The study compares the following types of applications:

40-object applications. Each application contains 40 application objects that include 32 mappings and 8 physical data objects.
100-object applications. Each application contains 100 application objects that include 50 mappings and 50 physical data objects.

The applications are deployed in sets of 100, 500, or 1,000 applications to the Data Integration Service.

The database used by the Model Repository Service is deployed on the same machine as the domain node.

The following chart shows the time taken to start up the Data Integration Service based on the number of applications deployed to the Data Integration Service and the number of objects in each application:

The total number of objects in an application has little to no effect on application load/startup time. To reduce the number of deployed applications on a Data Integration Service, group related entities to place 40 - 60 application objects that include mappings and workflows in one application.