[Python-Dev] GIL removal question

[Raymond Hettinger]

On Aug 10, 2011, at 4:15 AM, Nick Coghlan wrote:

>> After implementing the aforementioned step 5, you will find that the performance of everything, including the threaded code, will be quite a bit worse.  Frankly, this is probably the most significant obstacle to have any kind of GIL-less Python with reasonable performance.
> 
> PyPy would actually make a significantly better basis for this kind of
> experimentation, since they *don't* use reference counting for their
> memory management.

Jython may be a better choice.  It is all about concurrency.  Its dicts are built on top of Java's ConcurrentHashMap for example.



Raymond
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