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 |
| xenbus |
i84 |
derive |
|
|
Interrupt 84, for device(s): xenbus |
| hvc_console |
i85 |
derive |
|
|
Interrupt 85, for device(s): hvc_console |
| blkif |
i86 |
derive |
|
|
Interrupt 86, for device(s): blkif |
| blkif |
i87 |
derive |
|
|
Interrupt 87, for device(s): blkif |
| eth0-tx |
i88 |
derive |
|
|
Interrupt 88, for device(s): eth0-tx |
| eth0-rx |
i89 |
derive |
|
|
Interrupt 89, for device(s): eth0-rx |
| eth1-tx |
i90 |
derive |
|
|
Interrupt 90, for device(s): eth1-tx |
| eth1-rx |
i91 |
derive |
|
|
Interrupt 91, for device(s): eth1-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 |
| 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 |
| Posted-interrupt wakeup event |
iPIW |
derive |
|
|
Interrupt PIW, for device(s): Posted-interrupt wakeup event |
