Build Analysis window reference

Use the Build Analysis window to inspect the build history of your project. To open the window go to Window > Analysis > Build Analysis.

Build Analysis window with some build data open in the Overview tab. — Build Analysis window with some build data open in the **Overview** tab.

The window has the following tabs to explore the data related to a build:

Overview: An overall analysis of the build, including details of the build steps, and recommendations to improve the build process.
Assets: A list of assets included in the build.

Both tabs display the outcome of the build as either Success or Failure, along with the date and timing of the build.

The sidebar contains a list of any builds that are in the BuildHistory folder of your project. By default, the BuildHistory folder is nested in the Library folder of your project. You can configure its location in the Project Settings window. Right-click on the build to display it in a file browser, copy its path, or delete the build directory from the BuildHistory folder.

Overview tab

The top of the tab contains a summary of the following:

Property	Description
Total Size	Displays the total size of the build.
Build Duration	Displays how long the build took to create.
Assets	Displays the total number of assets in the build. For a full list of the assets in the build, refer to the Assets tab.

Build Details

Displays a summary of the details of the build.

Property	Description
Errors	Displays the number of errors Unity logged during the build. The Messages section displays a detailed list of any errors.
Warnings	Displays the number of warnings Unity logged during the build. The Messages section displays a detailed list of any warnings.
Cache Reused	Displays the percentage of the build’s content that Unity reused from a previous build.
Build Options	Displays the build options enabled for this build.
Content Options	Displays the content build options for this build. Only applicable for content directory builds.
Output Path	Displays the folder that Unity wrote the build to.

Build Steps

Displays the time spent on each step of the build process.

Build Logs

Displays a list of info, warning, and error messages related to the build. Use the View dropdown to filter the messages by build step. You can also select Collapse to collapse any duplicated messages.

Assets tab

The top of the tab contains a summary of the following:

Property	Description
Scenes	Displays the total number of scenes in the build.
Assets	Displays the total number of assets in the build.
Root Assets	Displays the total number of root assets in the build. Only applicable for content directory builds.

Root Asset Table

Displays a list of the root assets in the build. Only applicable for content directory builds.

Property	Description
Name	Displays the root asset’s file name.
Direct Size	Displays the build output size for this root and what loads immediately with it. Excludes on-demand loadable content.
Direct Assets	Displays the number of source assets that load immediately with this root. Excludes on-demand loadable content.
Total Size	Displays the build output size for everything reachable from this root asset, including on-demand loadable content.
Total Assets	Displays the number of source assets reachable from this root asset, including on-demand loadable content.

You can right-click on any of the assets in the list to select the asset in your project, or copy its path.

Select the Toggle Inspector icon at the top right of the window to display further information about a root asset when you select it in the list. The inspector additionally displays a References list, which contains a list of all assets contained in the root asset.

Asset Table

Displays a list of the assets included in the build.

Property	Description
Name	Displays the asset’s file name.
File Extension	Displays the file extension of the asset.
Output Size	Displays the size of the asset. The table is ordered by this value by default.