LUA is FFOC

LUA is the toy language for those who enjoy the Forced Flushing Of L1/L2 Cache per operation. In fact, every operation causes several L2 cache misses during table look-ups, flushing both the L1 and L2 caches.

http://www.slideshare.net/hughreynolds/optimizing-lua-for-consoles-allen-murphy-microsoft

Enjoy your FFOC.

>>145,146
apparently at least some game engines that use lua use a modified vm. for example, havokscript which is basically an optimized lua interpreter with built-in structures: http://www.gdcvault.com/play/1014795/Havok-Script-Efficient-Lua-Scripting (slides 29-31)

however i would imagine luajit (where supported) will probably be the preferred option, especially with its ffi