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All LessonsFree Lessons (4)

The Basics

Program vs Process vs Thread

Concurrency vs Parallelism

Cooperative vs Preemptive Multitasking

Throughput vs Latency

Synchronous vs Asynchronous

I/O Bound vs CPU Bound

Critical Section & Race Conditions

Deadlock, Liveness & Reentrant Locks

Mutex vs Semaphore

Mutex vs Monitor

Mesa vs Hoare Monitors

Semaphore vs Monitor

Global Interpreter Lock

Threading Module

Creating Threads Subclassing Thread Daemon Thread Lock RLock Condition Variables ... continued ... continued ... continued Semaphores Events Timer Barrier With Quiz 1 Quiz 2

Multiprocessing

Introduction Process Fork Spawn Forkserver Queues & Pipes Sharing State Locks & Reentrant Lock Barrier, Semaphore, Condition Variable Pool ... continued Manager ... continued ... continued SyncManager Working with Managers Namespace Quiz 1 Quiz 2 Quiz 3

Concurrent Package

Pool Executors Futures Miscellaneous Functions

Async.io

Introduction Iterables Yield Generator Send Sending and Receiving ... continued Coroutine ... continued Event Loop ... continued Yield From ... continued Generator Based Coroutines ... continued Native Coroutines ... continued Mixing Native & Generator Based Coroutines Chaining Coroutines Future & Tasks Web Crawler Example Async Sleep Problem Chat Server Example ... continued ... continued Quiz

Global Interpreter Lock

Introduction Single Thread Multiple Threads Multiple Processors Asynchronous Asynchronous with Executors

Interview Practise Problems

Blocking Queue | Bounded Buffer | Consumer Producer Non-Blocking Queue Rate Limiting Using Token Bucket Filter ... continued Thread Safe Deferred Callback Implementing Semaphore Read Write Lock Unisex Bathroom Problem Implementing a Barrier Uber Ride Problem Dining Philosophers Barber Shop Asynchronous to Synchronous Problem Multithreaded Merge Sort

The End

Practice Mock Interview

Python Concurrency for Senior Engineering Interviews/

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Semaphore vs Monitor

Semaphore vs Monitor

This lesson discusses the differences between a monitor and a semaphore.

We'll cover the following...

Semaphore vs Monitor

Monitor, mutex, and semaphores can be confusing concepts initially. A monitor is made up of a mutex and a condition variable. One can think of a mutex as a subset of a monitor. Differences between a monitor and a semaphore are discussed below.

The Difference

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