Essentials of Computer Organization and Architecture
5th Edition
ISBN: 9781284123036
Author: Linda Null
Publisher: Jones & Bartlett Learning
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Chapter 11, Problem 5E
Explanation of Solution
Performance that is improved after adding new software:
- The information about the fault rate of the cache that is produced in the system is given.
- When the fault rate is increased the performance gets decreased.
- After installation of new product the fault rate is considered to be reduced
- Reading of the old system and the new system are provided at the different times.
- Calculating harmonic mean for comparing the performance of each.
Consider there are n reading which are expressed are in the form rate it required to calculate harmonic mean.
Calculating the harmonic mean is made by taking the sum of the reciprocals by dividing the number n by the sum obtained.
Consider the following table:
| Serial no | Fault rate that occurred before | Fault rate that occurred after |
| 1 | 35% | 45% |
| 2 | 42% | 38% |
| 3 | 12% | 10% |
| 4 | 20% | 22% |
Calculating the harmonic mean:
System Before:
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Chapter 11 Solutions
Essentials of Computer Organization and Architecture
Ch. 11 - Prob. 1RETCCh. 11 - Prob. 2RETCCh. 11 - Prob. 3RETCCh. 11 - Prob. 4RETCCh. 11 - Prob. 5RETCCh. 11 - Prob. 6RETCCh. 11 - Prob. 7RETCCh. 11 - Prob. 8RETCCh. 11 - Prob. 9RETCCh. 11 - Prob. 10RETC
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