Webgrind
A web frontend for profiling in Xdebug
Webgrind is an Xdebug profiling web frontend in PHP5 written by Jacob Oettinger and me. It implements a subset of the features of kcachegrind, and installs in seconds and works on all platforms. For quick'n'dirty optimizations it does the job.

- Super simple, cross platform installation - obviously :)
- Track time spent in functions by self cost or inclusive cost. Inclusive cost is time inside function + calls to other functions.
- See if time is spent in internal or user functions.
- See where any function was called from and which functions it calls.
Visit the Webgrind homepage