Thanks for the test report, that’s very interesting. Did you try compiling the VC++ executable in debug vs release mode, just in case this makes a difference?
I’m really surprised by these results. Sure, kernel mode transitions don’t necessarily imply terrible performance losses in real-life scenarios, but this seems like such an unnecessary thing to do.
Why did Microsoft choose this architecture for all their languages? Just because it was the simplest thing to do, or to facilitate interfacing with debuggers, or…?