MySQLTuner : MySQLTuner is a script written in Perl that will assist you with your MySQL configuration and make recommendations for increased performance and stabi...
Use The Index, Luke! : A tutorial covering SQL indexing and SQL tuning for developers: avoiding unnecessary details about database internals.
SQL indexing is the most effect...
New Relic : New Relic’s SaaS-based Application Performance Monitoring helps you build, deploy, and maintain great web software.
Also, server monitoring, and more.
php-pm : PPM is a process manager, supercharger and load balancer for PHP applications.
It's based on ReactPHP and works best with applications that use reques...
Phinx : Phinx makes it ridiculously easy to manage the database migrations for your PHP app. In less than 5 minutes you can install Phinx and create your firs...
Vitess is a database clustering system for horizontal scaling of MySQL.