Cloudflare Addresses CPU Performance Benchmarks for Workers Platform
By
makepanic
Fresh out the oven, still warm. Top of the tray.
Summary
Cloudflare investigated and responded to independent benchmarks by Theo Browne that showed Cloudflare Workers performing 3.5x slower than Vercel's Node.js implementation on CPU-intensive tasks. The company identified and fixed issues in their infrastructure, V8 garbage collection, and OpenNext optimizations, resulting in performance improvements for all customers. The article details Cloudflare's technical investigation process and the specific optimizations implemented to address the performance gap.
Key quotes
· 4 pulledThe initial results showed Cloudflare Workers performing worse than Node.js on Vercel at a variety of CPU-intensive tasks, by a factor of as much as 3.5x.
We were surprised by the results. The benchmarks were designed to compare JavaScript execution speed in a CPU-intensive workload that never waits on external services.
Cloudflare investigated CPU performance benchmark results for Workers, uncovering and fixing issues in infrastructure, V8 garbage collection, and OpenNext optimizations.
These improvements have made Cloudflare Workers faster for all customers.
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