25
Free threaded Python is here with 3.13 beta!
(docs.python.org)
A community for discussing the Python programming language.
But with multiprocessing you're paying extra cycles to serialize and deserialize with those data structures (plus the added cost of storing copies in multiple places), and processes are much heavier to spin up...
Yeah, there is overhead. It's not so critical for Python, because I am using it for scripting and prototyping, and when I need performance, I rewrite critical code parts in C++.