None of the bullets in the article include one of the most important aspects of performance tuning there is... one, that if not present, will bring the most robust hardware and all other tuning methods right to its knees. It's usually overlooked, it's usually given the least time to accomplish, and it seems it's been "mastered" by only an elite relative few...
...writing good solid high performance set based scalable code to begin with. 😉
--Jeff Moden
Change is inevitable... Change for the better is not.