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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 i0 derive     Interrupt 0, for device(s): timer0
spinlock0 i1 derive     Interrupt 1, for device(s): spinlock0
resched0 i2 derive     Interrupt 2, for device(s): resched0
callfunc0 i3 derive     Interrupt 3, for device(s): callfunc0
debug0 i4 derive     Interrupt 4, for device(s): debug0
callfuncsingle0 i5 derive     Interrupt 5, for device(s): callfuncsingle0
irqwork0 i6 derive     Interrupt 6, for device(s): irqwork0
timer1 i7 derive     Interrupt 7, for device(s): timer1
spinlock1 i8 derive     Interrupt 8, for device(s): spinlock1
resched1 i9 derive     Interrupt 9, for device(s): resched1
callfunc1 i10 derive     Interrupt 10, for device(s): callfunc1
debug1 i11 derive     Interrupt 11, for device(s): debug1
callfuncsingle1 i12 derive     Interrupt 12, for device(s): callfuncsingle1
irqwork1 i13 derive     Interrupt 13, for device(s): irqwork1
timer2 i14 derive     Interrupt 14, for device(s): timer2
spinlock2 i15 derive     Interrupt 15, for device(s): spinlock2
resched2 i16 derive     Interrupt 16, for device(s): resched2
callfunc2 i17 derive     Interrupt 17, for device(s): callfunc2
debug2 i18 derive     Interrupt 18, for device(s): debug2
callfuncsingle2 i19 derive     Interrupt 19, for device(s): callfuncsingle2
irqwork2 i20 derive     Interrupt 20, for device(s): irqwork2
timer3 i21 derive     Interrupt 21, for device(s): timer3
spinlock3 i22 derive     Interrupt 22, for device(s): spinlock3
resched3 i23 derive     Interrupt 23, for device(s): resched3
callfunc3 i24 derive     Interrupt 24, for device(s): callfunc3
debug3 i25 derive     Interrupt 25, for device(s): debug3
callfuncsingle3 i26 derive     Interrupt 26, for device(s): callfuncsingle3
irqwork3 i27 derive     Interrupt 27, for device(s): irqwork3
timer4 i28 derive     Interrupt 28, for device(s): timer4
spinlock4 i29 derive     Interrupt 29, for device(s): spinlock4
resched4 i30 derive     Interrupt 30, for device(s): resched4
callfunc4 i31 derive     Interrupt 31, for device(s): callfunc4
debug4 i32 derive     Interrupt 32, for device(s): debug4
callfuncsingle4 i33 derive     Interrupt 33, for device(s): callfuncsingle4
irqwork4 i34 derive     Interrupt 34, for device(s): irqwork4
timer5 i35 derive     Interrupt 35, for device(s): timer5
spinlock5 i36 derive     Interrupt 36, for device(s): spinlock5
resched5 i37 derive     Interrupt 37, for device(s): resched5
callfunc5 i38 derive     Interrupt 38, for device(s): callfunc5
debug5 i39 derive     Interrupt 39, for device(s): debug5
callfuncsingle5 i40 derive     Interrupt 40, for device(s): callfuncsingle5
irqwork5 i41 derive     Interrupt 41, for device(s): irqwork5
xenbus i42 derive     Interrupt 42, for device(s): xenbus
hvc_console i43 derive     Interrupt 43, for device(s): hvc_console
blkif i44 derive     Interrupt 44, for device(s): blkif
blkif i45 derive     Interrupt 45, for device(s): blkif
blkif i46 derive     Interrupt 46, for device(s): blkif
eth0 i47 derive     Interrupt 47, for device(s): eth0
eth1 i48 derive     Interrupt 48, 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
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
Posted-interrupt wakeup event iPIW derive     Interrupt PIW, for device(s): Posted-interrupt wakeup event