【机器性能】TOP命令详解
参考wiki:https://www.cnblogs.com/fuqu/p/10230385.html
机器负载参考:https://www.cnblogs.com/MyOnlyBook/p/9610111.html
cpu的load解释:http://www.blogjava.net/cenwenchu/archive/2008/06/30/211712.html
cpu负载:https://blog.csdn.net/jackliu16/article/details/79382993