Bug report Bug description: I recently updated my python environment and discovered a weird bug that occurs between matplotlib, numpy, and multiprocessing. Code to demonstrate the bug below. In the ...

Check the key differences between multithreading and multiprocessing. Having a comprehensive understanding of both systems can help you in improving the performance of the concurrent systems.

When run all tests in test.test_multiprocessing_spawn.test_threads, progress lingers (on 30 almost seconds) on test_terminate. But when run only test_terminate, it completes quickly.