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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
3f00b880.mailbox [1] i50 derive     Interrupt 50, for device(s): 3f00b880.mailbox [1]
VCHIQ doorbell [2] i51 derive     Interrupt 51, for device(s): VCHIQ doorbell [2]
bcm2708_fb DMA [48] i73 derive     Interrupt 73, for device(s): bcm2708_fb DMA [48]
DMA IRQ [50] i75 derive     Interrupt 75, for device(s): DMA IRQ [50]
DMA IRQ [52] i77 derive     Interrupt 77, for device(s): DMA IRQ [52]
dwc_otg, dwc_otg_pcd, dwc_otg_hcd:usb1 [64] i89 derive     Interrupt 89, for device(s): dwc_otg, dwc_otg_pcd, dwc_otg_hcd:usb1 [64]
mmc0 [88] i113 derive     Interrupt 113, for device(s): mmc0 [88]
[89] i114 derive     Interrupt 114, for device(s): [89]
mmc1 [94] i119 derive     Interrupt 119, for device(s): mmc1 [94]
arch_timer [0] i194 derive     Interrupt 194, for device(s): arch_timer [0]
arch_timer [1] i195 derive     Interrupt 195, for device(s): arch_timer [1]
arm-pmu [9] i198 derive     Interrupt 198, for device(s): arm-pmu [9]
usb-001:005:01 [17] i199 derive     Interrupt 199, for device(s): usb-001:005:01 [17]
pps@12.-1 [18] i200 derive     Interrupt 200, for device(s): pps@12.-1 [18]
FIQ iFIQ derive      
CPU wakeup interrupts iIPI0 derive     Interrupt IPI0, for device(s): CPU wakeup interrupts
Timer broadcast interrupts iIPI1 derive     Interrupt IPI1, for device(s): Timer broadcast interrupts
Rescheduling interrupts iIPI2 derive     Interrupt IPI2, for device(s): Rescheduling interrupts
Function call interrupts iIPI3 derive     Interrupt IPI3, for device(s): Function call interrupts
CPU stop interrupts iIPI4 derive     Interrupt IPI4, for device(s): CPU stop interrupts
IRQ work interrupts iIPI5 derive     Interrupt IPI5, for device(s): IRQ work interrupts
completion interrupts iIPI6 derive     Interrupt IPI6, for device(s): completion interrupts
Err iErr derive