🚀 Virtual Threads vs Platform Threads — Spring Boot JDK 21 Performance Test

Pubblicato il: 02 marzo 2026
sul canale di: easy coding ai

In this video, I demonstrate the real performance difference between traditional JVM platform threads and the new virtual threads introduced in JDK 21.

I built a complete Spring Boot application and executed high-load performance testing using executor service, Completable Future, and Tomcat virtual threads.

code repo: https://github.com/easyCodeProggamer/...

🧪 Test Setup

• Spring Boot 3
• JDK 21 Virtual Threads
• Platform Threads (ExecutorService)
• REST API with blocking operations
• Load Testing using JMeter

📊 Results demonstrated

Virtual Threads show:

• Massive scalability
• Lower memory footprint
• Better throughput

🧠 Topics Covered

• What are Platform Threads
• How JVM creates OS Threads
• What are Virtual Threads
• Carrier Threads explained
• ExecutorService vs VirtualThreadPerTaskExecutor
• CompletableFuture vs Virtual Threads
• Tomcat with Virtual Threads

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