Everybody wants quick applications. A lot of that speed can be gained by the way you write your software, but a big chunk has to do with the way PHP is configured. In this talk we’ll see the different tools we use as a hosting company to narrow down the culprit and show the many ways we can tune PHP to get to the endpoint: quick applications. Get ready to get your hands dirty with phpspy, atop, opcache, memory limits, etc…
When you get out you should at least have some idea how to use phpspy and have an idea to look for opcache / memory settings if your site starts hitting a performance problem.