Well, that you don't use OOP for those inner loops is kinda taken for granted I think. That is, you certainly don't program for code beauty first and foremost -

Well, that you don't use OOP for those inner loops is kinda taken for granted I think. That is, you certainly don't program for code beauty first and foremost -- OOP may not hurt in a particular case, but if it does, code beauty may have to go... example: http://www.particleincell.com/2012/memory-code-optimization/ http://www.particleincell.com/2012/memory-code-optimization/ (which is not about OOP per se, and not about branching, but illustrating that knowing what the CPU actually does (not just what it did decades ago) is really important when talking about performance)