Amdahl’s law - Example 2
Objective: Speedup Floating point square root operation. Which is better: Design1 or Design2?
Design 1: The operation uses FPSQR hardware. FPSQR is responsible for 20% of the square root execution time. Speedup this component by a factor of 10.
Design 2: Make all the floating point (FP) instructions run faster. How much faster? 2 times faster. Fp instructions are responsible for 50% of the square root execution time.