How to improve UDP network performance?

Dear Matlab users, greetings to everyone.

I am in the process of doing some data collection and processing over an ethernet network (100 Mbps or possibly 1 Gbps).

I have chosen UDP for having less overhead and for greater portability across different systems.

I would like to process a fixed amount of data in real-time and I was wondering what would give the best results, at first thought, at least:

• matlab script + udp stack
• simulink + udp instrument control toolbox
• simulink + compiled driver that handles the udp message passing

In fact I noticed that even if the master pc is sending data at almost 500 Mbps the simulink process is losing the pace, being able to process just a fraction of the data sent.

Tomorrow I'll try with a matlab script to check if a better performance can be achieved.

If anybody has already conducted a few similar tests and could give some suggestions it would be greatly appreciated.

Thank you and best regards, Giulio