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

Translator for low level programming language, Translator for low level pro...

Translator for low level programming language were termed as? Ans. Translator for low level programming language is called as Assembler.

Which memory can not be accessed randomly, Which of following can not be ac...

Which of following can not be accessed randomly DRAM, SRAM, ROM or Magnetic tape ? Ans. Magnetic tape cannot be accessed randomly; it can only be accessed sequentially.

C++, what is polymorphism

what is polymorphism

What are the types of convergences, What are the types of convergences? ...

What are the types of convergences? Three different types of convergences are: a. The convergence of wireless and e-commerce technology b. The Convergence of E-Commerce a

What is fork swap, What is Fork swap? "Fork ()" is a system call to mak...

What is Fork swap? "Fork ()" is a system call to make a child process. When the parent process calls "fork()" system call, the child process is formed and if there is short of

Explain use of mpi functions with an example, Q. Explain use of MPI functio...

Q. Explain use of MPI functions with an example? include int main(int argc, char **argv) { int i, tmp, sum, s, r, N, x[100]; MPI_Init(&argc, &argv); MPI_Comm_size

What is garbage collection and what is it used for, In computer science, ga...

In computer science, garbage collection (GC) is a form of automatic memory management. The garbage collector, or just collector, attempts to reclaim garbage, or memory occupied by

Define process control block, Define Process Control Block (PCB). Pr...

Define Process Control Block (PCB). Process Control Block (PCB): Information related with each process is stored into Process control Block. a)      Process state b)

Describe the term- system analyst design, Describe the term- System analyst...

Describe the term- System analyst Design Once analysis has taken place and systems analyst has some idea of the scale of problem and what needs to be done, subsequent stage is

Determine the octal equivalent of decimal number, The octal equivalent of (...

The octal equivalent of (247) 10 is ? Ans. (247) 10 = (367) 8

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