EPOLL AND Nonblocking I/O

https://medium.com/@copyconstruct/nonblocking-i-o-99948ad7c957

https://idndx.com/2014/09/02/the-implementation-of-epoll-2/

https://blog.csdn.net/zhangskd/article/details/45787989

高性能网络编程3----TCP消息的接收

https://blog.csdn.net/russell_tao/article/details/9950615

https://ylgrgyq.github.io/2017/08/01/linux-receive-packet-3/

http://linux-kernel.2935.n7.nabble.com/TCP-prequeue-performance-td13885.html

linux 内核tcp接收数据的实现

https://blog.packagecloud.io/eng/2016/06/22/monitoring-tuning-linux-networking-stack-receiving-data/

https://blog.packagecloud.io/eng/2016/10/11/monitoring-tuning-linux-networking-stack-receiving-data-illustrated/

http://www.cnhalo.net/2016/06/13/linux-tcp-establish/

http://www.cppblog.com/fwxjj/archive/2013/02/18/197906.aspx

https://www.codeblogbt.com/archives/460207

https://medium.com/@copyconstruct/the-method-to-epolls-madness-d9d2d6378642

https://www.codeblogbt.com/archives/460207

https://idea.popcount.org/2017-02-20-epoll-is-fundamentally-broken-12/

https://idea.popcount.org/2017-03-20-epoll-is-fundamentally-broken-22/

https://github.com/torvalds/linux/blob/master/Documentation/networking/scaling.txt