[datashovel]

Isn't shared nothing a scalable architecture?

http://en.wikipedia.org/wiki/Shared_nothing_architecture

[tunesmith]

Ok, I hadn't seen that phrase to describe that kind of architecture before, thanks. Still though, it seemed they were describing each node's "build-the-world" process as onerous. Is HHVM thread-per-request?

[Sanddancer]

Yes. It's why they had problems with certain non-thread safe routines like locale.