It's really interesting how little time it is before things become disjointed. Recently working with some legacy code I noticed this. Usually I have a continuo

It's really interesting how little time it is before things become disjointed. Recently working with some legacy code I noticed this. Usually I have a continuous unit testing process which normally is < 4 seconds to give feedback. I had to wrap some tests around some legacy code, which required some expensive setup which added an extra 10 seconds. I really feel pained working with that code and the extra 10 seconds. It is just enough time for the brain to drift off somewhere else. Ironic when in the past I have worked with C++ code bases that would take 20 minutes to compile, though incremental builds and parallel builds brought that number down. Also in embedded systems, I've got 3 minute cycles to try something out. However most of the coding is done on a PC with a fast unit testing cycle which dramatically improves feedback loops.