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 |
| serial |
i4 |
derive |
|
|
Interrupt 4, for device(s): serial |
| floppy |
i6 |
derive |
|
|
Interrupt 6, for device(s): floppy |
| 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 |
| 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 |
| xenbus |
i60 |
derive |
|
|
Interrupt 60, for device(s): xenbus |
| eth0 |
i61 |
derive |
|
|
Interrupt 61, for device(s): eth0 |
| blkif |
i62 |
derive |
|
|
Interrupt 62, 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 |
