Energy and performance optimization

Question 1

Execution time depends on the sum of ___ and ___

Answer 1

Program path and instruction timing

Question 2

T/F: comparison operations are faster than math operations

Answer 2

True

Question 3

T/F: smaller caches are better for energy consumption

Answer 3

False. Caches have an optimal size.

Question 4

How can energy use be measured?

Answer 4

Measure current

Question 5

Energy can be optimized by:

Answer 5

1. Using registers efficiently
2. Eliminating cache conflicts
3. Eliminating pipeline stalls