Service graphs

daily graph weekly graph
monthly graph yearly graph

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 Timer Tick i3 derive     Interrupt 3, for device(s): BCM2708 Timer Tick
bcm2708_fb dma i16 derive     Interrupt 16, for device(s): bcm2708_fb dma
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_sdhci (dma) i77 derive     Interrupt 77, for device(s): bcm2708_sdhci (dma)
uart-pl011 i83 derive     Interrupt 83, for device(s): uart-pl011
mmc0 i84 derive     Interrupt 84, for device(s): mmc0
gpiolib i172 derive     Interrupt 172, for device(s): gpiolib
gpiolib i188 derive     Interrupt 188, for device(s): gpiolib
FIQ iFIQ derive      
Err iErr derive