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 | Warning | Critical | 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:usb1, uhci_hcd:usb6, i801_smbus | ||
17-fasteoi uhci_hcd:usb3, uhci_hcd:usb7 | i17 | derive | Interrupt 17, for device(s): 17-fasteoi uhci_hcd:usb3, 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:usb2, ehci_hcd:usb4 | i19 | derive | Interrupt 19, for device(s): 19-fasteoi ehci_hcd:usb2, ehci_hcd:usb4 | ||
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 ahci[0000:00:1f.2] | i28 | derive | Interrupt 28, for device(s): 0-edge ahci[0000:00:1f.2] | ||
0-edge virtio3-config | i29 | derive | Interrupt 29, for device(s): 0-edge virtio3-config | ||
1-edge virtio3-control | i30 | derive | Interrupt 30, for device(s): 1-edge virtio3-control | ||
2-edge virtio3-event | i31 | derive | Interrupt 31, for device(s): 2-edge virtio3-event | ||
3-edge virtio3-request | i32 | derive | Interrupt 32, for device(s): 3-edge virtio3-request | ||
0-edge virtio4-config | i33 | derive | Interrupt 33, for device(s): 0-edge virtio4-config | ||
1-edge virtio4-control | i34 | derive | Interrupt 34, for device(s): 1-edge virtio4-control | ||
2-edge virtio4-event | i35 | derive | Interrupt 35, for device(s): 2-edge virtio4-event | ||
3-edge virtio4-request | i36 | derive | Interrupt 36, for device(s): 3-edge virtio4-request | ||
0-edge virtio1-config | i37 | derive | Interrupt 37, for device(s): 0-edge virtio1-config | ||
1-edge virtio1-virtqueues | i38 | derive | Interrupt 38, for device(s): 1-edge virtio1-virtqueues | ||
0-edge virtio2-config | i39 | derive | Interrupt 39, for device(s): 0-edge virtio2-config | ||
1-edge virtio2-input.0 | i40 | derive | Interrupt 40, for device(s): 1-edge virtio2-input.0 | ||
2-edge virtio2-output.0 | i41 | derive | Interrupt 41, for device(s): 2-edge virtio2-output.0 | ||
0-edge snd_hda_intel:card0 | i42 | derive | Interrupt 42, 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 | ||
Posted MSI notification event | iPMN | derive | Interrupt PMN, for device(s): Posted MSI notification event |