ifstat的安装使用：
wget http://distfiles.macports.org/ifstat/ifstat-1.1.tar.gz tar xzvf ifstat-1.1.tar.gz cd ifstat-1.1 ./configure make make install
安装iostat
sysstat 使用yum安装 #yum install sysstat
iftop安装
yum install flex byacc libpcap ncurses ncurses-devel libpcap-devel wget http://www.ex-parrot.com/pdw/iftop/download/iftop-0.17.tar.gz tar zxvf iftop-0.17.tar.gz cd iftop-0.17 ./configure make && make install