How does CPAN testers and Kwalitee affect performance or memory usage?

CPAN Testers and Kwalitee are crucial in the Perl ecosystem, ensuring that modules are of high quality. These tools help maintainers identify performance issues and potential memory usage problems, but they don't directly affect the performance of the modules themselves. Instead, they provide insights that developers can use to optimize their code.

CPAN Testers run automated tests on CPAN modules across various platforms and Perl versions. The results highlight performance trends, allowing maintainers to address issues proactively. Kwalitee evaluates the quality of the code based on various metrics, showing areas where developers can improve and enhancing overall performance and memory efficiency.

This means that while CPAN Testers and Kwalitee may not directly affect the performance of a Perl application, they significantly contribute to the community's ability to produce better, more efficient code.