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 |
timer0 |
i0 |
derive |
|
|
Interrupt 0, for device(s): timer0 |
spinlock0 |
i1 |
derive |
|
|
Interrupt 1, for device(s): spinlock0 |
resched0 |
i2 |
derive |
|
|
Interrupt 2, for device(s): resched0 |
callfunc0 |
i3 |
derive |
|
|
Interrupt 3, for device(s): callfunc0 |
debug0 |
i4 |
derive |
|
|
Interrupt 4, for device(s): debug0 |
callfuncsingle0 |
i5 |
derive |
|
|
Interrupt 5, for device(s): callfuncsingle0 |
irqwork0 |
i6 |
derive |
|
|
Interrupt 6, for device(s): irqwork0 |
timer1 |
i7 |
derive |
|
|
Interrupt 7, for device(s): timer1 |
resched1 |
i8 |
derive |
|
|
Interrupt 8, for device(s): resched1 |
callfunc1 |
i9 |
derive |
|
|
Interrupt 9, for device(s): callfunc1 |
debug1 |
i10 |
derive |
|
|
Interrupt 10, for device(s): debug1 |
callfuncsingle1 |
i11 |
derive |
|
|
Interrupt 11, for device(s): callfuncsingle1 |
irqwork1 |
i12 |
derive |
|
|
Interrupt 12, for device(s): irqwork1 |
spinlock1 |
i13 |
derive |
|
|
Interrupt 13, for device(s): spinlock1 |
timer2 |
i14 |
derive |
|
|
Interrupt 14, for device(s): timer2 |
resched2 |
i15 |
derive |
|
|
Interrupt 15, for device(s): resched2 |
callfunc2 |
i16 |
derive |
|
|
Interrupt 16, for device(s): callfunc2 |
debug2 |
i17 |
derive |
|
|
Interrupt 17, for device(s): debug2 |
callfuncsingle2 |
i18 |
derive |
|
|
Interrupt 18, for device(s): callfuncsingle2 |
irqwork2 |
i19 |
derive |
|
|
Interrupt 19, for device(s): irqwork2 |
spinlock2 |
i20 |
derive |
|
|
Interrupt 20, for device(s): spinlock2 |
timer3 |
i21 |
derive |
|
|
Interrupt 21, for device(s): timer3 |
resched3 |
i22 |
derive |
|
|
Interrupt 22, for device(s): resched3 |
callfunc3 |
i23 |
derive |
|
|
Interrupt 23, for device(s): callfunc3 |
debug3 |
i24 |
derive |
|
|
Interrupt 24, for device(s): debug3 |
callfuncsingle3 |
i25 |
derive |
|
|
Interrupt 25, for device(s): callfuncsingle3 |
irqwork3 |
i26 |
derive |
|
|
Interrupt 26, for device(s): irqwork3 |
spinlock3 |
i27 |
derive |
|
|
Interrupt 27, for device(s): spinlock3 |
xenbus |
i28 |
derive |
|
|
Interrupt 28, for device(s): xenbus |
hvc_console |
i29 |
derive |
|
|
Interrupt 29, for device(s): hvc_console |
blkif |
i30 |
derive |
|
|
Interrupt 30, for device(s): blkif |
blkif |
i31 |
derive |
|
|
Interrupt 31, for device(s): blkif |
blkif |
i32 |
derive |
|
|
Interrupt 32, for device(s): blkif |
blkif |
i33 |
derive |
|
|
Interrupt 33, for device(s): blkif |
eth0-q0-tx |
i34 |
derive |
|
|
Interrupt 34, for device(s): eth0-q0-tx |
eth0-q0-rx |
i35 |
derive |
|
|
Interrupt 35, for device(s): eth0-q0-rx |
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 |
Posted-interrupt wakeup event |
iPIW |
derive |
|
|
Interrupt PIW, for device(s): Posted-interrupt wakeup event |