Large Pool

Database buffer cache

Shared pool

Library cache

• Can be configured as a separate memory area in the SGA, used for memory with: – I/O server processes: DBWR_IO_SLAVES – Oracle backup and restore operations – Session memory for the multithreaded servers – Parallel query messaging • Is useful in these situations to avoid performance overhead caused by shrinking the shared SQL cache • Is sized by the LARGE_POOL_SIZE parameter