here's the description of the talk: Join mixpanel, WePay, and Hacker Dojo as Rasmus Lerdorf takes a close look at Wordpress and Facebook's HipHop PHP compiler

here's the description of the talk: Join mixpanel, WePay, and Hacker Dojo as Rasmus Lerdorf takes a close look at Wordpress and Facebook's HipHop PHP compiler as examples in teaching a systematic approach to benchmarking, profiling, and optimizing web applications. While his examples are PHP-specific, many of the tools like Callgrind, strace, vmstat, and others are applicable to any UNIX-based web app.