[sshumaker]

You can compare v8 to vanilla lua on the computer language shootout benchmarks page, and then compare luajit to lua on the luajit page. V8 has definitely made up some ground, and the luajit interpreter isn't generally faster than v8, but the jit is still way faster on almost all tests. The one area where luajit isn't great is on tests that stress garbage collection, since luajit still uses vanilla lua's GC. I think that's luajit's next area of focus.