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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
i8042 i1 derive     Interrupt 1, for device(s): i8042
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
megasas i16 derive     Interrupt 16, for device(s): megasas
radeon i19 derive     Interrupt 19, for device(s): radeon
uhci_hcd:usb3, uhci_hcd:usb5 i20 derive     Interrupt 20, for device(s): uhci_hcd:usb3, uhci_hcd:usb5
ehci_hcd:usb1, uhci_hcd:usb2, uhci_hcd:usb4 i21 derive     Interrupt 21, for device(s): ehci_hcd:usb1, uhci_hcd:usb2, uhci_hcd:usb4
timer0 i40 derive     Interrupt 40, for device(s): timer0
spinlock0 i41 derive     Interrupt 41, for device(s): spinlock0
resched0 i42 derive     Interrupt 42, for device(s): resched0
callfunc0 i43 derive     Interrupt 43, for device(s): callfunc0
debug0 i44 derive     Interrupt 44, for device(s): debug0
callfuncsingle0 i45 derive     Interrupt 45, for device(s): callfuncsingle0
irqwork0 i46 derive     Interrupt 46, for device(s): irqwork0
timer1 i47 derive     Interrupt 47, for device(s): timer1
spinlock1 i48 derive     Interrupt 48, for device(s): spinlock1
resched1 i49 derive     Interrupt 49, for device(s): resched1
callfunc1 i50 derive     Interrupt 50, for device(s): callfunc1
debug1 i51 derive     Interrupt 51, for device(s): debug1
callfuncsingle1 i52 derive     Interrupt 52, for device(s): callfuncsingle1
irqwork1 i53 derive     Interrupt 53, for device(s): irqwork1
timer2 i54 derive     Interrupt 54, for device(s): timer2
spinlock2 i55 derive     Interrupt 55, for device(s): spinlock2
resched2 i56 derive     Interrupt 56, for device(s): resched2
callfunc2 i57 derive     Interrupt 57, for device(s): callfunc2
debug2 i58 derive     Interrupt 58, for device(s): debug2
callfuncsingle2 i59 derive     Interrupt 59, for device(s): callfuncsingle2
irqwork2 i60 derive     Interrupt 60, for device(s): irqwork2
timer3 i61 derive     Interrupt 61, for device(s): timer3
spinlock3 i62 derive     Interrupt 62, for device(s): spinlock3
resched3 i63 derive     Interrupt 63, for device(s): resched3
callfunc3 i64 derive     Interrupt 64, for device(s): callfunc3
debug3 i65 derive     Interrupt 65, for device(s): debug3
callfuncsingle3 i66 derive     Interrupt 66, for device(s): callfuncsingle3
irqwork3 i67 derive     Interrupt 67, for device(s): irqwork3
timer4 i68 derive     Interrupt 68, for device(s): timer4
spinlock4 i69 derive     Interrupt 69, for device(s): spinlock4
resched4 i70 derive     Interrupt 70, for device(s): resched4
callfunc4 i71 derive     Interrupt 71, for device(s): callfunc4
debug4 i72 derive     Interrupt 72, for device(s): debug4
callfuncsingle4 i73 derive     Interrupt 73, for device(s): callfuncsingle4
irqwork4 i74 derive     Interrupt 74, for device(s): irqwork4
timer5 i75 derive     Interrupt 75, for device(s): timer5
spinlock5 i76 derive     Interrupt 76, for device(s): spinlock5
resched5 i77 derive     Interrupt 77, for device(s): resched5
callfunc5 i78 derive     Interrupt 78, for device(s): callfunc5
debug5 i79 derive     Interrupt 79, for device(s): debug5
callfuncsingle5 i80 derive     Interrupt 80, for device(s): callfuncsingle5
irqwork5 i81 derive     Interrupt 81, for device(s): irqwork5
timer6 i82 derive     Interrupt 82, for device(s): timer6
spinlock6 i83 derive     Interrupt 83, for device(s): spinlock6
resched6 i84 derive     Interrupt 84, for device(s): resched6
callfunc6 i85 derive     Interrupt 85, for device(s): callfunc6
debug6 i86 derive     Interrupt 86, for device(s): debug6
callfuncsingle6 i87 derive     Interrupt 87, for device(s): callfuncsingle6
irqwork6 i88 derive     Interrupt 88, for device(s): irqwork6
timer7 i89 derive     Interrupt 89, for device(s): timer7
spinlock7 i90 derive     Interrupt 90, for device(s): spinlock7
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
irqwork7 i95 derive     Interrupt 95, for device(s): irqwork7
xenbus i96 derive     Interrupt 96, for device(s): xenbus
xen-pcpu i97 derive     Interrupt 97, for device(s): xen-pcpu
PCIe PME i98 derive     Interrupt 98, for device(s): PCIe PME
PCIe PME i99 derive     Interrupt 99, for device(s): PCIe PME
PCIe PME i100 derive     Interrupt 100, for device(s): PCIe PME
PCIe PME i101 derive     Interrupt 101, for device(s): PCIe PME
PCIe PME i102 derive     Interrupt 102, for device(s): PCIe PME
PCIe PME i103 derive     Interrupt 103, for device(s): PCIe PME
PCIe PME i104 derive     Interrupt 104, for device(s): PCIe PME
mce i105 derive     Interrupt 105, for device(s): mce
eth0 i107 derive     Interrupt 107, for device(s): eth0
evtchn:xenstored i108 derive     Interrupt 108, for device(s): evtchn:xenstored
evtchn:xenstored i109 derive     Interrupt 109, for device(s): evtchn:xenstored
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