Explain busy waiting semaphores, Operating System

Assignment Help:

Explain Busy Waiting Semaphores

Weak, Busy-wait Semaphores

a) The simplest way to implement semaphores.

b) Useful while critical sections last for a short time, or we comprise lots of CPUs.

c) S initialized to positive value (to permit someone in at the beginning).

d) S is an integer variable that, aside from initialization, can only be accessed by 2 atomic and mutually exclusive operations: 

wait(s):

while (s.value != 0);

s.value--;

signal(s):

s.value++;

 All happens atomically that is wrap pre and post protocols.


Related Discussions:- Explain busy waiting semaphores

Linux, shell script that accepts two directory names as arguments and delet...

shell script that accepts two directory names as arguments and delete those file in the second directory that are identical to the file in the first

Deadlock, what are the overall concepts of deadlock

what are the overall concepts of deadlock

Capability lists are typically kept within the address space, Q. Capabilit...

Q. Capability lists are typically kept within the address space of the user. How does the system make sure that the user cannot modify the contents of the list? Answer: An ap

Design a android application, As mentioned earlier, the game engine will b...

As mentioned earlier, the game engine will be used as the base of developing the Go game for the Android. This includes improving logic of the game, design good graphics and optim

Socket, socket based fortune teller sever.your program should create a serv...

socket based fortune teller sever.your program should create a server that listens to a specific port when a client receives a connection the server should respond with a random fo

What is a dispatcher, What is a Dispatcher? The dispatcher is the modul...

What is a Dispatcher? The dispatcher is the module that gives control of the CPU to the process selected by the short- term scheduler. This function includes: Switching

What is an operating system and its type, What is an operating system and w...

What is an operating system and what are the different types of operating systems? Operating System An Operating System or OS is a software program that allows the compute

Explain disadvantages of the two-level directory, How do we overcome the di...

How do we overcome the disadvantages of the two-level directory? Give links from one user directory to another, creating path names; system files become available by letting th

CPU, TURNAROUND TIME

TURNAROUND TIME

Define properties of distributed operating system, Define properties of Dis...

Define properties of Distributed operating system Distributed:- This system distributes computation among several physical processors. The processors do not share memory or a

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