What is write-back or copy-back protocol, Computer Engineering

Assignment Help:

What is write-back or copy-back protocol?

For a write operation using this protocol during write-hit: the method is to update only the cache and to mark it as updated with an associated flag bit, often called the modified or dirty bit. The main memory location of the word is updated later, when the block having this marked word is to be removed from the cache to make room for a latest block.

For a write-miss: the block having the addressed word is first brought into the cache, and then the deserved word in the cache is overwritten with the latest information.

 

 


Related Discussions:- What is write-back or copy-back protocol

Users to run programs at same time, A computer system that allows multiple ...

A computer system that allows multiple users to run programs at similar time   Multi tasking system

Combined parallel work-sharing constructs, Q. Combined Parallel Work-sharin...

Q. Combined Parallel Work-sharing Constructs? Combined parallel work sharing constructs are shortcuts for specifying a work sharing construct nested instantaneously in a parall

System analysis and design, write an algorithm on railway reservation ticke...

write an algorithm on railway reservation ticket window

Explain in detail about the dynamic timing, Explain in detail about the Dyn...

Explain in detail about the Dynamic timing a. Design is simulated in full timing mode. b. Not all possibilities tested, as it is dependent on input test vectors. c. Simul

Illustrate master-slave flip-flop, Q. Illustrate Master-Slave Flip-Flop? ...

Q. Illustrate Master-Slave Flip-Flop? Master slave flip-flop comprise two flip-flops. One is master flip-flop and other one is known as slave flip-flop. Fig below shows impleme

Discrete mathmetics and structures, how to prove the partial order R is a t...

how to prove the partial order R is a total order in discrete mathmetics and structures by topological sorting method in c programming

Feature Extraction and clustering, Hi, It is a data mining project I have ...

Hi, It is a data mining project I have a CSV file that has numbers data set. The data set contains images of handwritten digits. Recognizing handwritten digits is already a mature

Discuss primary elements of supply chain management models, Discuss the pri...

Discuss the primary elements of Supply Chain Management models. Primary Elements of Supply Chain Management Models are discussed in below: They are fundamentally concerned a

What is machine.config, What is Machine.config?  Machine configuration ...

What is Machine.config?  Machine configuration file: The machine. config file contains settings that apply to the whole computer.  The machine.config, which can be found in the

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