A simple tool to test, analyze and benchmark TCP connections used together with splice(2). At the time the tool was created, I was working on:

• TSO/LRO offload implementation
• NAS type functionality under Linux/ARM, using zero copy/Samba4

Many things missing (like proper command line options and documentation...). The server can either loopback data to the client (used for TSO/LRO validation) or write it to disk (used to benchmark NAS functionality).