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Oracle® Database Reference
10g Release 2 (10.2)

Part Number B14237-01
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V$SHARED_POOL_RESERVED

This fixed view lists statistics that help you tune the reserved pool and space within the shared pool.

Column Datatype Description
The following columns of V$SHARED_POOL_RESERVED are valid only if the initialization parameter SHARED_POOL_RESERVED_SIZE is set to a valid value.

See Also: "SHARED_POOL_RESERVED_SIZE"

FREE_SPACE NUMBER Total amount of free space on the reserved list
AVG_FREE_SIZE NUMBER Average size of the free memory on the reserved list
FREE_COUNT NUMBER Number of free pieces of memory on the reserved list
MAX_FREE_SIZE NUMBER Size of the largest free piece of memory on the reserved list
USED_SPACE NUMBER Total amount of used memory on the reserved list
AVG_USED_SIZE NUMBER Average size of the used memory on the reserved list
USED_COUNT NUMBER Number of used pieces of memory on the reserved list
MAX_USED_SIZE NUMBER Size of the largest used piece of memory on the reserved list
REQUESTS NUMBER Number of times that the reserved list was searched for a free piece of memory
REQUEST_MISSES NUMBER Number of times the reserved list did not have a free piece of memory to satisfy the request, and started flushing objects from the LRU list
LAST_MISS_SIZE NUMBER Request size of the last request miss, when the reserved list did not have a free piece of memory to satisfy the request and started flushing objects from the LRU list
MAX_MISS_SIZE NUMBER Request size of the largest request miss, when the reserved list did not have a free piece of memory to satisfy the request and started flushing objects from the LRU list
The following columns of V$SHARED_POOL_RESERVED contain values which are valid even if SHARED_POOL_RESERVED_SIZE is not set.
REQUEST_FAILURES NUMBER Number of times that no memory was found to satisfy a request (that is, the number of times the error ORA-04031 occurred)
LAST_FAILURE_SIZE NUMBER Request size of the last failed request (that is, the request size for the last ORA-04031 error)
ABORTED_REQUEST_THRESHOLD NUMBER Minimum size of a request which signals an ORA-04031 error without flushing objects
ABORTED_REQUESTS NUMBER Number of requests that signalled an ORA-04031 error without flushing objects
LAST_ABORTED_SIZE NUMBER Last size of the request that returned an ORA-04031 error without flushing objects from the LRU list