How do you stop demoted queries from hogging CPU? - response (1) by Shelley

How have you defined your penalty box cpu allocation?
If there is no hard limit it can consume any available cpu on the system
You also need to be aware that if you have many queries going into the penalty box you could end up tying up AWT's because processing will take longer.
When using a penalty box, you really need to make sure you are clear on what kind of situation you are trying to resolve.
--Shelley