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

Illustrates about metal fix, Illustrates about Metal Fix. A Metal Fix i...

Illustrates about Metal Fix. A Metal Fix implies that only the upper metal interconnects layers are influenced. Connections may be made or broken, but new cells may not be adde

The current image in gimp, How do we merge an image from a file to the curr...

How do we merge an image from a file to the current image in GIMP? Ans) Use "File then Open as Layers" menu command or just take the file to a window and drop it there. The file w

Define memory utilization factor, Memory utilization factor shall be comput...

Memory utilization factor shall be computed as? Ans. memory in use/total memory connected.

Determine in detail about mp3 - mpeg-3, Determine in detail about MP3 (MPEG...

Determine in detail about MP3 (MPEG-3) MPEG-3 uses an audio compression technology; it compresses CD-quality sound by a factor of about 10 while retaining most of the quality f

How do you detect if two 8-bit signals are same, By using XNOR gate if the ...

By using XNOR gate if the signals are similar then only the output will be one otherwise not.

Explain the meaning of bind socket primitive, Explain the meaning of BIND s...

Explain the meaning of BIND socket primitive The bind Primitiv: While created, a socket has neither a remote address nor a local address. A server utilizes the bind proce

Define hypertext verses hypermedia briefly, Define Hypertext verses Hyperme...

Define Hypertext verses Hypermedia briefly. Hypertext is fundamentally the same as regular text- this can be stored, read, searched or edited along with a significant exception

Explain the race around condition, Explain the Race Around Condition? C...

Explain the Race Around Condition? Consider the inputs of the JK flipflop j=1 and k=1 and Q=0 when a clock pulse of width tp is applied the output will change from 0 to 1 after

Explain the matlab working environment, This is the set of tools and facili...

This is the set of tools and facilities that you work with as the MATLAB user or programmer. It contains facilities for managing the variables in your workspace and importing and e

Smtp vs esmtp, what shortcomings of smtp are over come by esmtp?

what shortcomings of smtp are over come by esmtp?

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