Boost Module for Sankey Chart
The boost module would be beneficial for large dataset when using the sankey chart. We are experiencing a severe degradation in performance with large datasets on this chart type
Thanks for posting!
The first step would be to profile the non-boosted code to get the best performance out of it in each case.
Can you show us a live demo of your problematic chart?
can you please tell me to create one node on up side and linked symbol is going up like this?
Duncan Abela commented
Definite improvement and speed up..Initial tests on it look very promising.
Related to this idea, I found a major performance issue with data labels. The default settings for sankey made Highcharts produce empty data labels for the links, resulting in wasted performance on the anti-collision logic.
This has been fixed in https://github.com/highcharts/highcharts/commit/647d870ef152ad694bbbe89a7b2d0603a150e76c and will be part of the next maintenance release.
Until then, the workaround is to set dataLabels.formatter to a no-op function (return undefined). See it live at http://jsfiddle.net/a6Lgyn2q/ .