https://wiki.swoole.com/wiki/diff/?id=1018&version=1&compare=current
*** Swoole协程与Go协程的区别，很详细，很牛逼 https://zhuanlan.zhihu.com/p/93141701
**** Server-side I/O Performance: Node vs. PHP vs. Java vs. Go https://www.toptal.com/back-end/server-side-io-performance-node-php-java-go
