Multi-threaded alternative to tinyproxy? [closed]

Privoxy is a "non-caching web proxy with advanced filtering capabilities". But... What is wrong with using multiple processes? Due to the nature of how processes/threads are created on Linux (and some unixes) there's not much difference between a software that uses many children processes or threads...

If your concern is resource usage, you can tune tinyproxy much like apache (Min servers, min spare servers, max servers, etc...).