On the IBuildings techPortal today there's a new podcast posted in the Dutch PHP Conference series - David Soria Parra's talk on analyzing web applications with Dtrace.

DTrace is the Swiss army knife to analyze the behavior of applications and enabling you to gather detailed information from the bottom of your application stack up to the top. DTrace is used by system administrators and developers, on Solaris, Mac OSX and FreeBSD, to do in-depth analysis of an application, to find and reduce performance bottlenecks and problems in productive system. The talk will give an introduction how to use DTrace's capabilities in web development, reflect the current state of DTrace support in PHP and show examples how to trace PHP script in production.

You can listen to this latest episode via their in-page player.