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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
2-edge timer i0 derive     Interrupt 0, for device(s): 2-edge timer
1-ioapic-edge i8042 i1 derive     Interrupt 1, for device(s): 1-ioapic-edge i8042
6-ioapic-edge floppy i6 derive     Interrupt 6, for device(s): 6-ioapic-edge floppy
7-ioapic-edge parport0 i7 derive     Interrupt 7, for device(s): 7-ioapic-edge parport0
8-ioapic-edge rtc0 i8 derive     Interrupt 8, for device(s): 8-ioapic-edge rtc0
9-ioapic-level acpi i9 derive     Interrupt 9, for device(s): 9-ioapic-level acpi
12-ioapic-edge i8042 i12 derive     Interrupt 12, for device(s): 12-ioapic-edge i8042
14-edge ata_piix i14 derive     Interrupt 14, for device(s): 14-edge ata_piix
15-edge ata_piix i15 derive     Interrupt 15, for device(s): 15-edge ata_piix
-ioapic-level uhci_hcd:usb1 i23 derive     Interrupt 23, for device(s): -ioapic-level uhci_hcd:usb1
-virq timer0 i48 derive     Interrupt 48, for device(s): -virq timer0
-ipi resched0 i49 derive     Interrupt 49, for device(s): -ipi resched0
-ipi callfunc0 i50 derive     Interrupt 50, for device(s): -ipi callfunc0
-ipi callfuncsingle0 i51 derive     Interrupt 51, for device(s): -ipi callfuncsingle0
-ipi spinlock0 i52 derive     Interrupt 52, for device(s): -ipi spinlock0
-virq timer1 i53 derive     Interrupt 53, for device(s): -virq timer1
-ipi resched1 i54 derive     Interrupt 54, for device(s): -ipi resched1
-ipi callfunc1 i55 derive     Interrupt 55, for device(s): -ipi callfunc1
-ipi callfuncsingle1 i56 derive     Interrupt 56, for device(s): -ipi callfuncsingle1
-ipi spinlock1 i57 derive     Interrupt 57, for device(s): -ipi spinlock1
-virq timer2 i58 derive     Interrupt 58, for device(s): -virq timer2
-ipi resched2 i59 derive     Interrupt 59, for device(s): -ipi resched2
-ipi callfunc2 i60 derive     Interrupt 60, for device(s): -ipi callfunc2
-ipi callfuncsingle2 i61 derive     Interrupt 61, for device(s): -ipi callfuncsingle2
-ipi spinlock2 i62 derive     Interrupt 62, for device(s): -ipi spinlock2
-virq timer3 i63 derive     Interrupt 63, for device(s): -virq timer3
-ipi resched3 i64 derive     Interrupt 64, for device(s): -ipi resched3
-ipi callfunc3 i65 derive     Interrupt 65, for device(s): -ipi callfunc3
-ipi callfuncsingle3 i66 derive     Interrupt 66, for device(s): -ipi callfuncsingle3
-ipi spinlock3 i67 derive     Interrupt 67, for device(s): -ipi spinlock3
-virq timer4 i68 derive     Interrupt 68, for device(s): -virq timer4
-ipi resched4 i69 derive     Interrupt 69, for device(s): -ipi resched4
-ipi callfunc4 i70 derive     Interrupt 70, for device(s): -ipi callfunc4
-ipi callfuncsingle4 i71 derive     Interrupt 71, for device(s): -ipi callfuncsingle4
-ipi spinlock4 i72 derive     Interrupt 72, for device(s): -ipi spinlock4
-virq timer5 i73 derive     Interrupt 73, for device(s): -virq timer5
-ipi resched5 i74 derive     Interrupt 74, for device(s): -ipi resched5
-ipi callfunc5 i75 derive     Interrupt 75, for device(s): -ipi callfunc5
-ipi callfuncsingle5 i76 derive     Interrupt 76, for device(s): -ipi callfuncsingle5
-ipi spinlock5 i77 derive     Interrupt 77, for device(s): -ipi spinlock5
-virq timer6 i78 derive     Interrupt 78, for device(s): -virq timer6
-ipi resched6 i79 derive     Interrupt 79, for device(s): -ipi resched6
-ipi callfunc6 i80 derive     Interrupt 80, for device(s): -ipi callfunc6
-ipi callfuncsingle6 i81 derive     Interrupt 81, for device(s): -ipi callfuncsingle6
-ipi spinlock6 i82 derive     Interrupt 82, for device(s): -ipi spinlock6
-virq timer7 i83 derive     Interrupt 83, for device(s): -virq timer7
-ipi resched7 i84 derive     Interrupt 84, for device(s): -ipi resched7
-ipi callfunc7 i85 derive     Interrupt 85, for device(s): -ipi callfunc7
-ipi callfuncsingle7 i86 derive     Interrupt 86, for device(s): -ipi callfuncsingle7
-ipi spinlock7 i87 derive     Interrupt 87, for device(s): -ipi spinlock7
-virq timer8 i88 derive     Interrupt 88, for device(s): -virq timer8
-ipi resched8 i89 derive     Interrupt 89, for device(s): -ipi resched8
-ipi callfunc8 i90 derive     Interrupt 90, for device(s): -ipi callfunc8
-ipi callfuncsingle8 i91 derive     Interrupt 91, for device(s): -ipi callfuncsingle8
-ipi spinlock8 i92 derive     Interrupt 92, for device(s): -ipi spinlock8
-virq timer9 i93 derive     Interrupt 93, for device(s): -virq timer9
-ipi resched9 i94 derive     Interrupt 94, for device(s): -ipi resched9
-ipi callfunc9 i95 derive     Interrupt 95, for device(s): -ipi callfunc9
-ipi callfuncsingle9 i96 derive     Interrupt 96, for device(s): -ipi callfuncsingle9
