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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] i17 derive     Interrupt 17, for device(s): 3f00b880.mailbox [1]
VCHIQ doorbell [2] i18 derive     Interrupt 18, for device(s): VCHIQ doorbell [2]
bcm2708_fb DMA [48] i40 derive     Interrupt 40, for device(s): bcm2708_fb DMA [48]
DMA IRQ [50] i42 derive     Interrupt 42, for device(s): DMA IRQ [50]
DMA IRQ [52] i44 derive     Interrupt 44, for device(s): DMA IRQ [52]
dwc_otg, dwc_otg_pcd, dwc_otg_hcd:usb1 [64] i56 derive     Interrupt 56, for device(s): dwc_otg, dwc_otg_pcd, dwc_otg_hcd:usb1 [64]
mmc0 [88] i80 derive     Interrupt 80, for device(s): mmc0 [88]
mmc1 [94] i86 derive     Interrupt 86, for device(s): mmc1 [94]
arch_timer [0] i161 derive     Interrupt 161, for device(s): arch_timer [0]
arch_timer [1] i162 derive     Interrupt 162, for device(s): arch_timer [1]
arm-pmu [9] i165 derive     Interrupt 165, for device(s): arm-pmu [9]
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