Hi all,

1) Is there any (free) tool to measure code performance or time complexity of it on Visual Studio 2022, please?
2) Among GUnit and CPPUnit, which do you suggest for a C++ developer to get started using for unit testing?

Thanks in advance.

Everything readily available, you just need to search it before posting here,do your homework dude.

https://docs.microsoft.com/en-us/visualstudio/test/improve-code-quality
https://docs.microsoft.com/en-us/visualstudio/test/quickstart-create-a-load-test-project
https://docs.microsoft.com/en-us/visualstudio/test/walkthrough-create-and-run-a-load-test
https://docs.microsoft.com/en-us/visualstudio/test/writing-unit-tests-for-c-cpp
https://docs.microsoft.com/en-us/visualstudio/profiling/
https://docs.microsoft.com/en-us/visualstudio/test/how-to-use-google-test-for-cpp
https://docs.microsoft.com/en-us/visualstudio/test/how-to-use-microsoft-test-framework-for-cpp

For unit test, I really like CATCH2 and I use it in every my projects.