Move heavy work off the main thread properly

Steps

1. 1Profile first: identify tasks blocking main thread >50ms consistently
2. 2Pool workers = hardwareConcurrency minus reserve; reuse, don't spawn per task
3. 3Transfer ArrayBuffers instead of structured-cloning large payloads
4. 4Design message protocol versioned — workers update independently of pages
5. 5Fallback to main-thread execution behind feature detection for old browsers
6. 6Guard against worker startup latency for tiny tasks — often net-negative

Common Pitfalls

• ▲PostMessage cloning multi-MB datasets negating compute savings
• ▲Workers importing entire app bundles via accidental transitive imports

Commands

$ npx skills add aniruddhaadak80/skills --skill rendering-strategy-web-workers-architecture

$ npx skills add aniruddhaadak80/skills --skill rendering-strategy-web-workers-architecture -g

Tags