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Granule (Oracle DBMS): Virtual Memory, Big Ball of Mud, Bug Bash
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Dieser Artikel gilt, aufgrund seiner Grösse, beim Versand als 2 Artikel!
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| Please note that the content of this book primarily consists of articles
available from Wikipedia or other free sources online. In computing, a
granule is a unit of contiguous (adjacent/bordering) virtual memory
allocated to a process. In the Oracle DBMS, the Oracle server allocates
the system global area (SGA) in granule units at the time of instance
startup. During the startup, each component acquires as many granules as
it requires. The SGA can be said to consist of linked granules. The
granule size depends on the database version and sometimes on the
operating system. In Oracle 9i and earlier, it is 4 MB if the SGA size
is less than 128 MB, and 16 MB otherwise. For later releases, it is
typically 4 MB if the SGA size is less than 1 GB, and 16 MB otherwise.
There must be at least 3 granules in the SGA: one for the Database
Buffer Cache, one for the Shared Pool Area and one for the Redo Log
Buffer. |
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i.d.R. innert 7-14 Tagen versandfertig
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