1. A system for performing a clock adjustment procedure, comprising: a multi-core processor that includes a plurality of processor cores that each operate with reference to a target clock signal to perform processing tasks, said processor cores including one or more non-functional processor cores, remaining ones of said processor cores being functional processor cores; and a clock manager that performs said clock adjustment procedure by selecting a target clock frequency for said target clock signal, said target clock frequency allowing said functional processor cores to compensate for said non-functional processor cores by collectively performing said processing tasks.