[malodyets]

I was about to say the same thing.

Multiprocessing on Python works great and isn’t even very hard if you use say async_apply with a Pool.

Comparing single-threaded Python with multiprocesssing in Language X is unfair if not disingenuous.

[mlyle]

> Multiprocessing on Python works great and isn’t even very hard if you use say async_apply with a Pool.

Multiprocessing works great if you don't really need a shared memory space for your task. If it's very loosely coupled, that's fine.

But if you use something that can benefit from real threading, Python clamps you to about 1.5-2.5 cores worth of throughput very often.

[heavyset_go]

There's a serialization overhead both on dispatch and return that makes multiprocessing in Python unsuitable for some problems that would otherwise be solved well with threads in other languages.

[mirekrusin]

Unless you don't need to change your code.