~/talk

Native Speed on the Web: JavaScript and asm.js

Talkat Strange Loop 2013 · 2013-09-18..09-20· [javascript, web-performance, web-platform]

speaker

name:Alon Zakai

website:https://kripken.github.io/blog/about/

resources

video:https://youtu.be/-5nP44VRN1s

slides:none on file

summary

Argues that compiled-to-JavaScript pipelines actually hit near-native speeds: C/C++ compiled with Emscripten into asm.js runs heavy apps like Unreal Epic Citadel and Banana Bread at around 58–60 fps, startup shrinking from ~20s to ~10s. Shows benchmarks (Box2D, Bullet) where asm.js often runs about two times slower or closer to native, explains the role of typed arrays, Math.fround for float32, SIMD proposal and web-worker/threading limits, and demos that work in current browsers.

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