Operating system concepts-2

person icon Aditya Mishra

Operating system concepts-2

Master the basics of multithreading, Pthreads, synchronization, locks, semaphores, concurrency, deadlocks from scratch.

updated on icon Updated on Sep, 2023

language icon Language - English

person icon Aditya Mishra

architecture icon Operating Systems,Computer Science,IT & Software,Operating Systems & Servers


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Course Description

Ace multithreading, Pthreads, synchronization, locks, semaphores, concurrency, deadlocks questions in competitive exams, job interviews, and OS course exams.

Do you know: A single-threaded process can only execute on one core even if the machine has eight cores? A multithreaded process can exploit the true hardware parallelism! What are data races? What is process synchronization? What are atomic operations? How to implement correct multithreaded programs without data races? What are locks and semaphores? How do we use locks and semaphores to implement correct synchronization solutions? What are deadlocks? What are the necessary conditions for deadlocks? How do operating systems deal with deadlocks? How do operating systems implement threads? How do operating systems implement locks to ensure correct mutual exclusion and synchronization? Learn the explanations to these and many more intriguing questions in this course!

Who this course is for:

  • Anyone interested in learning about operating systems in modern computers could benefit from this course.
  • Computer science undergraduate students taking an operating systems course could benefit from the course.
  • You may (optionally) wish to print some of the material.


What will you learn in this course:

What you will learn?

  • Why use threads in programs?

  • What are the overheads of using processes?

  • What is the key idea behind threads?

  • Difference between single vs multithreaded processes

  • Benefits of using threads.

  • Pthread basics.

  • How to create a thread using Pthread?

  • How to pass parameters to a thread?

  • How to use Pthread_self, Pthread_equal?

  • How to terminate a thread?

  • How to use Pthread_join to wait for a thread to terminate?

  • How to return values from thread functions?

  • How to wait for threads?

  • How to detach a thread using Pthread_detach?

  • What are global variables in threads?

  • What is concurrency in programs?

  • What are race conditions and atomic operations?

  • What is synchronization?

  • What are the correctness properties for synchronization solutions?

  • How to enforce mutual exclusion?

  • What are locks?

  • How to use locks in Pthreads?

  • How to avoid deadlock with locks?

  • What are semaphores?

  • What are synchronization patterns--bounded concurrent access, signaling?

  • How to employ semaphores to avoid busy waiting?

  • How multithreading interacts with multicores?

  • What are the challenges of multicore programming?

  • How to designing multithreaded programs?

  • What are thread pools?

  • What is the readers-writers problem?

  • How to solve the readers-writers problem?

  • What is the dining philosophers problem?

  • How to solve the dining philosophers problem?

  • What are the 4 necessary conditions for deadlocks?

  • How to prevent deadlocks?

  • What is resource allocation graph?

  • How to handle deadlocks?

  • How to implement threads?

  • What are user threads and kernel threads?

  • How are threads implemented in Linux?

  • How are locks implemented?

  • What is the TestAndSet atomic instruction?

  • What are spin locks?

  • How do locks influence performance?


What are the prerequisites for this course?

  • No previous knowledge about operating systems needed. Everything you need to know about the topics will be covered.

Operating system concepts-2


Check out the detailed breakdown of what’s inside the course

5 Lectures
  • play icon Why use threads? 03:09 03:09
  • play icon Overheads of using processes 03:19 03:19
  • play icon Key idea behind threads 02:46 02:46
  • play icon Single vs multithreaded processes 07:07 07:07
  • play icon Benefits of threads 03:09 03:09
Pthreads--POSIX threads
11 Lectures
Concurrency in programs
10 Lectures
6 Lectures
4 Lectures
Multithreaded programs
8 Lectures
Classical synchronization problems--readers-writers problem
7 Lectures
Dining philosophers problem
4 Lectures
8 Lectures
Thread implementation
4 Lectures
Lock implementation
5 Lectures

Instructor Details

Aditya Mishra

Aditya Mishra

Hi, my name is Dr. Aditya Mishra--the founding director of Wisdom Academy. I hold a Master's degree from the Indian Institute of Technology Bombay and a Ph.D. from the University of Massachusetts, Amherst. I have a unique blend of experience working in both industry and academia.

As a scientist, I am fascinated by the ability of computer systems to make this world a better place. I have extensively researched smart grids and cyber-physical systems to achieve sustainability. Over the last decade, I have published dozens of research papers and have been cited in thousands of peer-reviewed research articles.

At the core, I am a teacher who wants to simplify Computer Science and Professional formation for aspirants like you. I have 7+ years of extensive experience teaching technical courses to undergraduate and graduate students in science and engineering disciplines. I have advised hundreds of students in their curriculum planning during this time. I have led many research and engineering projects focusing on students' technical and professional development.

And here I am! Wisdom Academy is here to help professionals, academics, and executives like you who believe it's the right time to turn their dreams into real life. This is no coincidence. I have thoroughly researched computer science, professional formation, and eastern philosophy for years before putting it all together into these courses. I invite you to join me on this journey.

Wisdom scholarships. If you are interested in taking one of our courses but cannot purchase it, you can apply for a scholarship to enroll. Learn more about the application process at my website.

May the force be with you!

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