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Is there a way verify from Oracle DB whether huge pages are used or not?

edited Mar 30, 2022 11:21AM in Database Administration (MOSC) 2 commentsAnswered ✓

We have 2 Oracle DBs on a RHEL 7 VM. RAM on VM is 20GB. SGA per DB is 4GB. Thus total 8GB allocated to Oracle DBs. We have configured 4500 hugepages.

After restarting both the Oracle DBs, when I do "grep Huge /proc/meminfo", I see:

HugePages_Total: 4500 (approx)

HugePages_Free: 550 (approx)

This makes sense and confirms me that hugepages is getting used. However I wanted to know if there is a way to verify if all Oracle instances are using HP for the entire SGA. Is there any Oracle way to figure out the same ?


Regards,

Pratik Mehta

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