Slower layer to a faster layer, Computer Engineering

Assignment Help:

Given a four level hierarchical storage system consisting of: cache,  primary storage, secondary storage, and tertiary storage. Suppose the following:  programs may be executed on any of the four levels; each level consists of the same amount of real storage and the range of addresses on each level is identical. The speed at which programs are run is grouped from slowest (tertiary storage) to fastest (cache), where each layer is 10 times faster than the previous lower layer. There exists one CPU in this system, which may run one program at a time. Programs may be shuttled from any layer to any layer.

a) Why might the operating system choose to move information from a faster level to a slower level, bypassing an intermediate level, IE. from cache to secondary  storage?

b) Why would items move from a slower layer to a faster layer?

c) Should information be allowed to move from any level to any level or should transfers only occur from adjacent levels? Explain in detail.


Related Discussions:- Slower layer to a faster layer

Synchronous, What are differences between Synchronous, Asynchronous and I s...

What are differences between Synchronous, Asynchronous and I synchronous communication? Sending data encoded in your signal needs that the sender and receiver are both by using

Security, We now consider the relation between passwords and key size. For ...

We now consider the relation between passwords and key size. For this purpose consider a cryptosystem where the user enters a key in the form of a password. Assume a password consi

What are rimm, What are RIMM? RDRAM chips can be assembled into larger ...

What are RIMM? RDRAM chips can be assembled into larger modules known as RIMM. It can hold up to 16 RDRAM

Explain the concept of concurrent and parallel execution, The Concept of Co...

The Concept of Concurrent and Parallel Execution Real world systems are concurrent in nature and computer science is about modeling the real world. Illustrations of real world

Computer, is data bus is bidirectional

is data bus is bidirectional

Describe about sole access protocol, Q. Describe about Sole Access Protocol...

Q. Describe about Sole Access Protocol? The atomic operations that have conflicts are handled with the help of sole access protocol. The method used for synchronization in this

What is monitoring-and-surveillance agents, Q. What is monitoring-and-surve...

Q. What is monitoring-and-surveillance agents? ANSWER: Monitoring-and-surveillance agents or predictive agents are intelligent agents that examine and report on equipment.

What is digital versatile disk read only memory, DVD-ROM employs same princ...

DVD-ROM employs same principle as a CD-ROM for reading and writing. However a smaller wavelength laser beam is used. Total capacity of DVD-ROM is 8.5GB. In double-sided DVD-ROM two

What are the mapping techniques, What are the mapping techniques? a)Dir...

What are the mapping techniques? a)Direct mapping b) Associative mapping c)  Set associative mapping

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd