Does logging module have impact on aiohttp performance?

[sc-syf]

I noticed that the aiohttp uses standard logging for tracking the library activity, But the logging module is threading safe, namely it contains many acquire and release lock operations. will this cause a bad performance to aiohttp in high concurrency environment?

[hleb-albau]

https://trio.readthedocs.io/en/latest/reference-io.html#asynchronous-filesystem-i-o great article about your question

[webknjaz]

The question is not about the I/O itself (not even about files) but about thread locks that the stdlib logging has under the hood: https://github.com/python/cpython/blob/64d9752/Lib/logging/__init__.py#L965-L969 / https://github.com/python/cpython/blob/64d9752/Lib/logging/__init__.py#L905 / https://github.com/python/cpython/blob/64d9752/Lib/logging/handlers.py#L1475.
I don't think logging would have much impact, though.