Performance comparison of Thrift, Protocol Buffers, JSON, EJB, other?

Question

We\'re looking into transport/protocol solutions and were about to do various performance tests, so I thought I\'d check with the community if they\'ve already done this:

Answer 1

If the raw net performance is the target, then nothing beats IIOP (see RMI/IIOP). Smallest possible footprint -- only binary data, no markup at all. Serialization/deserialization is very fast too.

Since it's IIOP (that is CORBA), almost all languages have bindings.

But I presume the performance is not the only requirement, right?