[REACT] Investigate load performance of very large datasets

[jsakalos]

The user reported a performance issue in the case of loading of very big dataset. Please investigate the issue and improve preformance.

Forum post

I'm working with a data set that is about 5,000+ parent nodes and a handful of rollup children per parent node, equating to around 20,000 total entries, although the rollups are only displayed on the timeline and not in the grid.

After passing this object to the Gantt component, there is up to a minute of loading time before the component renders. Also, sometimes the lazy load scrolling will freeze up the component for a few seconds if you scroll quickly. I'm wondering what opportunities are available to optimize the load times and performance.

One thing we are looking into currently is to load the data into the component in chunks, or loading the grid data first and then timeline data afterwards. Any information would be highly appreciated!

[yojake42]

Here is an example application that exemplifies long loads bigdata demo.zip

[jsakalos]

The screencast of the results with the latest user's showcase: