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

Why pic18f452 was used in the project designed, I have used the PIC18F452 m...

I have used the PIC18F452 microcontroller for both the main micro and the interface chip device because of it enhanced features that can be used to meet the specification required

Combinatorial and scheduling problems, Combinatorial and Scheduling Proble...

Combinatorial and Scheduling Problems: One class of problems is concerned with specifying optimal scheduled. A classical example is the Travelling Salesperson Problem where

Define clock rate, Define clock rate? The clock rate is given by, R=1/P...

Define clock rate? The clock rate is given by, R=1/P, where P is the length of single clock cycle.

Basic characteristics of an experts system, An experts systems must perform...

An experts systems must perform well that is achieve the same levels of performance in the domain of interest that human experts can achieve. But simply producing good so

Example of asymptotic notations, Q. Example of asymptotic notations? Th...

Q. Example of asymptotic notations? The function f (n) belongs to the set  (g(n)) if there exists positive constants c such that for satisfactorily large values of n we have 0

What is the size of the variant data type, The Variant data type has a nume...

The Variant data type has a numeric storage size of 16 bytes and can have data up to the range of a Decimal, or a character storage size of 22 bytes (plus string length),and can ke

How cloud can be used in event schedules, How cloud can be used in Event Sc...

How cloud can be used in Event Schedules and Management with an example. Web-based calendars can be used to post dates and schedules for specific public events, such as school

Compare excess 3 codes and gray code, Compare excess 3 codes and gray cod...

Compare excess 3 codes and gray code. Ans. Excess 3 Codes 1. This is the other form of BCD code. All decimal digits are coded in 4 bit binary code. 2. The code

Why we need number systems, Q. Why we need number systems? Number syste...

Q. Why we need number systems? Number system is used to signify information in quantitative form. Some of the general number systems are octal, decimal, hexadecimal and binary.

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