Hi Jenny, Reverse proxy or not ? We're using squid as reverse proxy et only that. We can achieve about 2K RPS with our boxes and this server isn't overloaded... In fact, it's common hardware, like mono dual core Xéon, some RAM and a poor RAID 1 disk array without BBU. I think 5K RPS is possible. :) David. >> Dears , >> >> how we can achieve 5000 RPS through squid ,,,, >> >> Thanks in advance >> Liley > > > In your dreams. > > Jenny