What is regex performance tuning in Perl?

Regex performance tuning in Perl involves optimizing regular expressions to improve their efficiency and reduce execution time. This can be particularly important when working with large data sets or complex patterns.

Some techniques for performance tuning regex in Perl include:

• Minimizing backtracking by avoiding ambiguous patterns.
• Using non-capturing groups wherever possible.
• Utilizing the 'x' modifier for whitespace and comments in complex patterns.
• Compiling regex patterns only once when used repeatedly.

By following these guidelines, you can enhance the performance of your regex operations, leading to faster execution times in your Perl scripts.