I *love* your tools. I've been using AQtime extensively during the last months to improve speed in TeeChart Pro component library. It's amazing how precise and easy is to detect bottlenecks and discover surprisingly slow parts of the code. Non-intrusive profiling is a must and the overall performance of AQtime is great. I use to do full function profiling on very large projects (+100K lines of code) and never bother to minimize the number of profiled sections because AQtime is fast enough. The parent / child report is enormously useful to focus where to put more working hours.