Serverless Java Web Applications on AWS Lambda with Micronaut Quarkus & Spring Boot

on YouTube ↗49m

" summary

Compares running a REST API (API Gateway → Lambda → DynamoDB) with Micronaut, Quarkus and Spring Boot and measures cold starts: about 100,000 warm starts and 100 cold starts during stress tests, Spring ~7s P90 cold starts, Quarkus ~6s, plain JVM ~3s. Shows two optimizations that work: SnapStart priming (simple one-liner DynamoDB priming reduces P90 to ~1–2s) and GraalVM native image (custom runtime yields sub‑1s P90 but requires build/config work and reflection hints). Results are measured and reproducible.

AI-written summary · about

" chapters (16)

1. 0:00Introduction to talk
2. 1:17Why serverless Java?
3. 4:28Pure Java vs frameworks
4. 6:17Spring Boot on Lambda
5. 10:52Quarkus Micronaut setup
6. 14:28Cold starts explained
7. 16:55Performance without optimizations
8. 21:34Optimizing with SnapStart
9. 29:40Priming techniques
10. 33:32SnapStart results
11. 36:01Advanced optimizations
12. 38:30GraalVM Native Image
13. 43:12GraalVM results
14. 45:24Alternatives and resources
15. 47:31Future of GraalVM
16. 48:54Q&A

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