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Oracle® Database Reference
11g Release 2 (11.2)

E40402-15
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V$JAVA_POOL_ADVICE

V$JAVA_POOL_ADVICE displays information about estimated parse time in the Java pool for different pool sizes. The sizes range from 10% of the current Java pool size or the amount of pinned Java library cache memory (whichever is higher) to 200% of the current Java pool size, in equal intervals. The value of the interval depends on the current size of the Java pool.

Parse time saved refers to the amount of time saved by keeping library cache memory objects in the Java pool, as opposed to having to reload these objects.

Column Datatype Description
JAVA_POOL_SIZE_FOR_ESTIMATE NUMBER 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