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US 2006/0149975 A1Published application
Operating point management in multi-core architectures
AssigneeIntel Corporation
InventorsEfraim Rotem, Oren Lamdan, Alon Naveh
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Abstract
Systems and methods of managing operating points provide for determining the number of active cores in a plurality of processor cores. A maximum operating point is selected for at least one of the active cores based on the number of active cores. In one embodiment, the number of active cores is determined by monitoring an ACPI processor power state signal of each of the plurality of cores.
Claims29
A method comprising:
- determining a number of active cores in a plurality of processor cores;
- and
- selecting a maximum operating point for at least one of the active cores based on the number of active cores.
An apparatus comprising:
- a plurality of processor cores;
- and
- an activity module to determine a number of active cores in the plurality of processor cores and select a maximum operating point for at least one of the active cores based on the number of active cores.
A system comprising:
- a small outline dual inline memory module (SODIMM);
- and
- a processing architecture coupled to the SODIMM, the architecture including a plurality of processor cores and an activity module, the activity module to determine a number of active cores in the plurality of processor cores and select a maximum operating point for at least one of the active cores based on the number of active cores.
A method comprising:
- monitoring an Advanced Configuration and Power Interface (ACPI) processor power state (Cx state) signal of each of a plurality of processor cores;
- identifying whether each Cx state signal indicates that a corresponding core is active to determine a number of active cores in the plurality of processor cores;
- searching a configuration table for an entry containing the number of active cores;
- retrieving a maximum operating point from the entry;
- generating a limit request based on the maximum operating point;
- and
- limiting an operating parameter of the active cores based on the limit request.
4 more elements
Dependencies are inferred from the claim text.