# V8 Jit

> V8 JIT optimization patterns for writing high-performance JavaScript in Next.js server internals.

V8 JIT optimization patterns for writing high-performance JavaScript in Next.js server internals. Use when writing or reviewing hot-path code in app-render, stream-utils, routing, caching, or any per-request code path. Covers hidden classes / shapes, monomorphic call sites, inline caches, megamorphic deopt, closure allocation, array packing, and profiling with --trace-opt / --trace-deopt.

- Page: https://ss33.ai/skills/vercel/v8-jit-77202488368
- Publisher: vercel
- Category: [Software Development](https://ss33.ai/skills/category/software-development-t44z8z) › [Languages & frameworks](https://ss33.ai/skills/category/software-development-t44z8z/languages-and-frameworks-rgvrso)
- Source: https://github.com/vercel/next.js/blob/ef0bc5f39a8e7bc9169830bd8b4391c69f5a44b5/.agents/skills/v8-jit/SKILL.md

## Skill

This skill's licence does not allow redistribution, so the store does not serve its text. Get it from the author: https://github.com/vercel/next.js/blob/ef0bc5f39a8e7bc9169830bd8b4391c69f5a44b5/.agents/skills/v8-jit/SKILL.md