Service graphs
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 | Warn | Crit | Info |
---|---|---|---|---|---|
bcm2708_fb dma | i16 | derive | Interrupt 16, for device(s): bcm2708_fb dma | ||
DMA IRQ | i24 | derive | Interrupt 24, for device(s): DMA IRQ | ||
DMA IRQ | i25 | derive | Interrupt 25, for device(s): DMA IRQ | ||
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 | ||
BCM2708 GPIO catchall handler | i52 | derive | Interrupt 52, for device(s): BCM2708 GPIO catchall handler | ||
ARM Mailbox IRQ | i65 | derive | Interrupt 65, for device(s): ARM Mailbox IRQ | ||
VCHIQ doorbell | i66 | derive | Interrupt 66, for device(s): VCHIQ doorbell | ||
75 | i75 | derive | |||
bcm2708_i2c.1 | i79 | derive | Interrupt 79, for device(s): bcm2708_i2c.1 | ||
bcm2708_spi.0 | i80 | derive | Interrupt 80, for device(s): bcm2708_spi.0 | ||
mmc0 | i84 | derive | Interrupt 84, for device(s): mmc0 | ||
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 |