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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
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]
DMA IRQ [53]	i78	derive			Interrupt 78, for device(s): DMA IRQ [53]
DMA IRQ [56]	i81	derive			Interrupt 81, for device(s): DMA IRQ [56]
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]
3f804000.i2c [85]	i110	derive			Interrupt 110, for device(s): 3f804000.i2c [85]
3f204000.spi [86]	i111	derive			Interrupt 111, for device(s): 3f204000.spi [86]
mmc0 [88]	i113	derive			Interrupt 113, for device(s): mmc0 [88]
uart-pl011 [89]	i114	derive			Interrupt 114, for device(s): uart-pl011 [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]
-phy usb-001:003:01 [0]	i199	derive			Interrupt 199, for device(s): -phy usb-001:003:01 [0]
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