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-edge i8042 |
i1 |
derive |
|
|
Interrupt 1, for device(s): 1-edge i8042 |
| 4-edge ttyS0 |
i4 |
derive |
|
|
Interrupt 4, for device(s): 4-edge ttyS0 |
| 8-edge rtc0 |
i8 |
derive |
|
|
Interrupt 8, for device(s): 8-edge rtc0 |
| 9-fasteoi acpi |
i9 |
derive |
|
|
Interrupt 9, for device(s): 9-fasteoi acpi |
| 12-edge i8042 |
i12 |
derive |
|
|
Interrupt 12, for device(s): 12-edge i8042 |
| 16 |
i16 |
derive |
|
|
Interrupt 16, for device(s): 16-fasteoi uhci_hcd:usb2, uhci_hcd:usb6, i801_smbus |
| 17-fasteoi uhci_hcd:usb4, uhci_hcd:usb7 |
i17 |
derive |
|
|
Interrupt 17, for device(s): 17-fasteoi uhci_hcd:usb4, uhci_hcd:usb7 |
| 18-fasteoi uhci_hcd:usb5, uhci_hcd:usb8 |
i18 |
derive |
|
|
Interrupt 18, for device(s): 18-fasteoi uhci_hcd:usb5, uhci_hcd:usb8 |
| 19-fasteoi ehci_hcd:usb1, ehci_hcd:usb3 |
i19 |
derive |
|
|
Interrupt 19, for device(s): 19-fasteoi ehci_hcd:usb1, ehci_hcd:usb3 |
| 20-fasteoi virtio0 |
i20 |
derive |
|
|
Interrupt 20, for device(s): 20-fasteoi virtio0 |
| 0-edge PCIe PME, aerdrv |
i24 |
derive |
|
|
Interrupt 24, for device(s): 0-edge PCIe PME, aerdrv |
| 0-edge PCIe PME, aerdrv |
i25 |
derive |
|
|
Interrupt 25, for device(s): 0-edge PCIe PME, aerdrv |
| 0-edge PCIe PME, aerdrv |
i26 |
derive |
|
|
Interrupt 26, for device(s): 0-edge PCIe PME, aerdrv |
| 0-edge PCIe PME, aerdrv |
i27 |
derive |
|
|
Interrupt 27, for device(s): 0-edge PCIe PME, aerdrv |
| 0-edge virtio1-config |
i28 |
derive |
|
|
Interrupt 28, for device(s): 0-edge virtio1-config |
| 1-edge virtio1-virtqueues |
i29 |
derive |
|
|
Interrupt 29, for device(s): 1-edge virtio1-virtqueues |
| 0-edge virtio3-config |
i30 |
derive |
|
|
Interrupt 30, for device(s): 0-edge virtio3-config |
| 1-edge virtio3-control |
i31 |
derive |
|
|
Interrupt 31, for device(s): 1-edge virtio3-control |
| 2-edge virtio3-event |
i32 |
derive |
|
|
Interrupt 32, for device(s): 2-edge virtio3-event |
| 3-edge virtio3-request |
i33 |
derive |
|
|
Interrupt 33, for device(s): 3-edge virtio3-request |
| 4-edge virtio3-request |
i34 |
derive |
|
|
Interrupt 34, for device(s): 4-edge virtio3-request |
| 0-edge virtio2-config |
i35 |
derive |
|
|
Interrupt 35, for device(s): 0-edge virtio2-config |
| 1-edge virtio2-input.0 |
i36 |
derive |
|
|
Interrupt 36, for device(s): 1-edge virtio2-input.0 |
| 2-edge virtio2-output.0 |
i37 |
derive |
|
|
Interrupt 37, for device(s): 2-edge virtio2-output.0 |
| 0-edge ahci[0000:00:1f.2] |
i38 |
derive |
|
|
Interrupt 38, for device(s): 0-edge ahci[0000:00:1f.2] |
| 0-edge snd_hda_intel:card0 |
i39 |
derive |
|
|
Interrupt 39, for device(s): 0-edge snd_hda_intel:card0 |
| 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 |
