Primavera Cache Service dramatically improves the performance of P6 Professional in a cloud environment. The service synchronizes data in a local cache database with a Cloud Connect database while you work in P6 Professional and even after the application is closed. Primavera Cache Service greatly enhances user experience by improving the speed of the most frequent operations: adding, deleting, and updating activities.
While you work in P6 Professional you are working in the local cache database which provides increased performance over connecting to the Cloud Connect database directly. In the background, the Primavera Cache Service continues to synchronize global data and data for the projects you are working in between the local cache database and the Cloud Connect database.