• A multilevel queue scheduling algorithm divides the ready queue in several separate queues, for example
• In a multilevel queue scheduling processes are lastingly assigned to one queue.
• The processes are permanently allotted to one another, based on some property of the process, for example
• Process type
• Memory size
• Process priority
• Algorithm choose the process from the engaged queue that has the highest priority, and run that process either
• Preemptive or Non-preemptively
• Every queue has its own scheduling algorithm or policy.

• Possibility 1
If every queue has absolute priority over lower-priority queues then no one process in the queue could run unless the queue for the highest-priority processes was all blank.
• As, in the above figure no process in the lot queue could run unless the queues for system processes, interrelting processes, and interactive editing processes will all blank.

• Possibility 2
If there is a time slice between the queues then each and every queue gets a convinced amount of CPU times, which it can then schedule between the processes in its queue. For instance;
• 80% of the CPU time to forefront queues using RR.
• 20% of the CPU time to backdrop queues using FCFS.
• Seeing as processes do not move between queues so, this plan has the advantage of low scheduling overhead, but it is inflexible.

Posted Date: 5/2/2012 8:58:51 AM | Location : United States

Ask an Expert

Related Discussions:- define Multilevel Queue Scheduling?, Assignment Help, Ask Question on define Multilevel Queue Scheduling?, Get Answer, Expert's Help, define Multilevel Queue Scheduling? Discussions

Write discussion on define Multilevel Queue Scheduling?
Your posts are moderated

Write your message here..

Related Questions

Flowcharts, what is a dry running of flow chart? what is a dry running of flow chart?

System hardware, what problems does one encounter when you have more pipeli... what problems does one encounter when you have more pipelines?

Central processing unit (cpu), Central Processing Unit (CPU): The CPU ... Central Processing Unit (CPU): The CPU is the physical device that controls computer operations. It is considered as the 'brain' of the computer system. The CPU comprises thre

Describe circuit switching and message switching, Question 1 List the Basi... Question 1 List the Basic essential components of a computer network Question 2 What are the functions of (i) Routers (ii) Bridges Question 3 What are the advantag

Physics, . State laws of transverse vibrations in stretched strings. Explai... . State laws of transverse vibrations in stretched strings. Explain how do you verify them using sonometer.

Define Multilevel Queue Scheduling?, • A multilevel queue scheduling algori... • A multilevel queue scheduling algorithm divides the ready queue in several separate queues, for example • In a multilevel queue scheduling processes are lastingly assigned to one

Open systems interconnection, Open Systems Interconnection (OS1): As t... Open Systems Interconnection (OS1): As there are many different protocols for LANs and WANs, communication between two different systems can be difficult. The International St

Processor, Processor: Processor plays major role in a computer. One sh... Processor: Processor plays major role in a computer. One should carefully decide about the type of processor and its speed before making a choice. Currently Core 2 Duo process

System software, SYSTEMS SOFTWARE Systems Software generally is ... SYSTEMS SOFTWARE Systems Software generally is the software which control the computers and other peripherals. Ex: MS DOS, Windows 95, Unix, NetWare and Windows NT et

Transmission control protocol, The TCP/IP networking protocol suite is so b... The TCP/IP networking protocol suite is so basically named for two of its very most and important protocols: Transmission Control Protocol online tutoring Indication Manage