Bug 12530276 high 'direct path read' waits when buffer pools are not setupThis note gives a brief overview of bug 12530276.
The content was last updated on: 12-JUN-2012
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Product (Component) Oracle Server (Rdbms) Range of versions believed to be affected Versions >= 11.2 but BELOW 12.1 Versions confirmed as being affected Platforms affected Generic (all / most platforms affected)
This issue is fixed in
While detemining whether (being) scanned objects should be cached or direct read,Current code treats all 'keep objects' as large objects when 'keep pool' is not configured. This results in direct read of objects created with 'BUFFER_POOL KEEP' clause, even though they are small enough to be cached in default pool. Workaround Configure keep pool for keep objects db_keep_cache_size