msgpack-rpc & netty 4.0

i tried reactor from spring a bit more, doesn’t seem to provide too much, and some overhead exists over netty. now that netty 4.0 getting more & more adoption, it’s interesting just to see whether msgpack-rpc could be updated (current netty 3.x) the major benefits are: performance, esp. less GC overhead, compared with netty 3.x…