Chapter 1. Benchmarking Techniques

The phone rings and a voice on the other end yells, "Hey! Why can't this application support 200 concurrent users?" You take a deep breath, and in your most senior PHP tone you mutter, "Odd, I'll take a look at what's happening and provide a solution." Flash back to a few weeks prior to this conversation. You were tasked to build a database-driven PHP application, and by all accounts the requirements outlined a simple PHP application. As a seasoned PHP developer, you began to write code, creating the basic architectural layers, the PHP back end, the CSS, the JavaScript, and because you're well-versed in Photoshop, you also created the graphical layout, and released the application to production.

As your application ...

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