Give two reasons why caches are useful. What problems do they solve? What problems do they cause? If a cache can be made as large as the device for which it is caching (for instance, a cache as large as a disk), why not make it that large and eliminate the device?

Give two reasons why caches are useful. What problems do they solve? What problems do they cause? If a cache can be made as large as the device for which it is caching (for instance, a cache as large as a disk), why not make it that large and eliminate the device?

Management Of Information Security

6th Edition

ISBN:9781337405713

Author:WHITMAN, Michael.

Publisher:WHITMAN, Michael.

Chapter12: Protection Mechanisms

Section: Chapter Questions

Problem 6RQ

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Question

Give two reasons why caches are useful. What problems do they
solve? What problems do they cause? If a cache can be made as
large as the device for which it is caching (for instance, a cache as
large as a disk), why not make it that large and eliminate the
device?

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Give two reasons why caches are useful. What problems do they solve? What problems do they cause? If a cache can be made as large as the device for which it is caching (for instance, a cache as large as a disk), why not make it that large and eliminate the device?
Give two reasons why caches are useful.what problem they do solve? What problem they do cause? If a cache can b e made as large as the device for which it is caching ( for instance, a cache as large as a disk), why not make it that large and eliminate the device?
What is the difference between a cache that is entirely associative and a cache that is directly mapped?
Draw a line between a cache that is fully associative and one that is directly mapped out.
Caches have two characteristics, a read architecture and a write policy. Critically discuss the write policy and the read architecture?
Think about the distinction that exists between a cache that is completely associative and one that is directly mapped.
Give two examples of why caches are beneficial. What issue are they supposed to solve? What kind of issue do they create? Why not build a cache as huge as the device it is caching for (for example, a cache as large as a disk) and delete the device?
Think about the difference between a cache that stores information in a fully related way and one that stores information in a straight way.
There are a few different reasons why caches are useful. What exactly is the point of all of their hard work? What are the repercussions of making use of them? Why not simply make the cache the same size as the device it is caching, in the event of a cache (for example, a whole hard drive)?
Caches are utilized to benefit from "spatial locality" and "temporal locality" in order to increase performance. What benefits do caches get from these two phenomena?
By leveraging "spatial locality" and "temporal locality," caches can improve system performance. How do caches profit from these two events?
The caches are valuable for two reasons: how do they address the problem? Are they causing any problems? So, if it's possible to create a cache that's the same size as the device it's caching for (for example, a disk cache), why not do that, and remove the device?