||Oracle Tips by Burleson
Oracle Instance Internals Scripts
In the above report we see overallocation values,
this indicates that our setting is too small and should be increased
to at least 150 megabytes.
Database memory usage
monitoring is a complex topic involving the watching of latches,
locks waits, and events. All of these are controlled through a
series of settings controlled by the documented and undocumented
initialization parameters. The DBA must be aware of how to mine the
Oracle DPTs, X$, and data dictionary views to obtain the required
performance indicators for effective tuning to take place.
Other structures such as
the shared pool and data block buffers control the flow of code and
data in an Oracle system. In the next chapter we examine the shared
pool, Oracle's code repository.
The above text is
an excerpt from:
Ault’s Oracle Internals Monitoring & Tuning Scripts
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See the Oracle script collection::