Vertexbuffer.com

After solving any optimization issue resulting in enhanced performance, you have altered the landscape of you application. You will need to re-perform the benchmark and detection stage from the beginning. It is not uncommon to fix a CPU limitation resulting in an application that is now GPU limited or vice versa.

It is also important to know when to stop the optimization process as well. Optimization can occur nearly indefinitely if it were to continue with no goal. Therefore, we should have an idea before we optimize about the performance gains we are trying to achieve. Unless an application is completely finished (which I’ve never heard of) we should only be looking for substantial frame rate improvements. I’m not sure that any company would pay for someone to spend three weeks trying to increase the frame rate from 60 hertz to 63 hertz. After we optimize, we should consider whether or not we should continue optimizing. If you wait a couple of days, chances are good that another programmer, who doesn’t understand optimization well, will insert code that reduces performance again. That is your invitation to begin optimizing again.