Priority array, Computer Engineering

Assignment Help:

The runqueue is the list of runnable processes on a given processor. There is only one runqueue per processor. Each runqueue contains two priority arrays: Active and Expired. Each priority array contains one queue of runnable processes per priority level. Each array has 140 levels, thus 140 queues. A process with priority level 125 will go to the _125th _ queue. In this project, we will not implement all 140 queues. We will only implement a single queue. In the real Linux scheduler, each queue represents one priority level. In our project, we will have a single data structure. The active array contains processes that have yet to exhaust their time slice. Once their time slice is exhausted, it will go to the expired array. There is also an  IO queue. This queue is used to hold processes that are using IO. There will be no waiting for access to IO devices.

Thus, all the processes in the IO queue can decrease their IO burst in each clock tick.


Related Discussions:- Priority array

Determine what is the frame rate and frame duration, (i)  A multiplexer com...

(i)  A multiplexer combines four 100-Kbps channels using a time slot of 4 bits. Each Frame has the size of 16 bits. a)  Show the output with the four inputs as shown in the figu

Computer Architecture, As an advocate of CISC architecture to RISC architec...

As an advocate of CISC architecture to RISC architecture, what are the merits and demerits of CISC to RISC architecture

Define about the objects, Define about the Objects The object notation...

Define about the Objects The object notation is the same in basic form as that for a class. There are three differences among the notations, these are given below: With

Define message passing, Q. Define Message Passing? The PVM communicatio...

Q. Define Message Passing? The PVM communication model offers asynchronous blocking receive and asynchronous blocking send and nonblocking receive functions. In our terminology

Explain the uses of keyboards, Explain the uses of Keyboards An alphanu...

Explain the uses of Keyboards An alphanumeric keyboard for a graphics system is used primarily as a device for entering text strings. Keyboards can also be provided with featur

What do you mean by execution unit, Q. What do you mean by Execution Unit? ...

Q. What do you mean by Execution Unit? Execution unit performs all ALU operations. Execution unit of 8086 is of 16 bits. It also contains the control unit that instructs bus in

Difference between a substructure and an append structure, What is the diff...

What is the difference between a Substructure and an Append Structure? In case of a substructure, the reference originates in the table itself, in the form of a statement

What are the types of subroutines, What are the types of Subroutines? ...

What are the types of Subroutines? Internal Subroutines: The source code of the internal subroutines will be in the similar ABAP/4 program as the calling procedure (intern

How atoms differ from the arrangement of atoms in a liquid, Q. How does the...

Q. How does the preparation of atoms in mainly solids differ from the arrangement of atoms in a liquid? Answer:- The arrangement of atoms in solids are diverse from those

Describe all elements of a state-chart diagram, a. Initial State: The first...

a. Initial State: The first or the default state the object is in. It is indicated by a solid circle. b. State: All the states an object can go in are mentioned in this. It is

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