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 |
| cascade |
i2 |
derive |
|
|
Interrupt 2, for device(s): cascade |
| 8-edge rtc0 |
i8 |
derive |
|
|
Interrupt 8, for device(s): 8-edge rtc0 |
| 12-edge i8042 |
i12 |
derive |
|
|
Interrupt 12, for device(s): 12-edge i8042 |
| 16-fasteoi uhci_hcd:usb1 |
i16 |
derive |
|
|
Interrupt 16, for device(s): 16-fasteoi uhci_hcd:usb1 |
| 18 |
i18 |
derive |
|
|
Interrupt 18, for device(s): 18-fasteoi uhci_hcd:usb6, i801_smbus, ehci_hcd:usb7 |
| 19-fasteoi uhci_hcd:usb3, uhci_hcd:usb5 |
i19 |
derive |
|
|
Interrupt 19, for device(s): 19-fasteoi uhci_hcd:usb3, uhci_hcd:usb5 |
| 21-fasteoi uhci_hcd:usb2 |
i21 |
derive |
|
|
Interrupt 21, for device(s): 21-fasteoi uhci_hcd:usb2 |
| 23-fasteoi uhci_hcd:usb4, ehci_hcd:usb8 |
i23 |
derive |
|
|
Interrupt 23, for device(s): 23-fasteoi uhci_hcd:usb4, ehci_hcd:usb8 |
| 16384-edge PCIe PME |
i24 |
derive |
|
|
Interrupt 24, for device(s): 16384-edge PCIe PME |
| 32768-edge PCIe PME |
i25 |
derive |
|
|
Interrupt 25, for device(s): 32768-edge PCIe PME |
| 49152-edge PCIe PME |
i26 |
derive |
|
|
Interrupt 26, for device(s): 49152-edge PCIe PME |
| 114688-edge PCIe PME |
i27 |
derive |
|
|
Interrupt 27, for device(s): 114688-edge PCIe PME |
| 147456-edge PCIe PME |
i28 |
derive |
|
|
Interrupt 28, for device(s): 147456-edge PCIe PME |
| 524288-edge eth0-rx-0 |
i29 |
derive |
|
|
Interrupt 29, for device(s): 524288-edge eth0-rx-0 |
| 524289-edge eth0-tx-0 |
i30 |
derive |
|
|
Interrupt 30, for device(s): 524289-edge eth0-tx-0 |
| 524290-edge eth0 |
i31 |
derive |
|
|
Interrupt 31, for device(s): 524290-edge eth0 |
| 512000-edge ahci[0000:00:1f.2] |
i32 |
derive |
|
|
Interrupt 32, for device(s): 512000-edge ahci[0000:00:1f.2] |
| 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 |
