[Python-Dev] STM and python (original) (raw)

Antoine Pitrou solipsis at pitrou.net
Thu Dec 1 01:50:12 CET 2011

On Thu, 1 Dec 2011 01:31:14 +1100 Matt Joiner <anacrolix at gmail.com> wrote:

However given advances in locking and garbage collection in the last decade, what attempts have been made recently to try these new ideas out? In particular, how unlikely is it that all the thread safe primitives, global contexts, and reference counting functions be made _transactionatomic, and magical parallelism performance boosts ensue?

IMHO, it sounds a bit too magical to be true.

I'm aware that C89, platforms without STM/GCC, and single threaded performance are concerns. Please ignore these for the sake of discussion about possibilities.

http://gcc.gnu.org/wiki/TransactionalMemory

I find it interesting that the only example of hardware transactional memory mentioned in this page is a Sun CPU project which has been cancelled. Does Intel have anything similar in the works?

Regards

Antoine.

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