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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
i8042 i1 derive     Interrupt 1, for device(s): i8042
3 i3 derive      
serial i4 derive     Interrupt 4, 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
ehci_hcd:usb1, uhci_hcd:usb2 i17 derive     Interrupt 17, for device(s): ehci_hcd:usb1, uhci_hcd:usb2
uhci_hcd:usb4, arcmsr, radeon i18 derive     Interrupt 18, for device(s): uhci_hcd:usb4, arcmsr, radeon
uhci_hcd:usb3 i19 derive     Interrupt 19, for device(s): uhci_hcd:usb3
timer0 i296 derive     Interrupt 296, for device(s): timer0
resched0 i297 derive     Interrupt 297, for device(s): resched0
callfunc0 i298 derive     Interrupt 298, for device(s): callfunc0
debug0 i299 derive     Interrupt 299, for device(s): debug0
callfuncsingle0 i300 derive     Interrupt 300, for device(s): callfuncsingle0
timer1 i301 derive     Interrupt 301, for device(s): timer1
resched1 i302 derive     Interrupt 302, for device(s): resched1
callfunc1 i303 derive     Interrupt 303, for device(s): callfunc1
debug1 i304 derive     Interrupt 304, for device(s): debug1
callfuncsingle1 i305 derive     Interrupt 305, for device(s): callfuncsingle1
timer2 i306 derive     Interrupt 306, for device(s): timer2
resched2 i307 derive     Interrupt 307, for device(s): resched2
callfunc2 i308 derive     Interrupt 308, for device(s): callfunc2
debug2 i309 derive     Interrupt 309, for device(s): debug2
callfuncsingle2 i310 derive     Interrupt 310, for device(s): callfuncsingle2
timer3 i311 derive     Interrupt 311, for device(s): timer3
resched3 i312 derive     Interrupt 312, for device(s): resched3
callfunc3 i313 derive     Interrupt 313, for device(s): callfunc3
debug3 i314 derive     Interrupt 314, for device(s): debug3
callfuncsingle3 i315 derive     Interrupt 315, for device(s): callfuncsingle3
timer4 i316 derive     Interrupt 316, for device(s): timer4
resched4 i317 derive     Interrupt 317, for device(s): resched4
callfunc4 i318 derive     Interrupt 318, for device(s): callfunc4
debug4 i319 derive     Interrupt 319, for device(s): debug4
callfuncsingle4 i320 derive     Interrupt 320, for device(s): callfuncsingle4
timer5 i321 derive     Interrupt 321, for device(s): timer5
resched5 i322 derive     Interrupt 322, for device(s): resched5
callfunc5 i323 derive     Interrupt 323, for device(s): callfunc5
debug5 i324 derive     Interrupt 324, for device(s): debug5
callfuncsingle5 i325 derive     Interrupt 325, for device(s): callfuncsingle5
timer6 i326 derive     Interrupt 326, for device(s): timer6
resched6 i327 derive     Interrupt 327, for device(s): resched6
callfunc6 i328 derive     Interrupt 328, for device(s): callfunc6
debug6 i329 derive     Interrupt 329, for device(s): debug6
callfuncsingle6 i330 derive     Interrupt 330, for device(s): callfuncsingle6
timer7 i331 derive     Interrupt 331, for device(s): timer7
resched7 i332 derive     Interrupt 332, for device(s): resched7
callfunc7 i333 derive     Interrupt 333, for device(s): callfunc7
debug7 i334 derive     Interrupt 334, for device(s): debug7
callfuncsingle7 i335 derive     Interrupt 335, for device(s): callfuncsingle7
xenbus i336 derive     Interrupt 336, for device(s): xenbus
eth0 i338 derive     Interrupt 338, for device(s): eth0
eth1 i339 derive     Interrupt 339, for device(s): eth1
ioat-msi i340 derive     Interrupt 340, for device(s): ioat-msi
evtchn:xenstored i341 derive     Interrupt 341, for device(s): evtchn:xenstored
evtchn:xenstored i342 derive     Interrupt 342, for device(s): evtchn:xenstored
evtchn:xenstored i382 derive     Interrupt 382, for device(s): evtchn:xenstored
evtchn:xenconsoled i383 derive     Interrupt 383, for device(s): evtchn:xenconsoled
blkif-backend i384 derive     Interrupt 384, for device(s): blkif-backend
vif35.0 i385 derive     Interrupt 385, for device(s): vif35.0
blkif-backend i386 derive     Interrupt 386, for device(s): blkif-backend
blkif-backend i387 derive     Interrupt 387, for device(s): blkif-backend
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
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