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 |
| 3 |
i3 |
derive |
|
|
|
| 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 |
| i801_smbus |
i16 |
derive |
|
|
Interrupt 16, for device(s): i801_smbus |
| PCIe PME |
i24 |
derive |
|
|
Interrupt 24, for device(s): PCIe PME |
| PCIe PME |
i25 |
derive |
|
|
Interrupt 25, for device(s): PCIe PME |
| PCIe PME, pciehp |
i26 |
derive |
|
|
Interrupt 26, for device(s): PCIe PME, pciehp |
| PCIe PME |
i27 |
derive |
|
|
Interrupt 27, for device(s): PCIe PME |
| PCIe PME |
i28 |
derive |
|
|
Interrupt 28, for device(s): PCIe PME |
| xhci_hcd |
i29 |
derive |
|
|
Interrupt 29, for device(s): xhci_hcd |
| enp5s0 |
i30 |
derive |
|
|
Interrupt 30, for device(s): enp5s0 |
| enp5s0-TxRx-0 |
i31 |
derive |
|
|
Interrupt 31, for device(s): enp5s0-TxRx-0 |
| enp5s0-TxRx-1 |
i32 |
derive |
|
|
Interrupt 32, for device(s): enp5s0-TxRx-1 |
| enp5s0-TxRx-2 |
i33 |
derive |
|
|
Interrupt 33, for device(s): enp5s0-TxRx-2 |
| enp5s0-TxRx-3 |
i34 |
derive |
|
|
Interrupt 34, for device(s): enp5s0-TxRx-3 |
| 0000:00:17.0 |
i35 |
derive |
|
|
Interrupt 35, for device(s): 0000:00:17.0 |
| mei_me |
i36 |
derive |
|
|
Interrupt 36, for device(s): mei_me |
| dmar2 |
i56 |
derive |
|
|
Interrupt 56, for device(s): dmar2 |
| dmar1 |
i57 |
derive |
|
|
Interrupt 57, for device(s): dmar1 |
| dmar0 |
i58 |
derive |
|
|
Interrupt 58, for device(s): dmar0 |
| dmar3 |
i59 |
derive |
|
|
Interrupt 59, for device(s): dmar3 |
| 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 |
| 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 |
