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

Determine about the three-state gate, Determine about the three-state gate ...

Determine about the three-state gate A three-state gate is a digital circuit which shows three states. Two of them are equivalent to logic 1 and 0.  The third one is a high im

Effective branching rate - heuristic searches, Effective Branching Rate: ...

Effective Branching Rate: Assessing heuristic functions is an important part of "AI" research: a particular heuristic function may sound such a good idea, but in practice give

Adaptive mechanism in Ais, pls give the list of adaptive mechanism in arti...

pls give the list of adaptive mechanism in artificial immune system

Define about the objects, Define about the Objects The object notation...

Define about the Objects The object notation is the same in basic form as that for a class. There are three differences among the notations, these are given below: With

Explain quadratic probing with respect to hashing technique, Quadratic prob...

Quadratic probing: In the above case when the first insertion is made the probability of latest element being inserted in a certain position is 1/n    where n is the size of the a

Explain relative addressing scheme, Q. Explain Relative Addressing Scheme? ...

Q. Explain Relative Addressing Scheme? In this addressing technique the register R is the program counter (PC) which contains the address of current instruction being executed.

Determine if the product of two integers are even, If the product of two in...

If the product of two integers a and b is even after that prove that either a is even or b is even. Answer: It is illustrated that product of a and b is even so let a * b = 2n.

Explain the transport layer in detail, Explain the transport layer in detai...

Explain the transport layer in detail. Transport Layer: The transport layer controls and makes sure the end-to-end integrity of the data message propagated by the network am

Existential introduction, Existential Introduction: Now if we have any...

Existential Introduction: Now if we have any sentence as, A, and variable, v, that does not occur in A, so then for any ground term, g, such occurs in A, than we can turn A in

Graphic symbol of S-R flip-flop, Q. Graphic symbol of S-R flip-flop? R...

Q. Graphic symbol of S-R flip-flop? R-S Flip flop - Graphic symbol of S-R flip-flop is displayed in Fig below. It has 3 inputs S (set), R (reset) and C (for clock). Q(t+1) is

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