Cubism.js is a D3 plugin for visualizing time series. Use Cubism to construct better realtime dashboards, pulling data from Graphite, Cube and other sources. Cubism is available under the Apache License on GitHub.
Cubism fetches time series data incrementally: after the initial display, Cubism reduces server load by polling only the most recent values. Cubism renders incrementally, too, using Canvas to shift charts one pixel to the left. This approach lets Cubism scale easily to hundreds of metrics updating every ten seconds! Despite asynchronous fetching, rendering is synchronized so that charts update simultaneously, further improving performance and readability.
Cubism also scales in terms of perception: small multiples aligned by time facilitate rapid comparison. Cubism’s horizon charts make better use of vertical space than standard area charts, allowing you to see many more metrics at-a-glance and increasing the likelihood of discovery. If you compress a 120-pixel tall area chart to 30 pixels, you lose 75% of the resolution and it becomes harder to see small changes: