java - What is the difference between thread per connection vs thread per request? - Stack Overflow
https://stackoverflow.com/questions/15217524/what-is-the-difference-between-thread-per-connection-vs-thread-per-request
Comet (programming) - Wikipedia
https://en.wikipedia.org/wiki/Comet_%28programming%29
闲谈Tomcat性能优化 - 上校 - 博客园
http://www.cnblogs.com/zhuawang/p/5213192.html
Tomcat 7优化前及优化后的性能对比 - Tomcat - 服务器软件 - 深度开源
https://www.open-open.com/lib/view/open1401931407228.html
tomcat 性能优化 - ggjucheng - 博客园
http://www.cnblogs.com/ggjucheng/archive/2013/04/16/3024731.html
Mysql源码学习——Connection Manager - 心中无码 - 博客园
http://www.cnblogs.com/nocode/archive/2011/08/21/2147781.html
如何优化tomcat配置(从内存、并发、缓存4个方面)优化 - centre10的专栏 - CSDN博客
https://blog.csdn.net/centre10/article/details/50639693
tomcat常用配置详解和优化方法 - xuwc - 博客园
https://www.cnblogs.com/xuwc/p/8523681.html
Tomcat 服务器性能优化_百度经验
https://jingyan.baidu.com/article/7f41ececf6b34d593d095cad.html
tomcat one connection one thread one request one thread
原文：https://www.cnblogs.com/rgqancy/p/10443272.html