NAMESPACE 

VARCHAR2(15) 

The library cache namespace 

GETS 

NUMBER 

The number of times a lock was requested for objects of this namespace 

GETHITS 

NUMBER 

The number of times an object's handle was found in memory 

GETHITRATIO 

NUMBER 

The ratio of GETHITS to GETS 

PINS 

NUMBER 

The number of times a PIN was requested for objects of this namespace 

PINHITS 

NUMBER 

The number of times all of the metadata pieces of the library object were found in memory 

PINHITRATIO 

NUMBER 

The ratio of PINHITS to PINS 

RELOADS 

NUMBER 

Any PIN of an object that is not the first PIN performed since the object handle was created, and which requires loading the object from disk 

INVALIDATIONS 

NUMBER 

The total number of times objects in this namespace were marked invalid because a dependent object was modified 

DLM_LOCK_REQUESTS 

NUMBER 

The number of GET requests lock instance locks 

DLM_PIN_REQUESTS 

NUMBER 

The number of PIN requests lock instance locks 

DLM_PIN_RELEASES 

NUMBER 

The number of release requests PIN instance locks 

DLM_INVALIDATION _REQUESTS 

NUMBER 

The number of GET requests for invalidation instance locks 

DLM_INVALIDATIONS 

NUMBER 

The number of invalidation pings received from other instances