Module 1 — Lesson 2: Why Do We Need It? (Making Programs Faster)
Learn why modern programs use concurrency; how concurrency actually makes things faster; where speed improvements come from (and where they don’t); and when concurrency won’t help
Nhut Nguyen
Module 1 — Lesson 1: What Is Concurrency?
What “concurrency” means.
Why it’s different from “doing things faster”.
How concurrency shows up in real life.
How computers use concurrency to handle many tasks at the same time.
Race Conditions and Basic Protection with a Mutex
Learn about C++ race conditions and how to prevent them when updating shared data. Use std::mutex and the RAII-style std::lock_guard for thread safety.
Understanding Resource Management Challenges
Explore common resource leaks, dangling pointers, and why manual cleanup fails. RAII solves these problems elegantly.
Your First Concurrent C++ Program - Parallel Sum with std::thread
Build a parallel sum function using std::thread and analyze performance. Discover the thread overhead and the optimal number of threads for massive speedup.
Basic Thread Management in C++
Master basic C++ thread management! Learn to launch threads with functions, functors, and lambdas, pass arguments, and choose between join() vs. detach().
Introduction to RAII: Principles And Benefits
Understanding Resource Acquisition Is Initialization in C++: tie resource lifetimes to objects for automatic cleanup, exception safety, and deterministic destruction.
Why C++ Developers Are Still Crushing It in 2026 (And Getting Paid Handsomely)
Discover why C++ developers earn top salaries in 2026. Learn how C++ competes with Python, Rust & JavaScript for high-paying jobs in finance, gaming & tech.
How to Run Two Threads at Once in C++
Start your first concurrent program using std::thread and the safer C++20 std::jthread. Understand join() for clean execution and avoid common pitfalls.