What Is Correct Setting for _px_numa_support_enabled for 12c Databases That Wish to Use NUMA? (Doc ID 1956463.1)

Last updated on JANUARY 18, 2017

Applies to:

Oracle Database - Enterprise Edition - Version 12.1.0.2 and later
Information in this document applies to any platform.

Goal

We have two two-node RAC databases one at 11.2.0.3 and one at 12.1.0.2 that are intended to run using NUMA.
We have set the parameter "_enable_NUMA_support" to true on both databases, but when we list out the numa related parameters
we find that on 11.2.0.3 the setting for "_px_numa_support_enabled" is TRUE, whereas on 12.1.0.2 the value is FALSE. Our question
is: Will this difference affect parallel executions differently between the two version? We set the NUMA parameter following MOS note 864633.1
which details the process for 11gR2 we could not find an equivalent note for 12c.

Solution

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