Apparently dashing is not being maintained anymore. Check its homepage.
http://dashing.io
In combination with graphite I can make some cool statistics and graphs
"Smashing, the spiritual successor to Dashing, is a Sinatra based framework that lets you build excellent dashboards. It looks especially great on TVs."
Grafana is a push model, while Dashing is a pull model.
Grafana is pretty tough on RAM and svg usage. Try to use pngs and the UI is harder to adopt.