使用系统命令top即可看到如下类似信息:Cpu(s): 0.0%us, 0.5%sy, 0.0%ni, 99.5%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st但不知什么含义?google之I try to explain these:us: is meaning of "user CPU time"sy: is meani ... ...
如何更改源可以在软件更新中选择源使用如下命令更改(修改前先备份):sudo vim /etc/apt/source.list东北大学deb-src http://mirror.neu.edu.cn/ubuntu/ xenial main restricted #Added by software-propertiesdeb htt ... ...