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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
bcm2708_fb dma i16 derive     Interrupt 16, for device(s): bcm2708_fb dma
DMA IRQ i20 derive     Interrupt 20, for device(s): DMA IRQ
serial i29 derive     Interrupt 29, for device(s): serial
31 i31 derive      
dwc_otg, dwc_otg_pcd, dwc_otg_hcd:usb1 i32 derive     Interrupt 32, for device(s): dwc_otg, dwc_otg_pcd, dwc_otg_hcd:usb1
3f200000.gpio:bank0 i49 derive     Interrupt 49, for device(s): 3f200000.gpio:bank0
3f200000.gpio:bank1 i50 derive     Interrupt 50, for device(s): 3f200000.gpio:bank1
3f00b880.mailbox i65 derive     Interrupt 65, for device(s): 3f00b880.mailbox
VCHIQ doorbell i66 derive     Interrupt 66, for device(s): VCHIQ doorbell
75 i75 derive      
DMA IRQ i77 derive     Interrupt 77, for device(s): DMA IRQ
3f804000.i2c i79 derive     Interrupt 79, for device(s): 3f804000.i2c
mmc0 i82 derive     Interrupt 82, for device(s): mmc0
uart-pl011 i83 derive     Interrupt 83, for device(s): uart-pl011
mmc1 i84 derive     Interrupt 84, for device(s): mmc1
arch_timer i96 derive     Interrupt 96, for device(s): arch_timer
arch_timer i97 derive     Interrupt 97, for device(s): arch_timer
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
Single function call interrupts iIPI4 derive     Interrupt IPI4, for device(s): Single function call interrupts
CPU stop interrupts iIPI5 derive     Interrupt IPI5, for device(s): CPU stop interrupts
IRQ work interrupts iIPI6 derive     Interrupt IPI6, for device(s): IRQ work interrupts
completion interrupts iIPI7 derive     Interrupt IPI7, for device(s): completion interrupts
Err iErr derive