首先安装第三方yum源
yum -y install wget
wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo
更新yum源
yum makecache
安装nmon
yum -y install nmon
打开nmon
nmon
link：https://blog.csdn.net/weixin_42612178/article/details/115801519
yum -y install wget
wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo
yum makecache
yum -y install nmon
nmon
link：https://blog.csdn.net/weixin_42612178/article/details/115801519