Flutterby™! : C++ final keyboard

It's been a while since I've been cycle counting, but this is interesting: The Performance Impact of C++'s `final` Keyword

In case you skimmed to the end, here's the summary:

• Benefit seems to be available for GCC.
• Doesn't affect Apple's chips much at all.
• Do not use final with Clang, and maybe MSVC as well.

At the very least, it's another one of those things to hide behind the preprocessor so you've got options.