Performance optimization is one of the biggest threats to your code.
You may be thinking, not another one of those people. I understand. Optimization of any kind should clearly be a good thing, judging by its etymology, so naturally, you want to be good at it.
Not just to set yourself apart from the crowd as a better developer. Not just to avoid being “Dan” on The Daily WTF, but because you believe code optimization is the Right Thing to Do™. You take pride in your work. […]