What is the purpose of the _px_load_balancing_policy database parameter?
After upgrading our production 2-node cluster/RAC from 11.2.0.3 to 12.1.0.2, I compared the parameters set on this database to one that has been upgraded and verified previously and found that the _px_load_balancing_policy exists on the previously upgraded database but not on the production database that was recently upgraded. I am trying to find information regarding this parameter and something that tells me whether or not adding it into the configuration of the production database(s) will help improve performance.
I have opened a ticket, SR 3-13139907611, asking the same question and, as usual getting support input and approval before using any undocumented parameter.