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Following Up on the Python JIT
Performance of Python programs has been a major focus of development for the language over the [...]
He showed the bytecode for the stack-based Python virtual machine that was generated by the interpreter and stepped through one iteration of the loop describing the changes to the stack and to the duck and sound local variables. He noted that the term "executable data" should be setting off alarm bells in people's heads; " if you're a Rust programmer, this is what we call 'unsafe code'" he said to laughter. The Faster CPython developers think that making the JIT thread-safe can be done without too much trouble; " it's going to take a little bit of work and there's kind of a long tail of figuring out what optimizations are actually still safe to do in a free-threaded environment".
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