[vvanders]

> Look at how game developers have demanded shared memory in JavaScript

Have a source for that? I find it pretty dubious.

If you're looking to multicore for performance with javascript then you're using the wrong language. Correct memory layout and access patterns will give you a real-world 50-100x win.

[pcwalton]

Source: I work directly with people who interact with game developers who are asking for it.

Look for asm.js threads on HN: virtually every time it shows up someone brings up shared memory multithreading.

SharedArrayBuffer is the direct result of this popular demand: https://blog.mozilla.org/javascript/2015/02/26/the-path-to-p...