What is GIL in Python
This article is to share with you what is GIL in Python, the editor thinks it is very practical, so I share it with you to learn. I hope you can get something after reading this article.
Q: what is the GIL in Python?
A: in Python, GIL is Global Interpreter Lock, an abbreviation for globally interpreted lock, which ensures that only one thread executes bytecode on one CPU at a time, and cannot map multiple threads to multiple CPU. This is a defect of the CPython interpreter, because CPython is the default Python execution environment in most environments, and many libraries are written based on CPython, so many people attribute GIL to the problem of Python.
This is the direct reason why the standard version of Python does not achieve true multithreading concurrency. To put it simply, a Python process can never use multiple CPU cores at the same time. GIL is designed to protect thread safety, because multi-threads share variables, if the thread synchronization is not good, multi-thread is very easy to mess up the thread.
The above is what GIL is in Python. The editor believes that there are some knowledge points that we may see or use in our daily work. I hope you can learn more from this article. For more details, please follow the industry information channel.
