The developers of Vendetta Online (http://www.vendetta-online.com) used to use Lisp for some of their server-side components but have since switched to Erlang.
Don't leave out the free Lisps - CMUCL and SBCL are also capable of generating very fast code. Scheme can be fast too - Chez and Icarus are known for speed, and there's always Stalin if you're willing to deal with a static program or add your own interpreter.
Don't leave out the free Lisps - CMUCL and SBCL are also capable of generating very fast code. Scheme can be fast too - Chez and Icarus are known for speed, and there's always Stalin if you're willing to deal with a static program or add your own interpreter.