[eweise]

Can the data in the charts be updated in realtime? I'm looking for graphs to display operations type data like cpu usage, etc over time.

[Rodeva]

Each one of the chart types has a prototype method .update() which will re-draw the chart with your updated values, so real-time updates are possible.

[1] http://www.chartjs.org/docs/

[kamicut]

Check out Epoch: http://fastly.github.io/epoch/