What is LLVM and How is replacing Python VM with LLVM increasing speeds 5x?

Question

Google is sponsoring an Open Source project to increase the speed of Python by 5x.

Unladen-Swallow seems to have a good project plan

Why is concurrency such a ha

Answer 1

The switch to LLVM itself isn't solving the concurrency problem. That's being solved separately, by getting rid of the Global Interpreter Lock.

I'm not sure how I feel about that; I use threads mainly to deal with blocking I/O, not to take advantage of multicore processors (for that, I would use the multiprocessing module to spawn separate processes).

So I kind of like the GIL; it makes my life a lot easier not having to think about tricky synchronization issues.