Explain busy waiting semaphores, Computer Engineering

Assignment Help:

Explain busy waiting semaphores.

Weak, Busy-wait Semaphores:

  • The simplest method to implement semaphores.
  • Useful while critical sections last for a short time, or we have many CPUs.
  • S initialized to positive value to permit someone in at the beginning.
  • S is an integer variable which, apart from initialization, can simply be accessed through 2 atomic and equally exclusive operations:

wait(s):
while (s.value != 0);
s.value--;
signal(s):
s.value++;
All occurs atomically that is, wrap pre protocols and wrap post protocols.


Related Discussions:- Explain busy waiting semaphores

What a header represents in CGI document, A Header in CGI document can repr...

A Header in CGI document can represent? A header into CGI document can show format of the document and the location if document used to various URL.

What is master clock signal in control unit, Q. What is Master Clock Signal...

Q. What is Master Clock Signal in Control Unit? The Master Clock Signal: This signal causes micro-operations to be executed in a square. In a single clock cycle either a single

Length property of array , DEscribe a console application to show all the a...

DEscribe a console application to show all the arguments passed tocommand line whereas running the application. The user can pass anynumber of arguments that should be shown. Use l

What is data in computers, Q. What is data in computers? In modern digi...

Q. What is data in computers? In modern digital computers data is signified in binary form by employing two symbols 0 and 1. These are known as binary digits or bits however da

Explain about data registers, Q. Explain about data registers? The data...

Q. Explain about data registers? The data registers are used just for storing intermediate results or data and not for operand address calculation. Some dedicated address re

Excess 3 codes, Explain Excess 3 Codes Ans. Excess 3 Codes 1....

Explain Excess 3 Codes Ans. Excess 3 Codes 1. This is the other form of BCD code. All decimal digits are coded in 4 bit binary code. 2. The code for all decimal di

Define the role of organizationin computer architecture, Define the role of...

Define the role of organizationin computer architecture The organization is the set of resources that realizes the architecture which include the CPU, the memory and I/O contro

Illustrate the following list of consideration of Laptop, Illustrate the fo...

Illustrate the following list of consideration of laptop computers The following is a list for consideration: -  The processor must consume as little power as possible thus

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

Computer architecture, what is complex instruction set computer and reduce...

what is complex instruction set computer and reduced complex instruction set computer

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