Performing power management in a multicore processor

A machine-readable medium having stored thereon data, which if used by at least one machine, causes the at least one machine to fabricate at least one integrated circuit to perform a method comprising:

• determining, via a migration logic of a processor, a type of workload executing on the processor based on performance metric information received from a plurality of first cores of the processor;
• updating, via the migration logic, a count value in a first direction if the workload type is determined to be a first workload type and updating the count value in a second direction if the workload type is determined to be a second workload type;
• and
• migrating, via the migration logic, one or more threads from the plurality of first cores to at least one second core of the processor if the count value meets a first threshold level, and otherwise maintaining the one or more threads on the plurality of first cores.

A system comprising:

• a processor including:
• a plurality of first cores to independently execute instructions;
• a second core to perform memory operations;
• and
• a power controller coupled to the plurality of first cores and the second core to:
• receive workload characteristic information of a workload executed on a first number of active first cores in a first operation interval;
• classify the workload based at least in part on the workload characteristic information;
• and
• migrate one or more threads of the workload from the first number of active first cores to the second core for a next operation interval based at least in part on the workload classification of a memory bound workload, and cause one or more of the plurality of first cores to be in a low power state for the next operation interval;
• and
• a dynamic random access memory (DRAM) coupled to the processor.