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AI Engineering
Hacker News·25d ago·5 min read
Bun vs. Deno vs. Node.js 2026: Real Benchmarks Mislead
TL;DR
Real benchmarks comparing Bun, Deno, and Node.js reveal misleading performance claims. A comprehensive analysis was conducted using various workloads to assess each runtime's capabilities.
✦ Why It Matters
Choose the right JavaScript runtime based on specific workload requirements to optimize application performance.
Key Takeaways
- Evaluate runtime performance based on specific application needs.
- Consider Bun for lightweight tasks but Node.js for heavy concurrency.
- Stay updated on runtime developments as benchmarks evolve.
- Use standardized tests to compare performance metrics effectively.
Full Summary
As JavaScript runtimes evolve, developers often rely on benchmarks to choose the best tool for their projects. This analysis compared Bun, Deno, and Node.js across multiple workloads, including HTTP requests and file system operations.
Using standardized tests, the performance of each runtime was measured in terms of speed and resource consumption. Results showed that Bun outperformed Deno in certain tasks but fell short against Node.js in others, particularly in handling concurrent requests.
These findings suggest that while Bun is a viable option for specific use cases, Node.js continues to dominate in overall performance. Engineers should consider these results when selecting a runtime for their applications, as the choice can significantly impact performance and scalability.