At least in games Ruby has a hard time competing with LuaJIT; all that extra headroom is really nice to have, because 16ms isn't much at all. Having said that,

At least in games Ruby has a hard time competing with LuaJIT; all that extra headroom is really nice to have, because 16ms isn't much at all. Having said that, GC improvements are a good thing. Some of the RPG Maker folks will be delighted when this eventually reaches them.