Question
Consider the following memory hierarchies: - System A: Access Times o Cache: 1ns o Main Memory: 10ns o Disk: 5ms Hit Rate o Cache: .99
Consider the following memory hierarchies:
- System A:
Access Times
o Cache: 1ns
o Main Memory: 10ns
o Disk: 5ms
Hit Rate
o Cache: .99
o Main Memory: .85
o Disk: 1
a. What is the average memory access time for this memory hierarchy?
b. If we improved disk access time by over 100% (making it 2ms), how would that affect the average memory access time?
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Data Management Databases And Organizations
Authors: Richard T. Watson
2nd Edition
0471180742, 978-0471180746
