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About Background Processes
The background processes of the Oracle instancc manage memory structures, asynchronously perform I/O to write data to a file on a disk, and perform generał maintenance tasks. The background processes consolidate functions that would otherwise be handled by multiple Oracle Database programs running for each user process. They monitor other Oracle Database processes to provide incrcascd parallelism for better performance and reliability.
The background processes that are present depend on the features that are being used in the database. Some fundamental background processes are describcd in Tablc 5-1.
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