swannodette_

If that's really true for Ember.js that's great! I'm curious as to why it performs so badly? http://www.petehunt.net/react/tastejs/benchmark.html

The project is async-tut1 not async-tutl. Look at your project.clj.

ClojureScript has had performance escape hatches for some time. It's pretty much always possible to get the performance of hand written JS, important otherwise our data structures would be lame. We'll likely document these techniques in the future.

No the post advocates generators plus a competent channel abstraction. It's going to be hard to compare generator libraries to core.async, far as I can tell none employ the comprehensive set of optimizations that we do for time and memory. Perhaps when someone ports our ideas to JavaScript a real comparison can be made.