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

What are the properties of e-cash, What are the properties of E-cash? ...

What are the properties of E-cash? Properties: a. Monetary Value: It must be backed through either cash, bank –certified cashier’s cheque and authorized credit cards.

What are the requirements for a swapper to work, What are the requirements ...

What are the requirements for a swapper to work? The swapper works on the highest scheduling priority. Firstly it will look for any sleeping method, if not found then it will

Explain the working of dynamic ram - computer memory, Explain the working o...

Explain the working of Dynamic RAM? A plain piece of hardware called a DRAM controller can be used to make DRAM behave more like SRAM and the job of the DRAM controller is to p

Define is a personality, Define is a Personality. In order to allow pro...

Define is a Personality. In order to allow programs coming other operating system to be run in Linux, Linux supports the idea of personalities. Every method is assign to an imp

How can we specify file transfer in a web page, Can we specify file transfe...

Can we specify file transfer in a Web page? Explain with the help of suitable example. Yes, file transfer can be given in a web page. The first field within a URL gives a proto

Define range which a normalised mantissa can signify, Now let's define rang...

Now let's define range which a normalised mantissa can signify. Let's presume that our present representations has normalised mantissa so left most bit can't be zero so it has to b

Cohesion and coupling, can i get a prepared ppt for this topic to present i...

can i get a prepared ppt for this topic to present it in a seminar??

How many tables can an append structure be assigned, To how many tables can...

To how many tables can an append structure be assigned. One table can be assigned to append structure.

Graphics, what is bitmap and pixmap

what is bitmap and pixmap

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