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Operating Systems: Virtualization, Concurrency & Persistence

Explore operating systems through virtualization, concurrency, and persistence, covering CPU scheduling, process virtualization, locks, semaphores, and hands-on work with I/O devices and file systems.

Intermediate

477 Lessons

40h

Certificate of Completion

Explore operating systems through virtualization, concurrency, and persistence, covering CPU scheduling, process virtualization, locks, semaphores, and hands-on work with I/O devices and file systems.
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This course includes

116 Playgrounds
39 Quizzes
Course Overview
Course Content
Recommendations

Course Overview

When it comes to operating systems, there are three main concepts: virtualization, concurrency, and persistence. These concepts lay the foundation for understanding how an operating system works. In this extensive course, you'll cover each of those in its entirety. You'll start by covering the basics of CPU virtualization and memory such as: CPU scheduling, process virtualization, and API virtualization. You will then move on to concurrency concepts where you’ll focus heavily on locks, semaphores, and how ...Show More
When it comes to operating systems, there are three main concepts: virtualization, concurrency, and persistence. These concepts lay the foundation for understanding how an operating system works. In this extensive course, you'll cover each of those in its...Show More

Course Content

1.

Introduction

9 Lessons

Get familiar with OS fundamentals including CPU, memory virtualization, concurrency, and persistence.
A Dialogue on the Course
Introduction to Operating Systems
Virtualizing The CPU
Virtualizing Memory
Concurrency
Persistence
Design Goals
Some History
Summary

2.

Virtualization: Processes

11 Lessons

Unpack the core of process virtualization, state transitions, and management within operating systems.
A Dialogue on Virtualization
Introduction to Processes
The Abstraction: A Process
Process API
Process Creation: A Little More Detail
Processes States
Data Structures
Summary
Simulator
Exercise
Quiz on Processes

4.

Virtualization: Direct Execution

8 Lessons

Apply your skills to virtualize CPUs, manage concurrency, and measure OS performance efficiently.
Introduction to Direct Execution
Basic Technique: Limited Direct Execution
Problem #1: Restricted Operations
Problem #2: Switching Between Processes
Worried About Concurrency?
Summary
Exercise
Quiz on Direct Execution

9.

Virtualization: Address Space

8 Lessons

Explore the evolution of operating systems, focusing on memory management and virtualization.
A Dialogue on Memory Virtualization
Early Systems
Multiprogramming and Time Sharing
The Address Space
Goals
Summary
Exercise
Quiz on Address Space

10.

Virtualization: Memory API

10 Lessons

Master the steps to manage and allocate memory efficiently using UNIX/C memory APIs.
Introduction to Memory API
Types of Memory
The malloc() Call
The free() Call
Common Errors
Underlying OS Support
Other Calls
Summary
Exercise
Quiz on Memory API

11.

Virtualization: Address Translation

10 Lessons

Grasp the fundamentals of address translation, memory management, and hardware support.
Introduction to Address Translation
Assumptions
An Example
Dynamic (Hardware-based) Relocation
Hardware Support: A Summary
Operating System Issues
Summary
Simulator
Exercise
Quiz on Address Translation

13.

Virtualization: Free Space Management

9 Lessons

Investigate free space management, allocation strategies, memory allocators, and practical simulations.
Introduction to Free Space Management
Assumptions
Low-level Mechanisms
Basic Strategies
Other Approaches
Summary
Simulator
Exercise
Quiz on Free Space Management

14.

Virtualization: Introduction to Paging

10 Lessons

Build on paging as a memory management technique addressing fragmentation and exploring translation challenges.
Introduction to Paging
A Simple Example And Overview
Where Are Page Tables Stored?
What’s Actually In The Page Table?
Paging: Also Too Slow
A Memory Trace
Summary
Simulator
Exercise
Quiz on Introduction to Paging

21.

Concurrency: Thread API

10 Lessons

Master the steps to create and manage threads using POSIX Thread API and synchronization methods.
Introduction to Thread API
Thread Creation
Thread Completion
Locks
Condition Variables
Compiling and Running
Summary
Simulator
Exercise
Quiz on Thread API

23.

Concurrency: Locked Data Structures

8 Lessons

Get started with concurrent data structures, lock management, and performance optimization techniques.
Introduction to Locked Data Structures
Concurrent Counters
Concurrent Linked Lists
Concurrent Queues
Concurrent Hash Table
Summary
Exercise
Quiz on Locked Data Structures

26.

Concurrency: Concurrency Bugs

11 Lessons

Map out the steps for understanding and handling concurrency bugs, focusing on deadlocks and prevention.
Introduction to Concurrency Bugs
What Types of Bugs Exist?
Non-Deadlock Bugs
Deadlock Bugs
Prevention
Deadlock Avoidance via Scheduling
Detection And Recovery
Summary
Instructions for Exercise
Exercise
Quiz on Concurrency Bugs

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