On a clean installation of centOS, run the following code:

#
# Run the benchmark
#
yum install -y mesa-libGL-devel libXext-devel libX11-devel
wget http://byte-unixbench.googlecode.com/files/unixbench-5.1.2.tar.gz
tar -xzf unixbench-5.1.2.tar.gz
cd unixbench-5.1.2
./Run