A Two-Part Question

question 7

Essay

A two-part question:
(Part A)
Assume that a design team is considering enhancing a machine by adding MMX (multimedia extension instruction) hardware to a processor. When a computation is run in MMX mode on the MMX hardware, it is 10 times faster than the normal mode of execution. Call the percentage of time that could be spent using the MMX mode the percentage of media enhancement.
(a) What percentage of media enhancement is needed to achieve an overall speedup of 2?
(b) What percentage of the run-time is spent in MMX mode if a speedup of 2 is achieved? (Hint: You will need to calculate the new overall time.)
(c)What percentage of the media enhancement is needed to achieve one-half the maximum speedup attainable from using the MMX mode?

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Definitions:

Top Quintile

The highest fifth of a population in income or wealth distribution, representing those with the greatest share of income or wealth.

Income

Money received, especially on a regular basis, for work, through investments, or from business activities, used to fund day-to-day expenditures or save for the future.

Bottom Quintile

The lowest fifth or 20% segment of the population in a statistical distribution, often used in reference to income levels.

Income

Earnings received by an individual or business for their labor, investments, or through the sale of goods or services.