reaktivo

Dec 3, 2009 10:27pm

Ghostrider

Dec 1, 2009 3:33pm

How to write fast code

xn—22h:

“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.”

Genius.