[Mono-list] Re: Time problems on Mono
Mon, 13 Dec 2004 06:29:47 -0500
On Mon, 2004-12-13 at 01:48 -0800, Jordi wrote:
> Sorry for my ignorance but what's the difference between Mono JIT and
> Mono Interpreter??.
You've hit on it already. The interpreter (mint) is slower than
molasses in January, while the JIT (mono) is fast.
More accurately, the JIT is a JIT, converting the CIL into machine code
optimized for your particular processor, which executes directly on the
processor. Once JIT is complete, there is *no* execution overhead
(except for GC, which is arguably a separate but related issue). The
interpreter, on the other hand, doesn't do that. It instead interprets
each CIL instruction, with no optimization at all.
It's like the difference between running a shell script and a C program.