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 is post in terms of bios, For the one who still has no idea about the ...

For the one who still has no idea about the BIOS on your PC, notice when you first turn on your PC or laptop a few screens pop up. It may be a logo such as DELL or HP or ASUS, Tyan

Application and factors related to scanners, Q. Application and factors rel...

Q. Application and factors related to Scanners? When you purchase a scanner there are various factors which can be looked at: Compatibility of Scanner with your Computer, The T

What are the various design constraints, What are the various Design constr...

What are the various Design constraints used while performing Synthesis for a design? 1. Make the clocks (frequency, duty-cycle). 2. Explain the transition-time requirements

Explain time division switching, Explain Time Division Switching. Ti...

Explain Time Division Switching. Time Division Switching: A switching component can be shared at the same time with number of active speech circuits. It is the principle of

Explain a multiprocessing operating system, Explain a multiprocessing opera...

Explain a multiprocessing operating system? A multiprocessing system is a computer hardware configuration which contains more than one independent processing unit. Multiprocess

How to create dlq rules table, DLQ - Dead Letter Queue If an applicati...

DLQ - Dead Letter Queue If an application tries to put a message to one more application and if it is not delivered then it goes to the DLQ. So DLQ is not anything but all und

Explain the term - integrity, Explain the term - Integrity In most c...

Explain the term - Integrity In most cases, corporate data should remain unchanged by third parties, so the system should be capable of ensuring that only authorised personn

Queue, write a program insert and remove value in queue.

write a program insert and remove value in queue.

TIME COMPLEXITY, calculate the time complexity of a=(b/c) operation in stac...

calculate the time complexity of a=(b/c) operation in stack

Describe about general-purpose microprocessor, Q. Describe about general-pu...

Q. Describe about general-purpose microprocessor? Keeping rapidity with electronics as more and more components were fabricated on a single chip fewer chips were required to ma

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