• Suppose we enhance a computer to make all floating-point instructions run 10 times faster. Answer the following questions:

  a. If the execution time of some benchmark before the floating-point enhancement is 50 seconds, what will the speedup be if 60% of the 50 seconds is spent executing floating-point instructions?

  b. How much of the execution time would floating-point instructions have to account for in a benchmark that runs for 100 seconds with the old floating-point hardware in order to yield a speedup of 4?

  c. Assuming that we enhance the computer as described above, plot the speedup obtained versus the fraction of time in the original benchmark spent doing floating-point operations