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• 2009-12-01

  How to write fast code

  “The CPU,” he said, “runs at a certain speed. It can execute a fixed number of instructions per second, and no more. There is a finite limit to how many instructions per second it can execute. Right?”

  “Right,” I said.

  “So there is no way, really, to make code go faster, because there is no way to make instructions execute faster. There is only such a thing as making the machine do less.”

  He paused for emphasis.

  “To go fast,” he said slowly, “do less.”

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     Words of wisdom:

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