	i29	derive			Interrupt 29, for device(s): resched2
callfunc2	i30	derive			Interrupt 30, for device(s): callfunc2
debug2	i31	derive			Interrupt 31, for device(s): debug2
callfuncsingle2	i32	derive			Interrupt 32, for device(s): callfuncsingle2
irqwork2	i33	derive			Interrupt 33, for device(s): irqwork2
timer3	i34	derive			Interrupt 34, for device(s): timer3
resched3	i35	derive			Interrupt 35, for device(s): resched3
callfunc3	i36	derive			Interrupt 36, for device(s): callfunc3
debug3	i37	derive			Interrupt 37, for device(s): debug3
callfuncsingle3	i38	derive			Interrupt 38, for device(s): callfuncsingle3
irqwork3	i39	derive			Interrupt 39, for device(s): irqwork3
timer4	i40	derive			Interrupt 40, for device(s): timer4
resched4	i41	derive			Interrupt 41, for device(s): resched4
callfunc4	i42	derive			Interrupt 42, for device(s): callfunc4
debug4	i43	derive			Interrupt 43, for device(s): debug4
callfuncsingle4	i44	derive			Interrupt 44, for device(s): callfuncsingle4
irqwork4	i45	derive			Interrupt 45, for device(s): irqwork4
timer5	i46	derive			Interrupt 46, for device(s): timer5
resched5	i47	derive			Interrupt 47, for device(s): resched5
callfunc5	i48	derive			Interrupt 48, for device(s): callfunc5
debug5	i49	derive			Interrupt 49, for device(s): debug5
callfuncsingle5	i50	derive			Interrupt 50, for device(s): callfuncsingle5
irqwork5	i51	derive			Interrupt 51, for device(s): irqwork5
xenbus	i52	derive			Interrupt 52, for device(s): xenbus
hvc_console	i53	derive			Interrupt 53, for device(s): hvc_console
blkif	i54	derive			Interrupt 54, for device(s): blkif
eth0	i55	derive			Interrupt 55, for device(s): eth0
blkif	i56	derive			Interrupt 56, for device(s): blkif
eth1	i57	derive			Interrupt 57, for device(s): eth1
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