Comparing Serverless Performance for CPU Bound Tasks

This post benchmarks Cloudflare Workers against AWS Lambda and Lambda@Edge for CPU-bound tasks, specifically using PBKDF2 for password hashing. It demonstrates that Workers are significantly faster (up to 7x) and more cost-effective than Lambda, even when Lambda is configured with maximum memory. The tests also show that native binaries in Lambda do not offer a performance advantage over JavaScript for these types of workloads. The post highlights the global distribution of Workers as a key differentiator.