MySQLTuner is a lightweight script written in Perl, aimed at helping database administrators enhance the performance and configuration of MySQL and MariaDB systems. It evaluates essential metrics and parameters associated with system performance, security, and resource consumption, offering practical suggestions for improvement. By analyzing the existing workload, cache utilization, query efficiency, and memory allocation, MySQLTuner pinpoints possible bottlenecks and recommends modifications to configuration settings. This tool is especially beneficial for continuous maintenance, as it draws attention to problems like inefficient indexing, the use of too many temporary tables, or poor query caching practices. Database administrators rely on MySQLTuner not only to ensure peak performance but also to minimize system overhead while fostering a robust and efficient database setup. Its user-friendly interface and straightforward recommendations make it an indispensable asset for managing databases effectively.