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Graph information

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	Warning	Critical	Info
arch_timer [0]	i16	derive			Interrupt 16, for device(s): arch_timer [0]
arch_timer [1]	i17	derive			Interrupt 17, for device(s): arch_timer [1]
arm-pmu [9]	i21	derive			Interrupt 21, for device(s): arm-pmu [9]
3f00b880.mailbox [1]	i23	derive			Interrupt 23, for device(s): 3f00b880.mailbox [1]
VCHIQ doorbell [2]	i24	derive			Interrupt 24, for device(s): VCHIQ doorbell [2]
bcm2708_fb dma [48]	i46	derive			Interrupt 46, for device(s): bcm2708_fb dma [48]
DMA IRQ [50]	i48	derive			Interrupt 48, for device(s): DMA IRQ [50]
DMA IRQ [52]	i50	derive			Interrupt 50, for device(s): DMA IRQ [52]
DMA IRQ [53]	i51	derive			Interrupt 51, for device(s): DMA IRQ [53]
DMA IRQ [56]	i54	derive			Interrupt 54, for device(s): DMA IRQ [56]
DMA IRQ [57]	i55	derive			Interrupt 55, for device(s): DMA IRQ [57]
DMA IRQ [58]	i56	derive			Interrupt 56, for device(s): DMA IRQ [58]
bcm2835-auxirq [61]	i59	derive			Interrupt 59, for device(s): bcm2835-auxirq [61]
dwc_otg, dwc_otg_pcd, dwc_otg_hcd:usb1 [64]	i62	derive			Interrupt 62, for device(s): dwc_otg, dwc_otg_pcd, dwc_otg_hcd:usb1 [64]
3f204000.spi [86]	i84	derive			Interrupt 84, for device(s): 3f204000.spi [86]
mmc0 [88]	i86	derive			Interrupt 86, for device(s): mmc0 [88]
uart-pl011 [89]	i87	derive			Interrupt 87, for device(s): uart-pl011 [89]
mmc1 [94]	i92	derive			Interrupt 92, for device(s): mmc1 [94]
usb-001:005:01 [17]	i169	derive			Interrupt 169, for device(s): usb-001:005:01 [17]
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