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Nov 20, 2015 · Databases

How Hotcopy Can Reduce Oracle library cache: mutex X Contention

This article explains why repeated SQL execution can cause library cache: mutex X contention in Oracle, describes the underlying hash‑bucket and handle locking mechanisms, and demonstrates how creating hotcopy objects—using hidden parameters and APIs—can alleviate hotspot mutex waits, with experimental results showing up to 50% reduction in wait time.