Ran the same test in node 0.10.33, and despite also using V8, does not have this behaviour.
https://gist.github.com/dazld/2a5dc58f5c9ce61bccae
Was about to start minifying all the server code too.. ;)
https://gist.github.com/dazld/2a5dc58f5c9ce61bccae
Was about to start minifying all the server code too.. ;)
That however does not mean you need have to minify your server code.
Please don't base such decisions on some random microbenchmarks that have 0 connection to the code that you are really running in production.
Instead base these decisions on profiling of your actual application.
As I already said below: it is unlikely you get 70% improvement by removing all the comments in your code. For that you need an app that does nothing but a very hot tight loop calling the same small function that does almost nothing too.
Correct to point this out, especially considering the predilection of devs to micro-optimise based on the most spurious of hypotheses. Putting a single IO operation in that loop will most likely completely change the picture, anyway - although have not run the test to check.
I just used twitter to have many people testing in differents browser (and so JS engine) and so comparing behaviours :)