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

Define compilers with high level programming language, Define Compilers wit...

Define Compilers with High Level Programming Language? All high-level programming language (except strictly interpretive languages) comes with a compiler. Effectively the compi

Determine the method for updating the main memory, The method for updating ...

The method for updating the main memory as soon as a word is removed from the Cache is known as  (A) Write-through                  (B) write-back   (C) protected write

What are inertial and non-inertial frame of references, Q. What are inertia...

Q. What are inertial and non-inertial frame of references? (i) Inertial (or) unaccelerated frames: Bodies in this frame follow Newton's law of intertia as well as othe

Find out the correction to be applied in decimal adder, The correction to b...

The correction to be applied in decimal adder to the generated sum is ? Ans. 00110 is the generated sum when the correction to be applied in decimal adder. While the 4 bit su

Datastructure, deque insertion and deletion ..

deque insertion and deletion ..

Explain cgi standard, Explain CGI standard. The CGI Standard: Techno...

Explain CGI standard. The CGI Standard: Technology utilized for building dynamic web documents is termed as Common Gateway Interface (CGI). The CGI standard gives how a serv

Illustrate header section of a device driver, Q. Illustrate Header section ...

Q. Illustrate Header section of a device driver? Header comprises information which allows DOS to identify the driver. It also comprises pointers which allow it to chain to ot

Explain the types of hardware used in supermarkets, Explain the types of ha...

Explain the types of hardware used in supermarkets These use many types of specialist I/O hardware. For instance: -  Bar code readers/scanners (to read product details and e

Determine 127.0.0.1 is which type of address, 127.0.0.1 is a? 127.0.0.1...

127.0.0.1 is a? 127.0.0.1 it is a loop-back address.

own subprogram, Create your own Subprogram that uses at least 1input param...

Create your own Subprogram that uses at least 1input parameter and a return parameter. You decide the theme. You should give the pseudocode and an example Subroutine call. Be sure

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