[squid-users] gaining the optimal configuration of squid by using a benchmarker

hi!
i want to gain the optimal configuration of squid by using a benchmarker,
i'm in a hurry,
can anyone help me how to do it?

i've tried to use polygraph bud the commands in the documents didnt work,
now i really dont know what to do,
i'm a beginner in linux and this is my project to be graduated from university,
and i'm really intereseted in doing it.
i'll be very thankful if you be my guide!

-- 
T.Dadashi