How does the SAP HANA XS application server enhance application performance?

The SAP HANA XS application server enhances application performance by allowing lightweight applications to run directly on the database. This architecture is particularly beneficial because it minimizes the need for data movement between a separate application server and the database. By executing application logic close to where the data resides, the XS application server takes advantage of the in-memory processing capabilities of HANA, resulting in faster data retrieval and reduced latency. This setup also enables rapid development and deployment of applications, as developers can build applications directly in the HANA environment without relying on external servers.

This model contrasts with approaches that depend on external storage options or complex multi-layered data processing methods, which can introduce additional layers of complexity and latency. While security and data access controls are essential aspects of application design, they are not primarily responsible for the performance enhancements attributed to the XS application server's architecture.