PHP UK Conference 2012 - Monitoring your back-end for speed and profit by Andy 'Bob' Brockhurst

This talk focuses on the challenges the BBC faces in preparing for major events such as the Olympics without the budget for new hardware. It highlights the intricacies of managing around 300 websites hosted on the same infrastructure, where traffic spikes on one site can impact others. The speaker discusses benchmark testing for their PHP and Zend Framework components, detailing their approach to identifying and addressing performance issues with limited resources. Key tools discussed include XHProf for profiling performance and methods for generating HAR files to analyze service calls and drive optimization efforts.