Queue Diagnostics
Queue Diagnostics shows where and when work piles up in your model, so waiting problems are easy to spot.

Reading the heatmap
Section titled “Reading the heatmap”The tab lists the queues with the biggest waiting problems, and shows a heatmap of the week: each cell is a time of day on a day of the week, colored by how congested that queue was. Bright bands reveal when work backs up, so you can see whether a queue is always busy or only at certain hours.
Queue Diagnostics needs bucket collection turned on, in Simulation Options or on the individual queue. Without it, the tab has nothing to show.

