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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
-virq timer0 i0 derive     Interrupt 0, for device(s): -virq timer0
-ipi spinlock0 i1 derive     Interrupt 1, for device(s): -ipi spinlock0
-ipi resched0 i2 derive     Interrupt 2, for device(s): -ipi resched0
-ipi callfunc0 i3 derive     Interrupt 3, for device(s): -ipi callfunc0
-ipi callfuncsingle0 i4 derive     Interrupt 4, for device(s): -ipi callfuncsingle0
-ipi irqwork0 i5 derive     Interrupt 5, for device(s): -ipi irqwork0
-virq timer1 i6 derive     Interrupt 6, for device(s): -virq timer1
-ipi resched1 i7 derive     Interrupt 7, for device(s): -ipi resched1
-ipi callfunc1 i8 derive     Interrupt 8, for device(s): -ipi callfunc1
-ipi callfuncsingle1 i9 derive     Interrupt 9, for device(s): -ipi callfuncsingle1
-ipi irqwork1 i10 derive     Interrupt 10, for device(s): -ipi irqwork1
-ipi spinlock1 i11 derive     Interrupt 11, for device(s): -ipi spinlock1
-virq timer2 i12 derive     Interrupt 12, for device(s): -virq timer2
-ipi resched2 i13 derive     Interrupt 13, for device(s): -ipi resched2
-ipi callfunc2 i14 derive     Interrupt 14, for device(s): -ipi callfunc2
-ipi callfuncsingle2 i15 derive     Interrupt 15, for device(s): -ipi callfuncsingle2
-ipi irqwork2 i16 derive     Interrupt 16, for device(s): -ipi irqwork2
-ipi spinlock2 i17 derive     Interrupt 17, for device(s): -ipi spinlock2
-virq timer3 i18 derive     Interrupt 18, for device(s): -virq timer3
-ipi resched3 i19 derive     Interrupt 19, for device(s): -ipi resched3
-ipi callfunc3 i20 derive     Interrupt 20, for device(s): -ipi callfunc3
-ipi callfuncsingle3 i21 derive     Interrupt 21, for device(s): -ipi callfuncsingle3
-ipi irqwork3 i22 derive     Interrupt 22, for device(s): -ipi irqwork3
-ipi spinlock3 i23 derive     Interrupt 23, for device(s): -ipi spinlock3
-virq timer4 i24 derive     Interrupt 24, for device(s): -virq timer4
-ipi resched4 i25 derive     Interrupt 25, for device(s): -ipi resched4
-ipi callfunc4 i26 derive     Interrupt 26, for device(s): -ipi callfunc4
-ipi callfuncsingle4 i27 derive     Interrupt 27, for device(s): -ipi callfuncsingle4
-ipi irqwork4 i28 derive     Interrupt 28, for device(s): -ipi irqwork4
-ipi spinlock4 i29 derive     Interrupt 29, for device(s): -ipi spinlock4
-virq timer5 i30 derive     Interrupt 30, for device(s): -virq timer5
-ipi resched5 i31 derive     Interrupt 31, for device(s): -ipi resched5
-ipi callfunc5 i32 derive     Interrupt 32, for device(s): -ipi callfunc5
-ipi callfuncsingle5 i33 derive     Interrupt 33, for device(s): -ipi callfuncsingle5
-ipi irqwork5 i34 derive     Interrupt 34, for device(s): -ipi irqwork5
-ipi spinlock5 i35 derive     Interrupt 35, for device(s): -ipi spinlock5
-virq timer6 i36 derive     Interrupt 36, for device(s): -virq timer6
-ipi resched6 i37 derive     Interrupt 37, for device(s): -ipi resched6
-ipi callfunc6 i38 derive     Interrupt 38, for device(s): -ipi callfunc6
-ipi callfuncsingle6 i39 derive     Interrupt 39, for device(s): -ipi callfuncsingle6
-ipi irqwork6 i40 derive     Interrupt 40, for device(s): -ipi irqwork6
-ipi spinlock6 i41 derive     Interrupt 41, for device(s): -ipi spinlock6
-virq timer7 i42 derive     Interrupt 42, for device(s): -virq timer7
-ipi resched7 i43 derive     Interrupt 43, for device(s): -ipi resched7
-ipi callfunc7 i44 derive     Interrupt 44, for device(s): -ipi callfunc7
-ipi callfuncsingle7 i45 derive     Interrupt 45, for device(s): -ipi callfuncsingle7
-ipi irqwork7 i46 derive     Interrupt 46, for device(s): -ipi irqwork7
-ipi spinlock7 i47 derive     Interrupt 47, for device(s): -ipi spinlock7
-event xenbus i48 derive     Interrupt 48, for device(s): -event xenbus
-event hvc_console i49 derive     Interrupt 49, for device(s): -event hvc_console
-event blkif i50 derive     Interrupt 50, for device(s): -event blkif
-event blkif i51 derive     Interrupt 51, for device(s): -event blkif
-event vif0-q0-tx i52 derive     Interrupt 52, for device(s): -event vif0-q0-tx
-event vif0-q0-rx i53 derive     Interrupt 53, for device(s): -event vif0-q0-rx
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