-ipi spinlock9 i97 derive     Interrupt 97, for device(s): -ipi spinlock9
-virq timer10 i98 derive     Interrupt 98, for device(s): -virq timer10
-ipi resched10 i99 derive     Interrupt 99, for device(s): -ipi resched10
-ipi callfunc10 i100 derive     Interrupt 100, for device(s): -ipi callfunc10
-ipi callfuncsingle10 i101 derive     Interrupt 101, for device(s): -ipi callfuncsingle10
-ipi spinlock10 i102 derive     Interrupt 102, for device(s): -ipi spinlock10
-virq timer11 i103 derive     Interrupt 103, for device(s): -virq timer11
-ipi resched11 i104 derive     Interrupt 104, for device(s): -ipi resched11
-ipi callfunc11 i105 derive     Interrupt 105, for device(s): -ipi callfunc11
-ipi callfuncsingle11 i106 derive     Interrupt 106, for device(s): -ipi callfuncsingle11
-ipi spinlock11 i107 derive     Interrupt 107, for device(s): -ipi spinlock11
-virq timer12 i108 derive     Interrupt 108, for device(s): -virq timer12
-ipi resched12 i109 derive     Interrupt 109, for device(s): -ipi resched12
-ipi callfunc12 i110 derive     Interrupt 110, for device(s): -ipi callfunc12
-ipi callfuncsingle12 i111 derive     Interrupt 111, for device(s): -ipi callfuncsingle12
-ipi spinlock12 i112 derive     Interrupt 112, for device(s): -ipi spinlock12
-virq timer13 i113 derive     Interrupt 113, for device(s): -virq timer13
-ipi resched13 i114 derive     Interrupt 114, for device(s): -ipi resched13
-ipi callfunc13 i115 derive     Interrupt 115, for device(s): -ipi callfunc13
-ipi callfuncsingle13 i116 derive     Interrupt 116, for device(s): -ipi callfuncsingle13
-ipi spinlock13 i117 derive     Interrupt 117, for device(s): -ipi spinlock13
-virq timer14 i118 derive     Interrupt 118, for device(s): -virq timer14
-ipi resched14 i119 derive     Interrupt 119, for device(s): -ipi resched14
-ipi callfunc14 i120 derive     Interrupt 120, for device(s): -ipi callfunc14
-ipi callfuncsingle14 i121 derive     Interrupt 121, for device(s): -ipi callfuncsingle14
-ipi spinlock14 i122 derive     Interrupt 122, for device(s): -ipi spinlock14
-virq timer15 i123 derive     Interrupt 123, for device(s): -virq timer15
-ipi resched15 i124 derive     Interrupt 124, for device(s): -ipi resched15
-ipi callfunc15 i125 derive     Interrupt 125, for device(s): -ipi callfunc15
-ipi callfuncsingle15 i126 derive     Interrupt 126, for device(s): -ipi callfuncsingle15
-ipi spinlock15 i127 derive     Interrupt 127, for device(s): -ipi spinlock15
-event xenbus i128 derive     Interrupt 128, for device(s): -event xenbus
-event hvc_console i129 derive     Interrupt 129, for device(s): -event hvc_console
-event blkif i130 derive     Interrupt 130, for device(s): -event blkif
-event blkif i131 derive     Interrupt 131, for device(s): -event blkif
-event vif0-q0-tx i132 derive     Interrupt 132, for device(s): -event vif0-q0-tx
-event vif0-q0-rx i133 derive     Interrupt 133, for device(s): -event vif0-q0-rx
-event vif0-q1-tx i134 derive     Interrupt 134, for device(s): -event vif0-q1-tx
-event vif0-q1-rx i135 derive     Interrupt 135, for device(s): -event vif0-q1-rx
-event vif0-q2-tx i136 derive     Interrupt 136, for device(s): -event vif0-q2-tx
-event vif0-q2-rx i137 derive     Interrupt 137, for device(s): -event vif0-q2-rx
-event vif0-q3-tx i138 derive     Interrupt 138, for device(s): -event vif0-q3-tx
-event vif0-q3-rx i139 derive     Interrupt 139, for device(s): -event vif0-q3-rx
-event vif0-q4-tx i140 derive     Interrupt 140, for device(s): -event vif0-q4-tx
-event vif0-q4-rx i141 derive     Interrupt 141, for device(s): -event vif0-q4-rx
-event vif0-q5-tx i142 derive     Interrupt 142, for device(s): -event vif0-q5-tx
-event vif0-q5-rx i143 derive     Interrupt 143, for device(s): -event vif0-q5-rx
-event vif0-q6-tx i144 derive     Interrupt 144, for device(s): -event vif0-q6-tx
-event vif0-q6-rx i145 derive     Interrupt 145, for device(s): -event vif0-q6-rx
-event vif0-q7-tx i146 derive     Interrupt 146, for device(s): -event vif0-q7-tx
-event vif0-q7-rx i147 derive     Interrupt 147, for device(s): -event vif0-q7-rx
-msi-x nvidia i148 derive     Interrupt 148, for device(s): -msi-x nvidia
-msi-x nvidia i149 derive     Interrupt 149, for device(s): -msi-x nvidia
-msi-x nvidia i150 derive     Interrupt 150, for device(s): -msi-x nvidia
-msi-x nvidia i151 derive     Interrupt 151, for device(s): -msi-x nvidia
-msi-x nvidia i152 derive     Interrupt 152, for device(s): -msi-x nvidia
-msi-x nvidia i153 derive     Interrupt 153, for device(s): -msi-x nvidia
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