What's powering your setup? I've also been using Dashing to create my company's internal dashboards and decided to hook a Raspberry Pi up to the display to show the dashboards. Unfortunately it's turned out to be massively underpowered, especially because our dashboards are pretty data / chart heavy. Was just going back to the drawing board when I saw your post.

Your experience is interesting because Raspberry Pi will be my first thought for a setup like this. Can you elaborate a bit about your load problems? You said your dashboards are heavy: are you doing heavy data elaboration on the rPi (i.e. getting data from multiple sources, calculating stuff etc..) or it is just too heavy for handling the ruby/sinatra site with data being pushed from outside via http?

From my experience of first trying a lightweight media center PC, leaving the browser open for extended periods caused pretty severe memory issues with the computer in general, that combined with the fact that Dashing itself is a Sinatra based application with a bunch of ruby jobs running in the background can cause some serious slowdown.

Mac mini works fantastic.

I really like the graphs at the top in the left most pane and the ability to swipe between dashboards. Are those public widgets/functionality? Or, did you add those?

All the charts were created using the built in rickshaw library. Most of the widgets are in house at the moment but I'm working to open-source as much of it as possible.

Thanks!