Larry Hastings is working on removing the GIL from CPython: https://lwn.net/Articles/723949/
For those who don't know the background: - The GIL (Global Interpreter Lock) is used to ensure that only one piece of code can update references to an object at a time. - The downside of the GIL is that CPython cannot take advantage of multiple CPU cores effectively. Hence multi-threaded code is not as fast as it could be. - Past attempts to remove the GIL caused unacceptable slow-downs for single-threaded programs and code run on single-core CPUs. - And also failed to show the expected performance gains for multi-threaded programs on multi-core CPUs. (There was some gain, but not much.) Thanks Larry for your experiments on this! -- Steve “Cheer up,” they said, “things could be worse.” So I cheered up, and sure enough, things got worse. -- https://mail.python.org/mailman/listinfo/python-list
