Explain the different sub-functions of process scheduling, Computer Engineering

Assignment Help:

Explain the different sub-functions of Process Scheduling.

Process scheduling contains the subsequent sub-functions:

1. Scheduling: Chooses the process to be executed next on the CPU. The scheduling function uses information from the Process Control Block's and selects a process based upon the scheduling policy in force.

2. Dispatching: Sets up execution of the chosen process on the CPU. Such function involves setting up the execution environment of the process that are selected, and loading information from the PSR and registers fields of the selected into the CPU.

3. Context saves: Saves the status of a running process while its execution is to be suspended. This function executes housekeeping whenever a process releases the center processing unit or is pre-empted.

The demonstrated diagram illustrates the use of scheduling sub functions:

Occurrences of an event invoke the context save function. The kernel instantly processes the event which has occurred. The scheduling function is instantly invoked to select a process for execution upon the CPU. The dispatching function arranges execution of the selected function on the center processing unit.

749_necessary conditions for Deadlock.png


Related Discussions:- Explain the different sub-functions of process scheduling

Illustrate code segment with example, CODE SEGMENT ; Set DS register ...

CODE SEGMENT ; Set DS register MOV AX, DATA     ;    boiler plate code to set the DS register so that the MOV DS, AX          ;    program can access the data segment.

What factors influences the bus design decisions, What factors influences t...

What factors influences the bus design decisions? 1.  Data Location: Device selection, address of data with in device( track, sector etc) 2.  Data transfer: Amount, rate to

Cn, What is the basic requirement for establishing VLANs?

What is the basic requirement for establishing VLANs?

What are difference between mealy and moore state machine, What are differe...

What are difference between Mealy and Moore state machine? Difference between Mealy and Moore state machine: 1) Mealy and Moore models are the fundamental models of state ma

Explain the different page replacement policies, Explain the different page...

Explain the different page replacement policies. Various page replacement algorithms are briefly explained below: 1. First-in, first-out FIFO page replacement algorith

Overflow condition in linked list, Overflow condition in linked list may ha...

Overflow condition in linked list may happen when attempting to Make a node when free space pool is empty.

K-nearest neighbor for text classification, Assignment 2: K-nearest neighbo...

Assignment 2: K-nearest neighbor for text classification. The goal of text classification is to identify the topic for a piece of text (news article, web-blog, etc.). Text clas

Define the half duplex transmission, Define the Half Duplex Transmission ...

Define the Half Duplex Transmission A half-duplex channel can receive andsend, but not at the same time. It's like a one-lane bridge where two-way traffic should give way in

Returns and procedures definitions in 8086, Q. Returns and Procedures defin...

Q. Returns and Procedures definitions in 8086? 8086 microprocessor supports RET and CALL instructions for procedure call. CALL instruction not only branches to indicate address

What is cable modem, Q What is Cable Modem? One more way of accessing I...

Q What is Cable Modem? One more way of accessing Internet currently being developed is use of cable modems. These require that you subscribe to a cable service as well as allow

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