What is the primary function of the Sitecore Cache Administration page?

The primary function of the Sitecore Cache Administration page is to display and configure cache settings. This page provides administrators with a centralized interface to view the different cache types that Sitecore uses to improve performance, such as the item cache, layout cache, and data cache. By managing these settings, administrators can optimize how data is stored and retrieved, ensuring that site performance remains at its peak. For instance, adjusting cache settings can help to control memory usage and response times, enhancing the overall user experience on the site.

The other options presented do not accurately reflect the specific responsibilities of the Cache Administration page. Managing user roles and permissions pertains to security administration rather than caching features. Compiling search index updates is associated with the indexing process rather than caching management. Optimizing database performance is also a broader maintenance task that is not confined to cache settings but encompasses various aspects of database management and configuration.