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

Differentiate between EPROM and EEPROM, Differentiate between EPROM and EEP...

Differentiate between EPROM and EEPROM. EPROM: The meaning of this term is Erasable PROM. This can be reprogrammed through first erasing the existing program. EPROM uses N-MO

Discuss primary elements of supply chain management models, Discuss the pri...

Discuss the primary elements of Supply Chain Management models. Primary Elements of Supply Chain Management Models are discussed in below: They are fundamentally concerned a

What are the update types possible, What are the update types possible? ...

What are the update types possible? The following update types are possible: Update type A: The matchcode data is updated asynchronously to database changes. Update

Logical drives is it possible to fit onto a physical disk, How many logical...

How many logical drives is it possible to fit onto a physical disk? Ans) Maximum of 24 logical drives can be fit into physical disk. The extended partition can only have 23 lo

What are the different database integrities, What are the different databas...

What are the different database integrities? Semantic Integrity. Relational Integrity. Primary Key Integrity. Value Set Integrity. Foreign Key integrity and

Describe about the forms-DBMS, Describe about the Forms- DBMS Forms ar...

Describe about the Forms- DBMS Forms are generally known as data entry screens as they are user interface that allows data in the tables to be viewed, edited or entered. Forms

Define technique of improving priority of process wait queue, is a techniqu...

is a technique of improving the priority of process waiting in Queue for CPU allocation? Ageing is a technique of enhancing the priority of process waiting in Queue for CPU all

Find simplified function f and implement, Q. Find simplified function F and...

Q. Find simplified function F and implement that function using only NAND gates. 1. F(A,B,C) = (A+B) (A'+B+C') (A'+B'+C') 2. F (A,B,C) = A'B'C'+B'CD'+A'BCD'+AB'C' 3. F(X,Y

Set up to use parallel virtual machine, Q. Set up to Use parallel virtual m...

Q. Set up to Use parallel virtual machine? PVM employs two environment variables when starting and running. Each and every PVM user needs to set these two variables to employ P

What are the 2 ieee standards for floating point numbers, What are the 2 IE...

What are the 2 IEEE standards for floating point numbers? 1.single 2.double

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