Explain non-pre-emptive algorithms, Computer Engineering

Assignment Help:

Explain non-pre-emptive algorithms?  

Non preemptive algorithms: In this algorithm a job is provided to CPU for execution as long as the job is non-completed the CPU cannot be provided to other processes.

There are three kinds of non preemptive algorithms.

(i) First-come-first-serve (FCFS): This is simplest CPU scheduling algorithm. Along with this scheme, the process which requests the CPU at first is provided to the CPU at first. The implementation of First Come First Serve is easily managed through with a FIFO queue.

(ii) Shortest-job-first (SJF): It is also termed as SPN (shortest process next). In this algorithm the burst times of all the jobs that are waiting in the queue are compared. The job that is containing the least CPU execution time will be provided to the processor at first. In such turnaround time and waiting times are least. It also suffers along with starvation. Indefinite waiting time is termed as starvation. This is complex than FCFS.

(iii) Priority: In this method every job is related with CPU execution time, arrival time and the priority. Here the job that is containing the higher priority will be specified to the execution at first. It also suffers with starvation. And through using aging technique starvation effect may be decreased.


Related Discussions:- Explain non-pre-emptive algorithms

What is algorithm design technique, What is Algorithm Design Technique? ...

What is Algorithm Design Technique? An  algorithm  design  method  is  a  general  approach  to  solving  problems  algorithmically  that  is applicable to a variety of proble

How much frequency is centered in typical human voice, Typical human voice ...

Typical human voice is centered around                   Hz. (A)  200-400                                     (B)  280-3000  (C)  400-600

Mating - canonical genetic algorithm, Mating: Therefore once our GA ag...

Mating: Therefore once our GA agent has chosen the individuals lucky sufficient as actually there  fit enough to produce offspring then we next determine how they are going to

Describe the concept of value creation, I am required to write about the im...

I am required to write about the impact of the internet on firms with reference to the following questions: 1. Describe the concept of value creation. Explain how a firm can use

Show the steps of execution of instructions, Q. Show the steps of execution...

Q. Show the steps of execution of instructions? Fetch First Instruction into CPU: Step 1: Find/calculate the address of first instruction in memory. In this machine illust

Conversion of fractional number into its binary number, Conversion of fract...

Conversion of fractional number 0.6875 into its equivalent binary number ? Ans. Multiply the fractional number 0.6875 with 2 until the remainder becomes 0 that is, Ther

Signaling pvm process, Q. Signaling PVM process? int pvm_sendsig( ...

Q. Signaling PVM process? int pvm_sendsig( int tid, int signum ) Transmits a signal to other PVM process. tid is task identifier of PVM process to receive signal.

Web technology, Write short notes on Event Model.

Write short notes on Event Model.

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