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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]	i2	derive			Interrupt 2, for device(s): 3f00b880.mailbox [1]
VCHIQ doorbell [2]	i3	derive			Interrupt 3, for device(s): VCHIQ doorbell [2]
dwc_otg_sim-fiq [41]	i51	derive			Interrupt 51, for device(s): dwc_otg_sim-fiq [41]
bcm2708_fb DMA [48]	i58	derive			Interrupt 58, for device(s): bcm2708_fb DMA [48]
DMA IRQ [50]	i60	derive			Interrupt 60, for device(s): DMA IRQ [50]
DMA IRQ [52]	i62	derive			Interrupt 62, for device(s): DMA IRQ [52]
DMA IRQ [53]	i63	derive			Interrupt 63, for device(s): DMA IRQ [53]
dwc_otg, dwc_otg_pcd, dwc_otg_hcd:usb1 [64]	i74	derive			Interrupt 74, for device(s): dwc_otg, dwc_otg_pcd, dwc_otg_hcd:usb1 [64]
3f804000.i2c [85]	i95	derive			Interrupt 95, for device(s): 3f804000.i2c [85]
3f204000.spi [86]	i96	derive			Interrupt 96, for device(s): 3f204000.spi [86]
mmc0 [88]	i98	derive			Interrupt 98, for device(s): mmc0 [88]
uart-pl011 [89]	i99	derive			Interrupt 99, for device(s): uart-pl011 [89]
arch_timer [1]	i180	derive			Interrupt 180, for device(s): arch_timer [1]
kvm guest vtimer [3]	i181	derive			Interrupt 181, for device(s): kvm guest vtimer [3]
arm-pmu [9]	i183	derive			Interrupt 183, for device(s): arm-pmu [9]
-phy usb-001:003:01 [0]	i184	derive			Interrupt 184, for device(s): -phy usb-001:003:01 [0]
Rescheduling interrupts	iIPI0	derive			Interrupt IPI0, for device(s): Rescheduling interrupts
Function call interrupts	iIPI1	derive			Interrupt IPI1, for device(s): Function call interrupts
CPU stop interrupts	iIPI2	derive			Interrupt IPI2, for device(s): CPU stop interrupts
CPU stop (for crash dump) interrupts	iIPI3	derive			Interrupt IPI3, for device(s): CPU stop (for crash dump) interrupts
Timer broadcast interrupts	iIPI4	derive			Interrupt IPI4, for device(s): Timer broadcast interrupts
IRQ work interrupts	iIPI5	derive			Interrupt IPI5, for device(s): IRQ work interrupts
CPU wake-up interrupts	iIPI6	derive			Interrupt IPI6, for device(s): CPU wake-up interrupts
Err	iErr	derive