[pypy-dev] Python vs pypy: interesting performance difference [dict.setdefault]

[Antonio Cuni]

On 15/08/11 15:36, Alex Gaynor wrote:
> I'd like to express that, unless we have a very compelling reason, we should
> try to keep more stuff in pure python, as opposed to RPython.  Mostly because
> it speeds up translation ;) (also easier to test, easier to write, etc.).

or, on the other hand, we should try to improve the JIT so that pure python 
code can be as fast as rpython :-)