Varnish is a state-of-the-art, high-performance HTTP accelerator. It uses the advanced features in Linux 2.6, FreeBSD 6/7 and Solaris 10 to achieve its high performance.
memcached is a high-performance, distributed memory object caching system, generic in nature, but intended for use in speeding up dynamic web applications by alleviating database load.
Ateji PX, now available for the Java language, by reducing development & debugging time, Ateji PX let you concentrate your talent on good design & performance tuning. You can find linear programming, portfolio optimization software & java threads with Ate