Embedded systems can have very limited resources. Using tools like trace-cmd and KernelShark require writing tracing data to disk and then post processing the data after the trace. But if the embedded device does not have much (or any) disk space, it makes it impossible to do such traces. But trace-cmd has a way to send the trace through the network. This will focus on how it does that, going into some of the low level details and possibly talk about how it does something similar for tracing guests on a host.
Steven Rostedt, Google