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 |
| floppy |
i6 |
derive |
|
|
Interrupt 6, for device(s): floppy |
| parport0 |
i7 |
derive |
|
|
Interrupt 7, for device(s): parport0 |
| rtc0 |
i8 |
derive |
|
|
Interrupt 8, for device(s): rtc0 |
| acpi |
i9 |
derive |
|
|
Interrupt 9, for device(s): acpi |
| uhci_hcd:usb3, pata_jmicron, nvidia |
i16 |
derive |
|
|
Interrupt 16, for device(s): uhci_hcd:usb3, pata_jmicron, nvidia |
| ehci_hcd:usb1, uhci_hcd:usb5, uhci_hcd:usb8 |
i18 |
derive |
|
|
Interrupt 18, for device(s): ehci_hcd:usb1, uhci_hcd:usb5, uhci_hcd:usb8 |
| uhci_hcd:usb7 |
i19 |
derive |
|
|
Interrupt 19, for device(s): uhci_hcd:usb7 |
| uhci_hcd:usb4 |
i21 |
derive |
|
|
Interrupt 21, for device(s): uhci_hcd:usb4 |
| ehci_hcd:usb2, uhci_hcd:usb6 |
i23 |
derive |
|
|
Interrupt 23, for device(s): ehci_hcd:usb2, uhci_hcd:usb6 |
| eth0 |
i44 |
derive |
|
|
Interrupt 44, for device(s): eth0 |
| ahci |
i45 |
derive |
|
|
Interrupt 45, for device(s): ahci |
| snd_hda_intel |
i46 |
derive |
|
|
Interrupt 46, for device(s): snd_hda_intel |
| 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 |
| ERR |
iERR |
derive |
|
|
|
| MIS |
iMIS |
derive |
|
|
|
