Understand report data caching
When working with large amounts of data, system performance can be an issue. In some environments, your Portal server may not be able to view the information in a timely manner.
Performance issues are addressed when working with large amounts of data by employing different solutions - one is caching reports. Cached data is used to improve Portal performance. Caching allows the system to present the same report without having to build it from scratch (building a new report includes making a call to the database which can impact the time it requires to render).
The caching mechanism is implemented on the Portal server. Refer to the following topics for details: