PECL APD and KCacheGrind for PHP Profiling?

Has anyone used PECL APD to generate PHP profile output? If so have you also produced graphical output of the profiles with KCacheGrind. I have not had any performance issues with ZOOP, but as I write more complicated reporting features for my apps in the future the need to profile them may become necessary and any jump start I could get would be great.

So far I have found the slide show below that seems useful.

http://www.slideshare.net/jonoxer/php-performance-profiling

APD

I think it would be interesting to see the output. We have some built in profiling, but only for general tracking, to see which pages are slow, which db queries are slow, that sort of thing. It would be interesting to see a more specific profile of a zoop application. Please share when you have results!

john 05 Jun 2008