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Table of Contents


Time Machine 2.0

Default Dashboard

Availabe since Sonar 3.0.



A default Time Machine dashboard comes out-of-the-box. It is built with Timeline and History table widgets:

Timeline Widget

Available since Sonar 2.11.



Note that you can mouse over the timeline to display the different values.

No history displayed at package level


Note that, by default, history is not kept on directories/packages measures and then timeline has not value to display.

To keep history on directories/packages, log in as an administrator, go to Configuration > Database Cleaner and set the Clean history data of directories/packages property to true.

Be aware that it would increase your database volumetry and therefore slow down performance.


Obviously, metrics to be displayed can be chosen in the widget settings:

History Table Widget

Available since Sonar 2.11.



Obviously, metrics to be displayed and number of versions to display can be chosen in the widget settings:

Delete A Quality Snaphshot

Whatever the reason (wrong quality profile, issue with analysis, etc.), you now have the ability to remove a snapshot to polish your history charts:

Previous version of the TimeMachine

Exploring the TimeMachine

Wherever in a project, it is always possible to access the Time Machine functionality through the left menu.

The Time machine enables to reply the past by looking at a series of past analysis. The Time machine page is divided into 4 sections.

The custom chart

This chart represent a timeline from the first ever analysis to the last ever analysis. On this timeline will appear all the metrics that are ticked below

To change the metrics appearing on the chart, tick the metrics you are interested in and press at the bottom of the page. The chart is then regenerated with the chosen metrics.

Every event, either generated or manually entered appear on the chart as vertical doted lines.

It possible to change the default metric appearing on the chart by clicking on Set as default.

The chosen analysis

When launching the Time Machine, Sonar displays the first snapshot ever and the last 5 events in the system.

It is possible to add snapshots to the view : snapshots can be selected either by date

or by events (only version events will be listed)

It is possible to hide a snapshot from the view by using the hide link next to the snapshot to be removed


The chosen columns do not currently have any influence on the custom chart

The metric table

On the left of this table will appear the list of all possible metrics (grouped by families) stored in the system, including the manual metrics. Each column represents a snapshot and will display the measure for the metric. At the right of the table appears a sparkline showing the evolution of the chosen snapshots.

The complexity chart

This chart compares the repartition of the classes complexity between all the chosen snapshots.

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