The number of recently rendered task boxes that will be kept in the DOM when progressiveTaskRenderingCacheSweeping is enabled.
DayPilot.Gantt.progressiveTaskRenderingCacheSize (integer)
200
The tasks inside the Gantt viewport plus progressiveTaskRenderingMargin are not included in this limit (they are always kept in the DOM).
The oldest task boxes are removed first.
gantt.progressiveTaskRenderingCacheSize = 500;