Haha, sure, and the other way around, time is spent constructing the compile-time type info for the pimpl class. Let's ignore both since the impact would be so

Haha, sure, and the other way around, time is spent constructing the compile-time type info for the pimpl class. Let's ignore both since the impact would be so small it would almost certainly be drowned out by all the random noise that happens all the time.