you should probably look at 2.2.5 docs anyway
BTW: This project here: http://lse.sourceforge.net/io/aio.html
isn't the same thing as libaio.
libaio is a kernel project, and I don't think there's a specific libaio project. You will just find information about the kernel itself.
Which we have implemented a JNI library for libaio.
Netty is really fast about managing sockets, and the JDK should be using native functions properly underneath it. We may implement additional options in a near future for faster performance.
BTW: you used the wrong forum. You should be using the hornetq's user's forum. which I will move your message there.