You need to look at serialization overhead for exchanging data. For example, I d...

skybrian on Nov 26, 2017 | parent | context | favorite | on: Rust: Enable WebAssembly backend by default

You need to look at serialization overhead for exchanging data. For example, I don't think web assembly has direct access to JavaScript strings? What about JSON?

Seems like you're either converting a lot of strings (which wastes memory) or calling lots of JavaScript string methods from web assembly, which is not likely to be fast in an inner loop.

cormacrelf on Nov 27, 2017 [–]

To be clear, I haven't done anything serious in WASM that would hit any limits here.