Use the two-level memory equation in Appendix 1A to answer this question: A computer has a cache and main memory. If a referenced word is in the cache, 20 ns are required to access it. If it is in main memory but not in the cache, 60 ns are needed to load it into the cache (this includes the time to originally check the cache), and then the reference is started again. The cache hit ratio is 0.9. What is the average time in ns required to access a referenced word on this system?

Use the two-level memory equation in Appendix 1A to answer this question: A computer has a cache and main memory. If a referenced word is in the cache, 20 ns are required to access it. If it is in main memory but not in the cache, 60 ns are needed to load it into the cache (this includes the time to originally check the cache), and then the reference is started again. The cache hit ratio is 0.9. What is the average time in ns required to access a referenced word on this system?

Name: Alert dont submit AI generated answer. Use the two-level memory equati
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Description: Alert dont submit AI generated answer. Use the two-level memory equation in Appendix 1A to answer this question: A computer has a cache and main memory. If a referenced word is in the cache, 20ns are required to access it. If it is in main memory but

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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