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

Security analysis, Security Analysis: Suppose you are a young securiti...

Security Analysis: Suppose you are a young securities analyst, working in a small brokerage firm. You have access to publicly available information relevant to valuation of th

How a pointer variable declared in c, How a pointer variable declared in C ...

How a pointer variable declared in C ? Why is it sometimes desirable to pass a pointer to a function as an argument? A pointer is a variable which contains the address in memor

Dataset accept changes and data adapter update method, Explain Dataset Acce...

Explain Dataset Accept Changes and Data Adapter Update methods?  Data Adapter Update method Calls the respective INSERT, UPDATE, or DELETE statements for every inserted, update

What are the characteristics of semiconductor ram memories, What are the ch...

What are the characteristics of semiconductor RAM memories? They are available in a wide range of speeds. Their cycle time range from 100ns to less than 10ns. The

Difference between char a[] = "string", What is the difference between char...

What is the difference between char a[] = "string"; and char *p = "string";? Ans) In the first case 6 bytes are assigned to the variable a which is fixed, where as in the secon

..binary tree, draw a binary tree from its inorder and preorder traversal s...

draw a binary tree from its inorder and preorder traversal sequences given as follows: inorder: d b g e h a c n f preorder: a b d e g h c f n

Classical approach - canonical genetic algorithm, Classical approach - Cano...

Classical approach - Canonical genetic algorithm: However returning to the classical approach, as there example, whether solving a particular problem involved finding a set of

Fundamental change to the cloud to support mobility, Question: The abun...

Question: The abundance of resources and the ease of access to cloud computing can help to bridge the gap the resource gap for mobile computing. Nevertheless some fundamental c

Name the numerous household devices, Name the Numerous household devices ...

Name the Numerous household devices Numerous household devices now use microprocessors to control their different functions. The following is just a sample of common devices (d

Plot2fnhand, Write a function "plot2fnhand" that will receive 2 function ha...

Write a function "plot2fnhand" that will receive 2 function handles as input arguments, and will show in two Figure Windows plots of these functions, with the function names in the

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