Performance linked pay. What does it mean?

In his interview Hon'ble Justice Sri Krishna hinted about the performance linked incentives to the central government employees in the sixth pay commission recommendation. It is neither appropriate nor desirable to introduce such a thing. It will give chance to 'chamchagiri' and create a lot of heart burn. Earlier in one of the autonomous scientific organizations such a scheme called "Merit Promotion" was introduced but later withdrawn. Let us hope that the Commission will not provide any loopholes for the employers (superiors) to use more powers at their whims and fancies. The CRs itself is a waste and if we introduce another angle to it, it will create even more problems.