Contents
SharePoint Server provides four types of caches that help improve the speed at which web pages load in the browser: the BLOB cache, the page output cache, the object cache, and the anonymous search results cache.
Configure cache settings for a web application in SharePoint Server – Describes how to configure the disk-based BLOB cache, the page output cache profiles, and the object cache for a web application. Configure object cache user accounts in SharePoint Server – Describes how to configure the object cache user accounts.
How does cache compaction work in SharePoint Server?
Cache compaction (also known as trimming), happens when a cache becomes full and additional requests for non-cached content are received. During compaction, the system identifies a subset of the contents in the cache to remove, and removes them. Typically these contents are not requested as frequently.
Why is the Blob cache off in SharePoint?
By default, the BLOB cache is off and must be enabled to use the functionality it provides. When you enable the BLOB cache on your front-end web server, you reduce the load on the SharePoint Server database server created by read requests from web browsers.
The page output cache uses cache profiles that specify how long items should be held in the cache. You can specify different cache profiles to be used for anonymous and authenticated users, which optimizes the use of the cache based on the authentication methods that are allowed on the site.
In a SharePoint Server farm, a cache cluster exists when one or more cache hosts run the Distributed Cache service. In a SharePoint Server farm, one cache exists, and the cache spans the cache cluster. An administrator may need to move the cached contents to another cache host when applying updates to the server.