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Oracle® Database Reference
11g Release 2 (11.2)

Part Number E17110-04
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DBA_HIST_JAVA_POOL_ADVICE

DBA_HIST_JAVA_POOL_ADVICE displays historical information about estimated parse time in the Java pool for different pool sizes. This view contains snapshots of V$JAVA_POOL_ADVICE.

Column Datatype NULL Description
SNAP_ID NUMBER NOT NULL Unique snapshot ID
DBID NUMBER NOT NULL Database ID for the snapshot
INSTANCE_NUMBER NUMBER NOT NULL Instance number for the snapshot
JAVA_POOL_SIZE_FOR_ESTIMATE NUMBER NOT NULL Java pool size for the estimate (in megabytes)
JAVA_POOL_SIZE_FACTOR NUMBER   Size factor with respect to the current Java pool size
ESTD_LC_SIZE NUMBER   Estimated memory in use by the library cache (in megabytes)
ESTD_LC_MEMORY_OBJECTS NUMBER   Estimated number of library cache memory objects in the Java pool of the specified size
ESTD_LC_TIME_SAVED NUMBER   Estimated elapsed parse time saved (in seconds), owing to library cache memory objects being found in a Java pool of the specified size. This is the time that would have been spent in reloading the required objects in the Java pool had they been aged out due to insufficient amount of available free memory.
ESTD_LC_TIME_SAVED_FACTOR NUMBER   Estimated parse time saved factor with respect to the current Java pool size
ESTD_LC_LOAD_TIME NUMBER   Estimated elapsed time (in seconds) for parsing in a Java pool of the specified size.
ESTD_LC_LOAD_TIME_FACTOR NUMBER   Estimated load time factor with respect to the current Java pool size
ESTD_LC_MEMORY_OBJECT_HITS NUMBER   Estimated number of times a library cache memory object was found in a Java pool of the specified size