When a DVM is first called into use, the DVM gets loaded into the cache from the MDS. Subsequent lookups are faster, as the DVM is picked from the cache.

If you have a lot of records in your DVMs, you may want to preload the DVMs into the cache during server startup, so that the DVMs are readily available for first use.

You can choose to preload the DVM cache at server startup using the MBean property LoadDVMsAtStartup in the System MBean Browser of Oracle Enterprise Manager Fusion Middleware Control. Setting LoadDVMsAtStartup to true loads all the DVMs into the cache at server startup. The default value for LoadDVMsAtStartup is false.