Homework 11General Comments- Problem from the book are taken from the Chapter Review Problems sections.
- For full credit, provide context for each problem,
show all calculations, and explain your work/answers.
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Numbers and/or algebra by themselves are not enough.
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You will lose a significant amount of credit if you do not show enough work/context for your answers.
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Homework assignments must be very neatly written or typeset (e.g. using Word or OpenOffice).
DetailsDo the following exercises from pages 144-145 of your textbook (134-135 in the full book) and the ones listed below.
| Problem | Points | Comments
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|---|
| 33 | 4 | Answer both parts.
| | 41 | 4 | Answer both parts.
| | 42 | 4 | Make sure you understand the exact definitions of the two terms. Also, try to exhaust all possible causes of each.
| | 43 | 4
| | 47 | 4 | Give your answer using reasonable units (e.g. days or years if it is really large).
| | Problem 1 below | 4
| | Problem 2 below | 4
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A computer system has a cache with access rate of 1 ns (1 x 10-9 seconds),
and RAM with access rate of 50 ns (50 x 10-9 seconds).
Assume that a requested item is in the cache 95% of the time.
What is the average access time for an item on this system?
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A computer system has a cache with access rate of 1 ns (1 x 10-9 seconds),
RAM with access rate of 50 ns (50 x 10-9 seconds), and virtual memory on the
hard drive with access rate of 9 ms (9 x 10-3 seconds).
Assume that a requested item is in the cache 95% of the time, and is in the
RAM 99% of the time. What is the average access time for an item on this system?
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