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Oracle 11g Direct IO Auto Tune by fuyuncat
Generally, Direct IO faster than Read into Cache because it does not require to allocate memory. In 11g, Oracle intruduced a new feature --- Direct IO Auto Tuning --- to improve performance of reading/writing large size objects. It will determine whether to read data blocks directly from disk bypassing buffer cache or not, basing on the size of object and size of buffer cache.
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Execution plan problem caused by unbalanced partition and bind variable peeking by fuyuncat
A case: Execution plan problem caused by unbalanced partition and bind variable peeking
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FyDB becomes an open source project by fuyuncat
FyDB opens source, now.
If you want to join this project, please contact me by: fuyuncat@gmail.com
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