> ## Documentation Index
> Fetch the complete documentation index at: https://docs.datachecks.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Comparisons Dashboard

> Monitor comparison job performance, results distribution, and dataset diff metrics over time.

The Comparisons Dashboard gives you an at-a-glance view of how your comparison runs are performing. Navigate to **Dashboards → Comparisons** in the left sidebar.

Use the **date range picker** in the top-right to set the time window (default: last 30 days). All metrics and charts update to reflect the selected range.

## Summary cards

Two metric cards sit at the top of the dashboard, each showing the current value and a trend indicator compared to the previous period.

**Job Status**

| Metric              | Description                                            |
| ------------------- | ------------------------------------------------------ |
| **Successful Jobs** | Count of comparison runs that completed without error. |
| **Failed Jobs**     | Count of comparison runs that errored out.             |
| **Avg Run Time**    | Average duration of a comparison run, in seconds.      |
| **Total Jobs**      | Total comparison executions in the selected period.    |

**Performance Statistics**

| Metric                    | Description                                                   |
| ------------------------- | ------------------------------------------------------------- |
| **Avg Diff PK (%)**       | Average percentage of differing primary keys across all runs. |
| **Avg Diff Rows (%)**     | Average percentage of differing rows across all runs.         |
| **Total Rows Downloaded** | Total number of rows read during comparisons.                 |

## Charts

**Comparison Types** — Pie chart breaking down runs by type: Deep, Shallow, and Schema. The total count is shown in the center.

**Comparison Results** — Horizontal bar chart showing how runs resolved:

| Result             | Description                                    |
| ------------------ | ---------------------------------------------- |
| **Identical**      | Source and target matched completely.          |
| **Schema Diff**    | Structural differences detected.               |
| **Row Count Diff** | Row counts differed between source and target. |
| **Value Diff**     | Column value differences found.                |

## Filters

Use the filter panel to narrow down which runs are included in the metrics and charts:

| Filter                | Description                                    |
| --------------------- | ---------------------------------------------- |
| **Results**           | Identical, Different                           |
| **Origin**            | Manual (Web UI), Agent                         |
| **Comparison Type**   | Deep, Shallow, Schema                          |
| **Source Datasource** | Filter to a specific source connection         |
| **Target Datasource** | Filter to a specific target connection         |
| **Source Dataset**    | One or more source datasets                    |
| **Target Dataset**    | One or more target datasets                    |
| **Diff PKs range**    | Min/max slider for primary key diff percentage |
| **Diff Rows range**   | Min/max slider for row diff percentage         |