Ethernet Dropouts

On the Xavier, we are running a Ubuntu/ROS system with relatively heavy USB traffic (6 cameras) and moderate ethernet traffic (2 lidars). Data is directly stored to disk. We are using power mode 0, and for most of the time the system works fine, with an average CPU load of 45% on all CPUs. However, about once in an hour, CPU0 peaks to 100%, causing ethernet dropouts for a few seconds, sometimes even up to 30 seconds. The CPU seems to peak before the dropouts. In heavy cases, also the USB traffic drops. We can reproduce this behavior to occur very frequently when utilizing a different, weaker Xavier power mode, mode 6 (2 CPUs), suggesting that even in the strong power mode some process, sometimes, takes all the resources. The question: does anyone have an idea if there is a system process that could cause such behaviour? Or is it possible that the Xavier temporarily drops into a lower state, e.g. for temperature reasons?

There is no update from you for a period, assuming this is not an issue any more.
Hence we are closing this topic. If need further support, please open a new one.


It is possible to check the “top” or /proc/interrupts to see what might be the cause?