Why Netty use boss and work eventloop rather than one eventloop -

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i've question netty. seems use boss eventloop keep accepting connection, , worker eventloop keep doing data i/o.

the source code showed 1 eventloop repeat calling select/poll/epoll. there more 1 eventloop burning cpu. why can't netty use 1 eventloop handle both server listen socket , accepted socket?

there architecture called seda. benefit of boss eventloop : thread used accept connection not blocked io threads used read data socket , work in handler. use executionhandler eventloop. netty changing , improving thread modeling. , changed lot in netty 4.


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