Java Threads vs Virtual Threads | Why This Changes Everything

In this video, we compare Java threads vs virtual threads, breaking down how they work, why virtual threads are more scalable.

Java threads are the foundation of concurrency in the JVM — but the traditional model doesn’t scale well for I/O-heavy applications.

That’s where **virtual threads** change the game.

✅ How platform threads map to OS threads

✅ Why virtual threads scale to millions of concurrent tasks

✅ How Java's new scheduling model works under the hood

✅ Use cases, trade-offs, and real-world best practices

✅ When to use platform vs virtual threads (and avoid costly mistakes)

Whether you’re building web servers, backend APIs, or multithreaded services — understanding **Java threads vs virtual threads** will make your code faster, simpler, and easier to scale.

#JavaThreads #VirtualThreads #JavaConcurrency #ProjectLoom #SystemDesign #BackendEngineering #Multithreading #JVMInternals #ScalableJava

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⏳ Timestamps

0:00 – Intro: What Are Java Threads?

0:45 – Platform Threads: How They Work and Why They Don’t Scale

2:00 – Virtual Threads Explained (Project Loom)

3:15 – How Virtual Threads Use Mounting and Unmounting

4:20 – JVM Scheduling vs OS Scheduling

5:00 – Real-World Use Cases: HTTP Servers, I/O Workloads

6:15 – Trade-Offs and Gotchas of Virtual Threads

7:30 – Outro: Keep Your Threads Light ☕

#NGINX #SystemDesign #EventDriven #NodeJS #epoll #WebServers

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