Helidon Nima - Loom based microservices framework
summary
Helidon Nima is a Loom-based microservices server that runs on Java 19 preview and implements synchronous routing on virtual threads while keeping a reactive option; benchmarks show performance comparable to Netty (about 4 million req/s on HTTP/1.1 pipelining, ~800k HTTP/2 plain, ~1M plain-text peak) and the server can spin up to a million virtual threads per second. It ships HTTP/1.1, HTTP/2, gRPC and WebSocket prototypes, targets tiny images (smallest service ~1.5 MB), and requires offloading long CPU-bound work to platform threads.
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chapters (24)
- 0:00Intro
- 0:48Agenda
- 2:04What is Helidon?
- 4:02Helidon Flavors
- 5:39Helidon packaging
- 8:08What problem do we solve?
- 9:11Why is optimization so important?
- 9:42Expensive Concurrency
- 12:26Current solution-reactive programming
- 13:48Reactive operators
- 19:16Better Solution? - Virtual Threads!
- 21:29Project Loom
- 23:24Reactive vs Imperative
- 25:50Helidon 4.0.0-ALPHA2
- 26:57Nima server features
- 27:55Nima thread model
- 29:42Nima features
- 30:29Performance disclaimer
- 31:56Helidon Nima Performance Comparison
- 34:29How is that possible?
- 35:02Helidon MP 4
- 36:33What we do not solve
- 38:24Offloading obstructive workload
- 40:15Nima development
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