Parallelism experiments in JavaScript

on YouTube ↗33m

" summary

Claim: JavaScript gains low-level primitives for parallelism using shared array buffer and shared Int32 views, not just heavier web workers. Benchmarks show postMessage runs ~54,000 messages/sec while the shared-memory example hits 6 million messages per second. Live builds on Nightly run a parallel Mandelbrot and a near-native Unity WebGL benchmark port that scales across 4–8 cores and reuses pthreads code. Implementation works and is being pushed toward standardization and cross‑browser adoption.

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" chapters (13)

1. 0:00Introduction
2. 0:37Concurrency vs Parallelism
3. 2:08Evolution of the web
4. 3:39JavaScript performance
5. 4:25CPU utilization
6. 5:33Why does this matter
7. 7:00Parallelism in JavaScript
8. 8:54Design considerations
9. 11:50Shared Memory
10. 14:52Shared array buffer
11. 20:55Live demos
12. 24:50Unity WebGL benchmark
13. 27:09Unity 3D engine

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