Node.js vs Bun vs Deno 2026: I Processed 5M WebSockets. Only One Stayed Under 100MB RAM
📰 Medium · JavaScript
Learn how to compare Node.js, Bun, and Deno for real-time app scalability and memory usage, and why it matters for building efficient applications
Action Steps
- Run stress tests on Node.js, Bun, and Deno using identical hardware and zero frameworks
- Configure WebSocket connections to simulate real-time app traffic
- Test the memory usage of each runtime under heavy loads
- Compare the performance metrics of each runtime
- Apply the findings to optimize the choice of JavaScript runtime for a project
Who Needs to Know This
Backend engineers and developers benefit from understanding the performance differences between these JavaScript runtimes to make informed decisions for their projects. This knowledge helps teams optimize their application's scalability and memory usage.
Key Insight
💡 Deno outperformed Node.js and Bun in terms of memory usage, staying under 100MB RAM with 5M WebSockets
Share This
💡 Which JavaScript runtime stays under 100MB RAM with 5M WebSockets?
Key Takeaways
Learn how to compare Node.js, Bun, and Deno for real-time app scalability and memory usage, and why it matters for building efficient applications
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