[racket] Using the profiler effectively?

>
>  http://stackoverflow.com/questions/54971/profiling-visualization-tools
>
> which has a number of pointers that look useful.  It also looks like
> graphviz is the most popular recommendation, so perhaps that's the
> best way to go -- slapping a GUI or an HTML rendering around it.


As an example of the kind of documentation I'd like to see, one of the
Go folks wrote up how to use their profiler tools:

    http://blog.golang.org/2011/06/profiling-go-programs.html

and I would love it if we had some similar documentation.