I have a set of experiments with distributed environments.
I am planning to present a total network I/O bytes usage of the system for each run.
Which one should I report as total network I/O bytes among Sum(InBound Traffic) or Sum(InBound Traffic + OutBound Traffic)?
For example, say there are two machines A and B in my cluster server.
A sends 10 bytes to B.
B sends 15 bytes to A.
What is the total network I/O bytes? Is it 25 or 50 bytes?