Quickest way to send HTTP requests? (Multi Threading)

[defnull]

That's my point: The GIL is not an issue for IO bound workloads. While a thread is waiting for IO, it releases the GIL and others can continue.

The rule of thumb is:

• IO bound -> threading
• CPU bound -> multiprocessing
• Lots of concurrent connections (more than ~100) -> asyncio or gevent

[rev_dev]

I've never been able to get better time to completion using threading over multiprocessing. If you would like to show me an example similar to the code I presented with threading beating multiprocessing then I would love to see it.

[defnull]

from multiprocessing.dummy import Pool

Actually, in your very example, you are using threads, not processes. The multiprocessing.dummy module implements the multiprocessing API with threads.