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Oracle Shared Pool Internals: List Chunk Position in the LRU List

There was a discussion at Oracle-L about shared pool chunk eviction and I thought I’d show how to see a shared pool memory chunk’s position in the LRU list yourself. This is a post mostly about Oracle internals and less about practical every day troubleshooting.
There’s a view X$KGHLU (@kghlu.sql script) that shows you a summary of shared pool (sub)heap allocations and how many of these chunks are in the “transient list” (used once) vs.