5.5 Closing notes

In this chapter, we introduced tuning techniques for eliminating program clutter — anything that contributes to the runtime without contributing to the answer. We saw many examples of tuning techniques — enough that you may be asking yourself, “What’s left?” Well, as we will see in the upcoming chapters, there are a couple of ways we can help the compiler:

• Find more parallelism
• Use memory as effectively as possible

Sometimes this means we make changes that are not beautiful. However, they are often quick.