oracle active sessions waiting for scheduler Load on my 11g RAC looks like this:



and I don't understand how to get insight into what this "scheduler" wait class is.  It seems like "scheduler" that it refers to is the process that runs scheduled maintenance jobs?  But can I see which jobs they are?  All I see is normal queries waiting for the "scheduler".

The wait even class is "resmgr: cpu quantum"
They are Oracle Resource Manager waits. Resource Manager is a set of Oracle functionality that lets you prioritise work.

See the list of possible waits in the documentation.