Explain how the system can deal with the starvation problem, Operating System

Assignment Help:

Q. Can a system detect that some of its processes are starving? If you answer "yes," explain how it can. If you answer "no," explain how the system can deal with the starvation problem.

Answer: Starvation is a difficult topic to define as it may signify different things for different systems. For the cause of this question we will define starvation as the situation whereby a process must wait beyond a reasonable period of time-perhaps indefinitely-prior to receiving a requested resource. One way of noticing starvation would be to first identify a period of time-T-that is considered unreasonable. When a process desires a resource a timer is started. If the elapsed times go beyond T then the process is considered to be starved.

One approach for dealing with starvation would be to adopt a policy where resources are assigned only to the process that has been waiting the longest. For instance if process Pa has been waiting longer for resource X than process Pb the request from process Pb would be deferred until process Pa's request has been satisfied.

An additional strategy would be less strict than what was just mentioned. In this situation a resource might be granted to a process that has waited less than another process providing that the other process isn't starving. Nevertheless if another process is considered to be starving its request would be satisfied first.


Related Discussions:- Explain how the system can deal with the starvation problem

Define the conditions of deadlock prevention, What are the four necessary c...

What are the four necessary conditions of deadlock prevention?       Ans:  Four essential conditions for deadlock prevention: a. The meaning of removing the mutual exclusio

LINUX, what is exit status

what is exit status

User threads control dispatching, Consider a particular system that does no...

Consider a particular system that does not have an interrupting clock.  The only way a thread can lose the processor is to voluntarily surrender it.  Additionally, the operating sy

Distinguish between long and short term scheduler, Question 1: a) Disti...

Question 1: a) Distinguish between "Long-Term Scheduler" and "Short-Term Scheduler". b) Describe the benefits of "Threads". c) Name three types of CPU Scheduling. Que

Explain the scheduleworktodo function used in netware, Explain the Schedule...

Explain the ScheduleWorkToDo Function used in Netware ScheduleWorkToDo(MyThread Function, arg, workToDo) The ScheduleWorkToDo ( ) function is specific to NetWare 4.0. This c

Write a short note about the different states of a process, Write a short n...

Write a short note about the different STATES of a process. As a process implement it changes state. The state of a process is described in part by the current activity of that

Difference between message passing and shared memory, Problem: a) To en...

Problem: a) To ensure proper operation, the operating system and all the other programs must be protected from any malfunctioning program. Describe a mechanism which is impleme

Explain threads in details?, What are threads? A thread - sometimes c...

What are threads? A thread - sometimes called as an implementation context or a lightweight process - is a single sequential flow of control within a program. We use threads

What is meant by the phrase thread-safe, The term thread-safe in computer p...

The term thread-safe in computer programming describes that routine or portion of the program that may be called from multiple programming threads without uncalled for interactions

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