Grosch's law
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Grosch's law is the following observation about computer performance made by Herb Grosch in 1965:
- "There is a fundamental rule, which I modestly call Grosch's law, giving added economy only as the square root of the increase in speed -- that is, to do a calculation 10 times as cheaply you must do it 100 times as fast."
This law is more commonly stated as
- Computer performance increases as the square of the cost. If you want to do it twice as cheaply, you have to do it four times slower.