I think the problem with no Ruby JIT stern from the fact there are no Ruby design spec. We have implementation and no standard. Compared to Javascript and Lua, Python or Java.
Ruby may not ever catch up to the superfast LuaJIT or Javascripts V8 performance due to the nature of the languages itself. But that doesn't mean Ruby should be an order of magnitude slower then them.
Ruby may not ever catch up to the superfast LuaJIT or Javascripts V8 performance due to the nature of the languages itself. But that doesn't mean Ruby should be an order of magnitude slower then them.