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 |
cascade |
i2 |
derive |
|
|
Interrupt 2, for device(s): cascade |
ohci_hcd:usb2, sata_nv |
i5 |
derive |
|
|
Interrupt 5, for device(s): ohci_hcd:usb2, sata_nv |
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 |
ehci_hcd:usb1, nvkm |
i11 |
derive |
|
|
Interrupt 11, for device(s): ehci_hcd:usb1, nvkm |
pata_amd |
i14 |
derive |
|
|
Interrupt 14, for device(s): pata_amd |
pata_amd |
i15 |
derive |
|
|
Interrupt 15, for device(s): pata_amd |
114688-edge eth0 |
i16 |
derive |
|
|
Interrupt 16, for device(s): 114688-edge 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 |
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 |