Scott Reeves demonstrates the flow graph feature of the Wireshark tool, which can help you check connections between client server, finding timeouts, re-transmitted frames, or dropped connections.

Using the Intel® Advisor Flow Graph Analyzer (FGA), an application such as those that are needed for autonomous driving can be developed and implemented using very high performing underlying software ...

In particular, the flow graph interface, which was introduced into Intel TBB 4.0 in 2011, helps to create scalable applications that exploit higher levels of parallelism in a much more manageable way.