Seokho’s blog

The Beginning… At the beginning of March, 2025.

Recently, I filed an issue to crbug.com which is discovered in our frontend product.

Recently, I expanded my contribution from JS surface layer to lower layer compiler pipeline, which takes a bytecode and produce machine instructions or produce a new graph for the further compiler.

I got v8 committer status in this morning.

While following Chrome platform status, I found an interesting feature that will be shipped in Chrome M136 and V8 v13.6.

Debugging Note This post simply contains a debugging note for V8 development for myself.

Introduction In this post, I share the story of implementing Float16Array as an external contributor to V8, focusing on the final JIT optimizations in TurboFan and Turboshaft.

Introduction I optimized the function Math.hypot to about 200% in v8 which is the javascript engine of Chrome, NodeJS runtime.

I merged the Float16 feature to v8 today.

Motivation I wanted to organize a workflow centered around coverage at my company and sought to understand precisely what coverage is.