FastestMirror是类似apt-spy的yum用软件
axel是一个Linux下多线程下载工具

yum -y install yum-fastestmirror
wget http://alioth.debian.org/frs/download.php/3015/axel-2.4.tar.gz
tar jxvf axel-2.2.tar.bz2
cd axel-2.2
./configure
make && make install
svn co http://cnfreesoft.googlecode.com/svn/trunk/axelget/ /etc/yum/axelget
cd /etc/yum/pluginconf.d/
ln -s /etc/yum/axelget/axelget.conf .
cd /usr/lib/yum-plugins/
ln -s /etc/yum/axelget/axelget.py .

最后确保/etc/yum.conf中plugins=1就好了