Heatmap patterns for index keys

This page shows examples of patterns that you might see in a Key Visualizer heatmap. These patterns can help you troubleshoot specific performance issues.

Evenly distributed usage

Heatmap showing evenly distributed reads and writes

If a heatmap shows a fine-grained mix of dark and bright colors, then write/delete operations for index keys are evenly distributed throughout the database. This heatmap likely represents an effective usage pattern for Cloud Firestore.