If anyone is interested, I’ve re-run micro benchmarks for 14 versions of ClojureScript using Benchmark.js and the results are here: https://ducky427.github.io/clojurescript-benchmarks

These were run on a linux box on JSC/SpiderMonkey/v8 engines and they took 8hrs in total. All documentation for running them on your machine are here: https://github.com/ducky427/clojurescript-benchmarks/blob/master/README.md

There is ability in the project to run quick benchmarks as well which take significantly less time (~ 2-3 minutes per cljs version)

Very cool @rohit

@kamn: thanks! I need to so spend some time studying the results. there are some funky results. For example, the results for symbol benchmark http://blog.ducky.io/clojurescript-benchmarks/full/20160614.html#bench-2 . The strangeness disappears when I only run that benchmark. So ¯\(ツ)/¯