> multithread scalability is a well understood, if not easy, problem As someone fairly well versed in MESI and cache optimization: it really isn't. It's a mino

> multithread scalability is a well understood, if not easy, problem As someone fairly well versed in MESI and cache optimization: it really isn't. It's a minority of people that understand it (and really, that need to). > Building your application on top of message passing not only gives away some performance This really isn't universally true either. If you're optimizing for throughput, pipelining with pinned threads + message passing is usually the way to go if the data model allows for it.