Explain the features of major scheduling algorithms, Computer Engineering

Assignment Help:

Explain the Features of Major scheduling algorithms.

The Features of Major scheduling algorithms is given below:

  1. FCFS - i.e. First come first served scheduling
  2. Shortest Job First scheduling (SJF)
  3. Priority scheduling
  4. Round robin scheduling

First come first served scheduling-

  • Process which request the CPU first is assigned CPU first
  • Managed through FIFO queue.
  • Average waiting time is usually long
  • Non-pre-emptive
  • For time-sharing systems, troublesome

Shortest job first (SJF)

  • The process that has the smallest CPU burst time gets first
  • This increases the waiting time of long processes.
  • Problem - difficult to predict the length of subsequent CPU request
  • May be non-pre-emptive or be preemptive

Priority

  • Highest priority process finds CPU allocation first
  • The larger the CPU burst then lowers the priority
  • Priority can be explained internally or externally
  • Can be non-pre-emptive or preemptive
  • Problem-starvation i.e. blocking of process
  • Solution-aging - raises the priority

Round robin

  • Time quantum from 10 100 millisecond is described
  • Processes are seem in circular queue
  • CPU allocation is divided between processes accordingly
  • Performance depends heavily upon time quantum
  • Pre-emptive

Related Discussions:- Explain the features of major scheduling algorithms

Self knowledge - characteristics of an experts system, An experts system ...

An experts system has knowledge that lets it reason about its own operations plus a structure that simplifies this reasoning process. For example if an expert system

Define the information system, Define the Information System Growi...

Define the Information System Growing sophistication in products and markets is driving the organisational requirement for increasing amounts of information. This req

Prolog, Prolog: Still we can take our card game from the previous lect...

Prolog: Still we can take our card game from the previous lecture like a case study for the implementation of a logic-based expert system. So there the rules were: four cards

Performance evaluation-parallel computing, Performance Evaluation In th...

Performance Evaluation In this part, we talk about the primary attributes used to measure the performance of a computer system. Unit 2 of block 3 is totally devoted to performa

Number square, Ask question #MinimYour professor wants you to fill a two-di...

Ask question #MinimYour professor wants you to fill a two-dimensional N by N matrix with some numbers by following a specific pattern. According to his explanation as in the figure

Explain about memory buffer register, Q. Explain about Memory Buffer Regist...

Q. Explain about Memory Buffer Register? Memory Buffer Register (MBR): It's a register that comprises the data to be written in memory (write operation) or it obtains the data

Explain the boolean equations for logic circuits, Explain The Boolean Equat...

Explain The Boolean Equations for Logic Circuits? A Boolean equation is the mathematical representation of a logic circuit using standard Boolean terms. All the logic gates (AND,

Why is xml such an important development, It takes away two constraints whi...

It takes away two constraints which were holding back Web developments: 1. Dependence on a one, inflexible document type (HTML) which was being much abused for tasks it was neve

Prolog programming language, Prolog Programming Language : Probably pr...

Prolog Programming Language : Probably programming languages are procedural: than the programmer specifies exactly the right instructions (algorithms) required to get an agent

Parallel computer architecture , Parallel Computer Architecture Intr...

Parallel Computer Architecture Introduction We have talked about the classification of parallel computers and their interconnection networks in that order in units 2 and

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