Introducing the B3 JIT Compiler

In software security, root cause analysis (RCA) is the process used to “remove the mystery” from irregular software execution and measure the security impact...

Built-in Postgres client with Bun.sql, built-in S3 object support with Bun.s3, a new text-based lockfile: bun.lock, Express is 3x faster, and a major update on Node.js compatibility.

Fixes 54 bugs (addressing 248 👍). JavaScript gets faster on Windows. Raspberry Pi 4 support returns. `_auth` support in `.npmrc`. `bun install` preserves package.json indentation. `aws-cdk-lib` support. Memory leak fixes in `new Response(request)` and `fs.readdir`. Several reliability improvements. Statically linked UCRT on Windows.

This blog post is about my work to improve CRuby performance by introducing new virtual machine instructions and a JIT. It is loosely based on my presentation at RubyKaigi 2017 in Hiroshima, Japan.

This is the talk I gave at App Builders Switzerland on April 25th, 2016.

This is the Part 2 of a series. Feel free to read the prequel for more context: Building the fastest Lua interpreter automatically Building a good VM for a dynamic language takes a ton of engineerin

How I implement SSA form. GitHub Gist: instantly share code, notes, and snippets.