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

is risc always fast, It is fast because it has got separate program and da...

It is fast because it has got separate program and data memory(highly pipelined architecture)

Documentation introduction, Documentation is done to give others with infor...

Documentation is done to give others with information and ease maintenance. The best documentation is done in the headers (function and scripts) and directly in the code. Any usefu

Minimum degree of t=1 for a b-tree, Why don't we permit a minimum degree of...

Why don't we permit a minimum degree of t=1 for a B-tree? According to the definition of B-Tree, a B-Tree of order n means that every node in the tree has a maximum of n-1 keys

Define congestion, Define Congestion. Congestion: This is uneconomic ...

Define Congestion. Congestion: This is uneconomic to give sufficient equipment to carry all the traffic which could possibly be offered to a telecommunication system. Inside

Multithreaded architecture, Q. Multithreaded Architecture? It is clear ...

Q. Multithreaded Architecture? It is clear at the moment if we provide a lot of contexts to multiple threads then processors with numerous contexts are known as multithreaded s

The new optimal solution, Electrocomp's management realizes that it forgot ...

Electrocomp's management realizes that it forgot to contain two critical constraints. In particular, management decides that to make sure an adequate supply of air conditioners for

Design requirements of combinational logic, What are the requirements to de...

What are the requirements to design Combinational Logic ? Ans . Design Requirements of Combinational Logic:- (i) By the specifications of circuit, we find out the

Autonomous rational an agents, Autonomous Rational an Agents: In many ...

Autonomous Rational an Agents: In many cases, it is inaccurate to talk about a single program or a single robot, as the multi-purpose and multi-tasking system of hardware and

What is artificial intelligence recognition, There are two goals to AI; the...

There are two goals to AI; the major one is to produce an artificial system that is about as good as or good than a human being at dealing with the actual world. The second goal is

Explain the working of hundred-line exchange, In a hundred-line exchange 24...

In a hundred-line exchange 24 two-motion selectors are used. Draw the schematic you suggest for this exchange and explain its working. How many simultaneous calls can be made durin

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