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

Message passing programming, Message passing is possible the most widely us...

Message passing is possible the most widely used parallel programming paradigm these days. It is the most portable, natural and efficient scheme for distributed memory systems. It

Ida* search - artificial intelligence, IDA* Search - artificial intelligenc...

IDA* Search - artificial intelligence: A* search is a sophisticated and successful search strategy. In fact, a problem with A* search is that it must keep all states in its me

Bidirectional search, Bidirectional Search: We've concentrated so far ...

Bidirectional Search: We've concentrated so far on the searches where the point of view for the search is to find a solution, but not the path to the solution. Like any other

What is cartridge drive, Q. What is Cartridge Drive? Cartridge Drive: ...

Q. What is Cartridge Drive? Cartridge Drive: A cartridge is a protective covering or case which is used to hold a magnetic tape, disk, a printer ribbon or toner. Contents are

How to join to mwseries from power builder 8.0, Using CICS Transaction Gate...

Using CICS Transaction Gateway we can join MQ Series with Power Builder 8.0

Sosail studies, whitch goods did the new england colonies exportto england ...

whitch goods did the new england colonies exportto england and what did they get in return

Explain the optimization of data access paths, Explain the Optimization of ...

Explain the Optimization of data access paths Optimization is a very significant aspect of any design. The designer must do the followings for optimization: i) Add redundan

Secondary storage - computer architecture, Secondary storage: Secondar...

Secondary storage: Secondary storage (or external memory) differs from primary storage in that aspect it is not accessible by the CPU directly. The computer typically uses its

High level language program characteristics, Q. High Level Language Program...

Q. High Level Language Program Characteristics? So it is clear that new architectures must support high-level language programming. A high-level language system can be implemen

How can i delete a file, The Standard C Library function is removing. (This...

The Standard C Library function is removing. (This is thus one of the few questions in this section for which the answer is not ''It's system-dependent.'') On older, pre-ANSI Unix

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