How does string interpolation affect performance or memory usage?

String interpolation in Perl enhances code readability and maintainability by automatically inserting variable values into strings. However, this convenience can come with performance trade-offs. Interpolating large strings or in performance-critical sections of code might lead to increased memory usage and slower execution times due to the creation of new strings.

# Example of string interpolation in Perl
$name = "John";
$greeting = "Hello, $name!";  # String interpolation
print $greeting;  # Output: Hello, John!