I'm busy evaluating Kryonet, but I noticed that it doesn't yet incorporate the officially recommended workaround for the NIO select spin bug. Kryonet currently just adds an extra sleep.

Other projects such as Netty, MINA and Grizzly have all added this workaround.

Please see: netty/netty#327
and
https://github.com/netty/netty/blob/a61403de535a662fec31258ab81a3c3451a737b8/src/main/java/org/jboss/netty/channel/socket/nio/AbstractNioWorker.java

Could you please add the workaround to Kryonet too.