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Syntax - Tasty Web Development Treats

791: LLRT The Serverless Runtime w/ Richard Davison

Jul 5, 2024 · 56 min
0:00-56:39

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Scott and Wes chat with Richard Davison from AWS about LLRT, a new runtime tailored specifically for Lambda. They dive into the benefits of using LLRT, challenges with JavaScript in serverless, and why Rust was chosen for its development.

Show Notes
  • 00:00 Welcome to Syntax!
  • 01:07 Who is Richard Davison?
  • 05:11 What is LLRT and what’s the motivation for building it?
  • 08:25 AWS Lambda example.
  • 11:20 What makes LLRT specifically tailored to Lambda?
  • 14:55 Brought to you by Sentry.io.
  • 15:22 Node.js in Lambda.
  • 16:00 What are some challenges that people have with JavaScript in serverless?
  • 17:20 Lambda memory configuration.
  • 19:23 Managing cost of compute.
  • 21:29 Simpler and faster than Node, Bun, Dino, but not a replacement.
  • 22:31 The benchmarks.
  • 27:00 Quick.js, the main reason for the performance gains.
  • 28:03 The Quick.js engine.
  • 30:35 What was the reason behind creating Quick.js?
  • 33:46 What made you pick Rust for LLRT?
  • 36:34 Abstractions and the value of speed.
  • 39:08 The JIT Compiler.
  • 42:38 Compile cache.
  • 43:27 De-optimizations.
  • 44:59 Node.js Compat, what to use and avoid with LLRT.
  • 47:52 Will you target with WinterCG spec?
  • 50:22 Streams API.
  • 52:06 What about WebSockets?
  • 53:10 Is this going to be promoted from a labs project?
  • 54:49 Sick Picks + Shameless Plugs.
Sick Picks Shameless Plugs
  • Richard: Javascript
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