I was curious about this and did some casual googling. It spawns an interpreter per thread. However, it seems this is not advantageous performance wise. From docs [1]
The "interpreter-based threads" provided by Perl are not the fast, lightweight system for multitasking that one might expect or hope for. Threads are implemented in a way that makes them easy to misuse. Few people know how to use them correctly or will be able to provide help.
The "interpreter-based threads" provided by Perl are not the fast, lightweight system for multitasking that one might expect or hope for. Threads are implemented in a way that makes them easy to misuse. Few people know how to use them correctly or will be able to provide help.
[1]: https://perldoc.perl.org/threads