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 |
i3 |
derive |
|
|
Interrupt 3, for device(s): serial |
| 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 |
| megasas |
i16 |
derive |
|
|
Interrupt 16, for device(s): megasas |
| parport0, parport1 |
i17 |
derive |
|
|
Interrupt 17, for device(s): parport0, parport1 |
| uhci_hcd:usb2, uhci_hcd:usb5 |
i20 |
derive |
|
|
Interrupt 20, for device(s): uhci_hcd:usb2, uhci_hcd:usb5 |
| uhci_hcd:usb1, ehci_hcd:usb3, uhci_hcd:usb4 |
i21 |
derive |
|
|
Interrupt 21, for device(s): uhci_hcd:usb1, ehci_hcd:usb3, uhci_hcd:usb4 |
| PCIe PME |
i40 |
derive |
|
|
Interrupt 40, for device(s): PCIe PME |
| PCIe PME |
i41 |
derive |
|
|
Interrupt 41, for device(s): PCIe PME |
| PCIe PME |
i42 |
derive |
|
|
Interrupt 42, for device(s): PCIe PME |
| PCIe PME |
i43 |
derive |
|
|
Interrupt 43, for device(s): PCIe PME |
| PCIe PME |
i44 |
derive |
|
|
Interrupt 44, for device(s): PCIe PME |
| PCIe PME |
i45 |
derive |
|
|
Interrupt 45, for device(s): PCIe PME |
| PCIe PME |
i46 |
derive |
|
|
Interrupt 46, for device(s): PCIe PME |
| eth0 |
i47 |
derive |
|
|
Interrupt 47, for device(s): eth0 |
| 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 |
| 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 |
|
|
|
