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

Why some languages are not decidable, Why some languages are not decidable ...

Why some languages are not decidable or even Turing - recognizable?  The  reason  that  there  are  uncountable  many  languages  yet  only  countably many  Turing  machines.

Why did some plug-ins disappear for 0.99.19, Some of the plug-ins have prov...

Some of the plug-ins have proven unstable. These have been moved into a split download, which should be available anywhere you got the GIMP, in the file gimp-plugins-unstable-VERSI

What is test requirements, Test requirements are definite in the Requiremen...

Test requirements are definite in the Requirement Hierarchy in TestManager. The requirements hierarchy is a graphical outline of requirements and nested child requirements. Req

What are the update types possible, What are the update types possible? ...

What are the update types possible? The following update types are possible: Update type A: The matchcode data is updated asynchronously to database changes. Update

How do you make an append query, Append query can be used if you would like...

Append query can be used if you would like to add new rows of data to an already active table. The process of making an append query follows these steps they are. ? Basic step

What is bus arbitration, Q. What is Bus arbitration? In this technique,...

Q. What is Bus arbitration? In this technique, I/O interface first needs to control bus and only after that it can request for an interrupt. In this technique because only one

Creating a function, I''m suppose to create a function called calc_rectang_...

I''m suppose to create a function called calc_rectang_area(height, width),that takes two parameters: the height and width of the rectangular and return the area of the rectangular.

Explain about hard drives, Q. Explain about hard drives? Disks are gene...

Q. Explain about hard drives? Disks are generally mounted on a disk drive which comprises of an arm and a shaft along with electronic circuitry for read-write of data. Disk rot

Show the fundamental process of instruction execution, Q. Show the fundamen...

Q. Show the fundamental process of instruction execution? The fundamental process of instruction execution is:  1. Instruction is fetched from memory to CPU registers (calle

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