Explain mutual-exclusion implementation with semaphores, Computer Engineering

Assignment Help:

Disadvantage and Advantage of mutual-exclusion implementation with semaphores.

Disadvantage: Mutual-exclusion solutions specified by semaphores require busy waiting.

That is, even as a process is in its critical section, any other process which tries to enter its critical section should loop continuously in the entry code. Therefore, busy waiting wastes CPU cycles that several other process might capable to use productively.

Advantage: This kind of semaphore is also termed as spinlock as the process "spins" while waiting for lock. Spinlocks are helpful in multiprocessor systems as no context switch is needed when a process should wait on a lock. Therefore, when locks are expected to be held for short times, spinlocks are helpful.


Related Discussions:- Explain mutual-exclusion implementation with semaphores

What are the principal shortcomings of mpi, (a) What are the principal sho...

(a) What are the principal shortcomings of MPI with respect to the deployment between companies and institutions? (b) Propose a possible solution for the parallel computing in

Important parameters for transmitting data, For this project, we hope to us...

For this project, we hope to use the basic idea of InfraRed (IR) communication for our television in ES103.  In ES103, we have a Sony large-screen television that we hope to commun

Explain the pdca cycle, Explain the PDCA cycle. PDCA is a four step pro...

Explain the PDCA cycle. PDCA is a four step problem solving method. The following are the description of each step: 1. P - Plan (Devise your Plan). Identify an opportunity a

What is a parsing, what is parsin? Source programmed statements are ob...

what is parsin? Source programmed statements are observed as tokens, recognizing, building block of language the task of scanning the source statement and classifying the diff

Show encoding data options, Q. Show Encoding data options? PVM uses SUN...

Q. Show Encoding data options? PVM uses SUN's XDR library to make a machine independent data format if you request it. Settings for encoding option are:  PvmDataDefault: Use

What is a program counter, It is a 16 bit special function register in the ...

It is a 16 bit special function register in the 8085 microprocessor. It remains track of the next memory address of the instruction that is to be implemented once the implementatio

What is graceful degradation, What is graceful degradation? In multipro...

What is graceful degradation? In multiprocessor systems, failure of one processor will not halt the system, but only slow it down by sharing the work of failure system by other

Electrochemistry and batteries, differentiate between concentration cells a...

differentiate between concentration cells and electrolytic cells with suitable examples?

What is the use of system.xml.xlinq.dll, System.XML.XLinq.dll has classes t...

System.XML.XLinq.dll has classes to provide functionality to use LINQ with XML.

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