It should be tested, but I don't think that a JIT compiler can beat an ahead of time compiler when the memory isn't the bottleneck. Sure, if what you're compet

It should be tested, but I don't think that a JIT compiler can beat an ahead of time compiler when the memory isn't the bottleneck. Sure, if what you're competing against is some kind of pointer fest, forget about locks, just jumping around the memory will trash your cache, and it won't matter how optimised your local processing is. But if you follow some data oriented principles and take good care of your memory access patterns, I have a hard time imagining Java or C# beating C++ or Rust. Now there's this peculiar version/subset of C# that Mike Acton was promoting for Unity… though I'm not sure that counts.