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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
2000b880.mailbox [1] i17 derive     Interrupt 17, for device(s): 2000b880.mailbox [1]
VCHIQ doorbell [2] i18 derive     Interrupt 18, for device(s): VCHIQ doorbell [2]
timer [35] i27 derive     Interrupt 27, for device(s): timer [35]
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]
bcm2835-auxirq [61] i53 derive     Interrupt 53, for device(s): bcm2835-auxirq [61]
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]
20200000.gpio:bank0 [81] i73 derive     Interrupt 73, for device(s): 20200000.gpio:bank0 [81]
20200000.gpio:bank1 [82] i74 derive     Interrupt 74, for device(s): 20200000.gpio:bank1 [82]
20804000.i2c [85] i77 derive     Interrupt 77, for device(s): 20804000.i2c [85]
mmc0 [88] i80 derive     Interrupt 80, for device(s): mmc0 [88]
uart-pl011 [89] i81 derive     Interrupt 81, for device(s): uart-pl011 [89]
FIQ iFIQ derive      
Err iErr derive