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

Explain common channel signalling, Common channel signalling              ...

Common channel signalling              ? Common channel signalling requires no additional transmission help or facilities.

Challenges facing operations managers - information systems, Challenges Fac...

Challenges Facing Operations Managers - Information Systems While information systems should be seen as tools that enable better performance their implementation also brings a

What is actor, What is actor? An actor is a direct external user of a s...

What is actor? An actor is a direct external user of a system. Every actor shows objects that behave in a particular way towards systems. Actors are directly linked to system.

What is turnaround time, What is turnaround time? Turnaround time is th...

What is turnaround time? Turnaround time is the interval from the time of submission to the time of completion of a process. It is the sum of the periods spent waiting to get i

Describe _blank, Q. Describe _blank, _self, _parent and _top tags? Thes...

Q. Describe _blank, _self, _parent and _top tags? These all are attributes of tag. The below example describes each of these attributes. <

What is simd, What is SIMD? Single Instruction stream, Multiple Data st...

What is SIMD? Single Instruction stream, Multiple Data stream (SIMD) shows an organization that contains many processing units under the supervision of a common control unit. A

Determine if the product of two integers are even, If the product of two in...

If the product of two integers a and b is even after that prove that either a is even or b is even. Answer: It is illustrated that product of a and b is even so let a * b = 2n.

How to use http and world wide web, Q. How to use Http and World Wide Web? ...

Q. How to use Http and World Wide Web? Http and World Wide Web One of the most frequently used services on the Internet is the World Wide Web (WWW). The application proto

Task and parallel task, Task A logically discrete sector of a computati...

Task A logically discrete sector of a computational effort. A task is naturally a program or program-like set of instructions that is implemented by a processor.  Parallel

Explain fundamental instruction set characteristics, Q. Explain fundamental...

Q. Explain fundamental instruction set characteristics? Let's look into a number of fundamental instruction set characteristics: The operands can be addressed in memory,

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