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May 30, 2016 · Databases
Why Uncommitted Updates in Oracle RAC Trigger Massive GC Waits and How to Fix Them
An Oracle RAC performance analysis shows that delayed commits on a configuration table cause frequent gc buffer busy acquire and gc cr block busy waits, dramatically slowing SELECT statements, increasing LMS/LGWR CPU usage, and prompting short‑ and long‑term mitigation strategies.
AWROracle RACcache fusion
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