BTW, PyPy (unlike CPython) indeed great for multiprocessing. CPython's ref-counting forces copy-on-write in RAM even when no write operation have been even app

BTW, PyPy (unlike CPython) indeed great for multiprocessing. CPython's ref-counting forces copy-on-write in RAM even when no write operation have been even applied at all. So, if you have a huge read-only object in RAM forget about multiprocessing. The object will be cloned for each process.