What do heatmap tiles in dashboards display?

Heatmap tiles in dashboards are designed to visually represent the density of metric values across various hosts or services. This means that each tile's color intensity or shade reflects the frequency or magnitude of a specific metric, allowing users to quickly assess performance or utilization levels within their environment.

Heatmaps are particularly useful for identifying patterns and anomalies at a glance, facilitating the analysis of large sets of data. By providing a color-coded representation, they help users to easily identify which hosts or services are experiencing higher loads, resource utilization, or other important metrics. This visual representation aids in rapid decision-making and prioritization of areas that may require further investigation or optimization.

The other options do not accurately describe the specific function of heatmap tiles. For example, while user actions can be tracked, heatmaps focus more on visual density rather than raw counts. Trending performance issues involve time series analysis, which is distinct from the snapshot visualizations provided by heatmaps. Similarly, system error rates are quantitative measures that are better suited to numerical displays or other chart types rather than a heatmap representation.