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Criteria for CPU core sizing when migrating Oracle DBs from SPARC/Solaris to Linux

edited Apr 5, 2026 8:34PM in Database Install/Upgrade/Opatch (MOSC) Question

Hi all,

I'm planning a migration of several Oracle 19c CDB instances from SPARC/Solaris (with LDOMs) to Linux (Red Hat 8/9) and am trying to determine the right number of physical CPU cores for the new servers.

I have 30-day AWR data available (CPU usage, AAS, wait events, I/O). My question is: what are the key indicators or rules you use to derive the required core count from AWR data?

Any real-world experience or methodology appreciated.

Thanks

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