The reactor design pattern is an event handling pattern for handling service requests delivered concurrently by one or more inputs. The service handler then demultiplexes the incoming requests and dispatches them synchronously to associated request handlers.
单线程模式
1
多线程模式
1:n
主从模式
n:n
netty采用了主从模式
ref：
https://www.cnblogs.com/doit8791/p/7461479.html
https://www.jianshu.com/p/128ddc36e713
https://www.jianshu.com/p/38b56531565d
https://blog.csdn.net/qq924862077/article/details/53316490
高性能io
https://www.cnblogs.com/fanzhidongyzby/p/4098546.html
https://www.jianshu.com/p/2965fca6bb8f
https://mp.weixin.qq.com/s/L5UJhJqquM7OQYFu648JSw