[Python-Dev] Python multithreading without the GIL

 Sam Gross [this message]
 ` [Python-Dev] " Chris Angelico
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Hi,

I've been working on changes to CPython to allow it to run without the
global interpreter lock. I'd like to share a working proof-of-concept that
can run without the GIL. The proof-of-concept involves substantial changes
to CPython internals, but relatively few changes to the C-API. It is
compatible with many C extensions: extensions must be rebuilt, but usually
require small or no modifications to source code. I've built compatible
versions of packages from the scientific Python ecosystem, and they are
installable through the bundled "pip".

Source code:
https://github.com/colesbury/nogil

Design overview:
https://docs.google.com/document/d/18CXhDb1ygxg-YXNBJNzfz...

My goal with the proof-of-concept is to demonstrate that removing the GIL
is feasible and worthwhile, and that the technical ideas of the project
could serve as a basis of such an effort.

I'd like to start a discussion about these ideas and gauge the community's
interest in this approach to removing the GIL.

Regards,
Sam Gross
colesbury@gmail.com / sgross@fb.com


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