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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
timer i0 derive     Interrupt 0, for device(s): timer
i8042 i1 derive     Interrupt 1, for device(s): i8042
floppy i6 derive     Interrupt 6, for device(s): floppy
parport0 i7 derive     Interrupt 7, for device(s): parport0
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
uhci_hcd:usb1 i23 derive     Interrupt 23, for device(s): uhci_hcd:usb1
timer0 i48 derive     Interrupt 48, for device(s): timer0
resched0 i49 derive     Interrupt 49, for device(s): resched0
callfunc0 i50 derive     Interrupt 50, for device(s): callfunc0
debug0 i51 derive     Interrupt 51, for device(s): debug0
callfuncsingle0 i52 derive     Interrupt 52, for device(s): callfuncsingle0
spinlock0 i53 derive     Interrupt 53, for device(s): spinlock0
timer1 i54 derive     Interrupt 54, for device(s): timer1
resched1 i55 derive     Interrupt 55, for device(s): resched1
callfunc1 i56 derive     Interrupt 56, for device(s): callfunc1
debug1 i57 derive     Interrupt 57, for device(s): debug1
callfuncsingle1 i58 derive     Interrupt 58, for device(s): callfuncsingle1
spinlock1 i59 derive     Interrupt 59, for device(s): spinlock1
timer2 i60 derive     Interrupt 60, for device(s): timer2
resched2 i61 derive     Interrupt 61, for device(s): resched2
callfunc2 i62 derive     Interrupt 62, for device(s): callfunc2
debug2 i63 derive     Interrupt 63, for device(s): debug2
callfuncsingle2 i64 derive     Interrupt 64, for device(s): callfuncsingle2
spinlock2 i65 derive     Interrupt 65, for device(s): spinlock2
timer3 i66 derive     Interrupt 66, for device(s): timer3
resched3 i67 derive     Interrupt 67, for device(s): resched3
callfunc3 i68 derive     Interrupt 68, for device(s): callfunc3
debug3 i69 derive     Interrupt 69, for device(s): debug3
callfuncsingle3 i70 derive     Interrupt 70, for device(s): callfuncsingle3
spinlock3 i71 derive     Interrupt 71, for device(s): spinlock3
timer4 i72 derive     Interrupt 72, for device(s): timer4
resched4 i73 derive     Interrupt 73, for device(s): resched4
callfunc4 i74 derive     Interrupt 74, for device(s): callfunc4
debug4 i75 derive     Interrupt 75, for device(s): debug4
callfuncsingle4 i76 derive     Interrupt 76, for device(s): callfuncsingle4
spinlock4 i77 derive     Interrupt 77, for device(s): spinlock4
timer5 i78 derive     Interrupt 78, for device(s): timer5
resched5 i79 derive     Interrupt 79, for device(s): resched5
callfunc5 i80 derive     Interrupt 80, for device(s): callfunc5
debug5 i81 derive     Interrupt 81, for device(s): debug5
callfuncsingle5 i82 derive     Interrupt 82, for device(s): callfuncsingle5
spinlock5 i83 derive     Interrupt 83, for device(s): spinlock5
timer6 i84 derive     Interrupt 84, for device(s): timer6
resched6 i85 derive     Interrupt 85, for device(s): resched6
callfunc6 i86 derive     Interrupt 86, for device(s): callfunc6
debug6 i87 derive     Interrupt 87, for device(s): debug6
callfuncsingle6 i88 derive     Interrupt 88, for device(s): callfuncsingle6
spinlock6 i89 derive     Interrupt 89, for device(s): spinlock6
timer7 i90 derive     Interrupt 90, for device(s): timer7
resched7 i91 derive     Interrupt 91, for device(s): resched7
callfunc7 i92 derive     Interrupt 92, for device(s): callfunc7
debug7 i93 derive     Interrupt 93, for device(s): debug7
callfuncsingle7 i94 derive     Interrupt 94, for device(s): callfuncsingle7
spinlock7 i95 derive     Interrupt 95, for device(s): spinlock7
xenbus i96 derive     Interrupt 96, for device(s): xenbus
hvc_console i97 derive     Interrupt 97, for device(s): hvc_console
vif0-q0-tx i98 derive     Interrupt 98, for device(s): vif0-q0-tx
vif0-q0-rx i99 derive     Interrupt 99, for device(s): vif0-q0-rx
vif0-q1-tx i100 derive     Interrupt 100, for device(s): vif0-q1-tx
vif0-q1-rx i101 derive     Interrupt 101, for device(s): vif0-q1-rx
vif0-q2-tx i102 derive     Interrupt 102, for device(s): vif0-q2-tx
vif0-q2-rx i103 derive     Interrupt 103, for device(s): vif0-q2-rx
vif0-q3-tx i104 derive     Interrupt 104, for device(s): vif0-q3-tx
vif0-q3-rx i105 derive     Interrupt 105, for device(s): vif0-q3-rx
vif0-q4-tx i106 derive     Interrupt 106, for device(s): vif0-q4-tx
vif0-q4-rx i107 derive     Interrupt 107, for device(s): vif0-q4-rx
vif0-q5-tx i108 derive     Interrupt 108, for device(s): vif0-q5-tx
vif0-q5-rx i109 derive     Interrupt 109, for device(s): vif0-q5-rx
vif0-q6-tx i110 derive     Interrupt 110, for device(s): vif0-q6-tx
vif0-q6-rx i111 derive     Interrupt 111, for device(s): vif0-q6-rx
vif0-q7-tx i112 derive     Interrupt 112, for device(s): vif0-q7-tx
vif0-q7-rx i113 derive     Interrupt 113, for device(s): vif0-q7-rx
vif1-q0-tx i114 derive     Interrupt 114, for device(s): vif1-q0-tx
vif1-q0-rx i115 derive     Interrupt 115, for device(s): vif1-q0-rx
vif1-q1-tx i116 derive     Interrupt 116, for device(s): vif1-q1-tx
vif1-q1-rx i117 derive     Interrupt 117, for device(s): vif1-q1-rx
vif1-q2-tx i118 derive     Interrupt 118, for device(s): vif1-q2-tx
vif1-q2-rx i119 derive     Interrupt 119, for device(s): vif1-q2-rx
vif1-q3-tx i120 derive     Interrupt 120, for device(s): vif1-q3-tx
vif1-q3-rx i121 derive     Interrupt 121, for device(s): vif1-q3-rx
vif1-q4-tx i122 derive     Interrupt 122, for device(s): vif1-q4-tx
vif1-q4-rx i123 derive     Interrupt 123, for device(s): vif1-q4-rx
vif1-q5-tx i124 derive     Interrupt 124, for device(s): vif1-q5-tx
vif1-q5-rx i125 derive     Interrupt 125, for device(s): vif1-q5-rx
vif1-q6-tx i126 derive     Interrupt 126, for device(s): vif1-q6-tx
vif1-q6-rx i127 derive     Interrupt 127, for device(s): vif1-q6-rx
vif1-q7-tx i128 derive     Interrupt 128, for device(s): vif1-q7-tx
vif1-q7-rx i129 derive     Interrupt 129, for device(s): vif1-q7-rx
blkif i130 derive     Interrupt 130, for device(s): blkif
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
Hypervisor callback interrupts iHYP derive     Interrupt HYP, for device(s): Hypervisor callback interrupts
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