vmstat 参考: http://www.ha97.com/4512.html https://www.cnblogs.com/ggjucheng/archive/2012/01/05/2312625.html sar 参考: http://linuxtools-rst.readthedocs.io/zh_CN/latest/tool/sar.html iostat top http://www.cnblogs.com/peida/archive/2012/12/24/2831353.html htop