Suppose Thread One Is Downloading a 800KB File While Another

question 78

Multiple Choice

Suppose thread one is downloading a 800KB file while another thread is processing the same file on a multi-CPU machine. Suppose further that one time slice allows the first thread to download about 10KB and that the second thread can process 10KB of the file in one time slice. What is the minimum number of CPUs that will allow the job to be completed in roughly half the time of a single-CPU machine?

• A) 1
• B) 2
• C) 3
• D) 4

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Definitions:

Consumer Surplus

Consumer surplus is the difference between the total amount that consumers are willing and able to pay for a good or service and the total amount they actually pay.

Equilibrium

A state in a market where the quantity of goods supplied is equal to the quantity of goods demanded, with no pressure to change the price or quantity.

Price Ceiling

A government-imposed limit on how high a price can be charged for a product or service, often set below the equilibrium price to keep goods affordable.

Consumer Surplus

The disparity between what consumers are ready and able to spend for a product or service and the amount they end up paying.