Python Gil And Multithreading

I would like to separate my sigle-thread application to number of working threads. Just 1 question - what about performance of this action? If GIL prevents python from executing mo

Solution 1:

Don't worry about the GIL. Depending on the kinds of things your program does (calculation vs. I/O) you will have different performance characteristics. If your program is I/O bound then you probably won't notice the GIL at all.

Another approach is to use the multiprocessing module where each process runs in its own OS process with its own Python runtime. You can take full advantage of multiple cores with this approach, and it's usually safer because you don't have to worry about synchronising access to shared memory.