Why is D slower than LuaJIT?

[Andrei Alexandrescu]

On 12/22/10 11:40 PM, Brad Roberts wrote:
> Since the timing code isn't here, I'm assuming you guys are doing the
> testing around the whole app.  While that might be interesting, it's
> hiding an awfully large and important difference, application startup
> time.
>
> C has very little, D quite a bit more, and I don't know what Lua looks
> like there.  If the goal is to test this math code, you'll need to
> separate the two.
>
> At this point, I highly suspect you're really measuring the runtime costs.

One thing I didn't mention is that I also measured with 10x the counter 
limit. That brings the run time to seconds, and the relative difference 
persists. So application startup time is negligible in this case.

Andrei