A few months ago we bit the bullet and decided to re-write ANTS Profiler, Red Gate’s .net code profiling application. ANTS Profiler 3 was good, but AP4 is going to be remarkable. It’s faster (between 5 and 30 times, depending on what you’re doing); easier to use (we interviewed and videoed tens of users, and gathered data from hundreds, if not thousands, while designing AP4); and has a great timeline feature (you can highlight areas of high cpu and just see the code that was executed in those time slots).
We’ve now got a public build available. It’s still a very early version but there’s enough there for it to be useful. We’re going to be releasing weekly builds from now on, so keep an eye out.
If you’re writing .net code and want to find bottlenecks in your application, then either read Bart’s post for some more information, or go straight to the messageboards to download the early build of ANTS Profiler 4.