[pypy-dev] Great experience with PyPy

[Armin Rigo]

Hi Marko,

On Fri, Feb 8, 2013 at 12:22 PM, Marko Tasic <mtasic85 at gmail.com> wrote:
> What is the status of it ATM, and what is best way to test
> and deploy pypy with stm?

The STM project progressed slowly during the last few months.  The
status right now is:

* Most importantly, missing major Garbage Collection cycles, which
means pypy-stm slowly but constantly leaks memory.

* The JIT integration is not finished; so far pypy-stm can only be
compiled without the JIT.

* There are also other places where the performance can be improved,
probably a lot.

* Finally there are a number of usability concerns that we (or mostly
Remi) worked on recently.  The main issues turn around the idea that,
as a user of pypy-stm, you should have a way to get freeback on the
process.  For example right now, transactions that abort are
completely transparent --- to the point that you don't have any way to
know that it occurred, apart from "it runs too slowly" if it occurs a
lot.  You should have a way to get Python tracebacks of aborts if you
want to.  A similar issue is "inevitable" transactions.


A bientôt,

Armin.