Fw: [pypy-dev] Re: [ann] Minimal Python project

[Samuele Pedroni]

From: "Michael Hudson" <mwh at python.net>
>
> > integer in the range [-2**30,2**30-1] would be represented by their bit
> > patterns shifted left by 1 bit
> >
> > all other objects would be boxed, and the address left shifted by 1 and
ORed
> > with 1.
>
> I seem to recall someone tried that with python quite recently and
> found it was a pessimization (search python-dev, I guess).
>
> I'm not sure that's what Paul meant, though.
 
he wrote tagged representation, and there was an e.g. in front of the example
above, I don't claim it does wonder, even less together with psyco or with
reference counting.