Modifying Parameters for Manually Sized Components (106)
Parameters for manually sized
components can be dynamically altered as well. However, rather than setting a
minimum size, the value of the parameter specifies the precise size of the
corresponding component. When you increase the size of a manually sized
component, extra memory is taken away from one or more automatically sized
components. When you decrease the size of a manually sized component, the memory
that is released is given to the automatically sized components.
For example, consider this configuration:
■ SGA_TARGET = 512M
■ DB_8K_CACHE_SIZE = 128M
In this example, increasing DB_8K_CACHE_SIZE by 16 M to 144M means that the 16M
is taken away from the automatically sized components. Likewise, reducing
DB_8K_CACHE_SIZE by 16M to 112M means that the 16M is given to the
automatically sized components.
For example, consider this configuration:
■ SGA_TARGET = 512M
■ DB_8K_CACHE_SIZE = 128M
In this example, increasing DB_8K_CACHE_SIZE by 16 M to 144M means that the 16M
is taken away from the automatically sized components. Likewise, reducing
DB_8K_CACHE_SIZE by 16M to 112M means that the 16M is given to the
automatically sized components.
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