Questions and Answers
What happens when the second process tries to read the data?
The data is in an inconsistent state.
Which type of transport is likely to be affected by this issue?
Facilitated Diffusion
What chapter will explore this issue in detail?
Chapter 6
What is the result of the data being in an inconsistent state?
Signup and view all the answers
What is the primary cause of this issue?
Signup and view all the answers
What is a characteristic of a Multilevel Feedback Queue?
Signup and view all the answers
What is the primary purpose of a Multilevel Feedback Queue?
Signup and view all the answers
In a Multilevel Feedback Queue, which of the following is NOT a possible scenario?
Signup and view all the answers
What is an advantage of using a Multilevel Feedback Queue?
Signup and view all the answers
Why is a Multilevel Feedback Queue used in operating systems?
Signup and view all the answers
What is the total number of shares allocated among all processes in the system?
Signup and view all the answers
What percentage of the total processor time will an application receive if it has N shares?
Signup and view all the answers
What is the purpose of the POSIX.1b standard?
Signup and view all the answers
What is the relationship between the number of shares an application has and the processor time it receives?
Signup and view all the answers
What is the minimum number of shares an application can have?
Signup and view all the answers
Which of the following is a characteristic of Proportional Share Scheduling?
Signup and view all the answers
Study Notes
Multilevel Feedback Queue
- A process can move between the various queues.
- If a process requires 30 shares to enter the system and the current available shares are 20 + 15 + 50 = 85, the admission controller will reject the process.
Proportional Share Scheduling
- T shares are allocated among all processes in the system.
- An application receives N shares where N < T.
- Each application will receive N / T of the total processor time.
POSIX Real-Time Scheduling
- The POSIX.1b standard provides an API for managing real-time threads.
- The API defines two scheduling classes for real-time threads.
- The standard enables the management of real-time threads.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Learn about the issues that arise when multiple processes try to access and update data simultaneously, leading to inconsistent states. Explore the concepts and solutions in database management systems.
