Write hit policies, Computer Engineering

Assignment Help:

Write Hit Policies:

  • Write through

o   Update next level on every write

o   Cache is always clean

o   A lots of traffic to next level (mostly write)

  • Write back

o   Write to cache and mark block dirty

o   Update primary memory to eviction

o   Less traffic to next ,but more complicated eviction and coherence

  • Reservation problem

o   Reads use directly and data array at the same time

o   Write use directory first then data array

o   How to we pipeline to permit one read or write per cycle?    

 


Related Discussions:- Write hit policies

Which is valid syntax of the fork and join primitive, Which is valid syntax...

Which is valid syntax of the Fork and Join Primitive? Ans. A valid syntax of the Fork and Join Primitive is as given below: Fork Join

Functions for mpi environment, Q. Functions for MPI Environment? Int M...

Q. Functions for MPI Environment? Int MPI_Finalize (void) It ends the MPI environment. Any MPI function cannot be called after MPI_Finalize. Each MPI process belongs to on

What do you mean by instruction cycle, Q. What do you mean by instruction c...

Q. What do you mean by instruction cycle? We have considered the instruction execution in previous section. Now let's consider more about different types of instruction executi

What are the major characteristics of a pipeline, What are the major charac...

What are the major characteristics of a pipeline? The major characteristics of a pipeline are: a) Pipelining cannot be executed on a single task, as it works by splitting mu

Describe the three mapping techniques, Describe the three mapping technique...

Describe the three mapping techniques used in cache memories with suitable Example. The cache memory is a fast memory that is inserted among the larger slower main memory and t

What is home banking, Home Banking: E-commerce is used in Home Banking ...

Home Banking: E-commerce is used in Home Banking as single call or single click. Online banking (Internet banking) is a term used for performing transactions, payments etc. ove

What is synchronous transmission, What is synchronous transmission? In ...

What is synchronous transmission? In synchronous transmission the two units share a common frequency and bits are transmitted continuously at the rate dictated  by clock pulses

Limitations of execution of instructions, Q. Limitations of execution of in...

Q. Limitations of execution of instructions? 1. Size of memory shown in 16 words while instruction is capable of addressing 210 =1 K words of Memory. However why 210 since 10 b

Difference between absolute and relative path, What is the difference betwe...

What is the difference between absolute and relative path name of a file? Absolute path name: This is listing of the directories and files from the root directory to the i

Determine the bandwidth required for transmission, A PCM system uses 8 bits...

A PCM system uses 8 bits per sample and the analog signal is limited to 4.3 kHz. The PCM data is transmitted using (a) BFSK and (b) ASK. Determine the bandwidth required for transm

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