Abstract:
A processing device includes a plurality of processing cores, a control register, associated with a first processing core of the plurality of processing cores, to store a first base clock frequency value at which the first processing core is to run, and a power management circuit to receive a base clock frequency request comprising a second base clock frequency value, store the second base clock frequency value in the control register to cause the first processing core to run at the second base clock frequency value, and expose the second base clock frequency value on a hardware interface associated with the power management circuit.
Abstract:
In an embodiment, a processor includes a plurality of cores each to independently execute instructions, a power delivery logic coupled to the plurality of cores, and a power controller including a first logic to cause a first core to enter into a first low power state of an operating system power management scheme independently of the OS, during execution of at least one thread on the first core. Other embodiments are described and claimed.
Abstract:
A multicore processor may include multiple processing cores that were previously designated as active cores and at least one processing core that was previously designated as a functional spare. The processor may include an interface to receive, during operation of the processor in an end-user environment, a request to change the designation of at least one of the processing cores. The processor may be to store, into a desired cores configuration data structure in response to the request, data representing a bitmask that reflects the requested change, and to execute a reset sequence. During the reset sequence, the processor may activate, dependent on the bitmask, a processing core previously designated as a functional spare, or may deactivate, dependent on the bitmask, a processing core previously designated as an active core. The processor may include a predetermined maximum number of active cores and a predetermined minimum number of functional spares.
Abstract:
In one embodiment, the present invention includes a multicore processor having a power controller with logic to dynamically switch a power management policy from a power biased policy to a performance biased policy when a utilization of the processor exceeds a threshold level. Thus at low utilizations, reduced power consumption can be realized, while at higher utilizations, greater performance can be realized. Other embodiments are described and claimed.
Abstract:
In an embodiment, a processor includes a first chip of a multi-chip package (MCP). The first chip includes at least one core and first chip temperature control (TC) logic to assert a first power adjustment signal at a second chip of the MCP responsive to an indication that a first chip temperature of the first chip exceeds a first threshold. The processor also includes a conduit that includes a bi-directional pin to couple the first chip to the second chip within the MCP. The conduit is to transport the first power adjustment signal from the first chip to the second chip and the first power adjustment signal is to cause an adjustment of a second chip power consumption of the second chip. Other embodiments are described and claimed.
Abstract:
A processing device includes a plurality of processing cores, a control register, associated with a first processing core of the plurality of processing cores, to store a first base clock frequency value at which the first processing core is to run, and a power management circuit to receive a base clock frequency request comprising a second base clock frequency value, store the second base clock frequency value in the control register to cause the first processing core to run at the second base clock frequency value, and expose the second base clock frequency value on a hardware interface associated with the power management circuit.
Abstract:
In an embodiment, a processor includes a plurality of cores each to independently execute instructions, a power delivery logic coupled to the plurality of cores, and a power controller including a first logic to cause a first core to enter into a first low power state of an operating system power management scheme independently of the OS, during execution of at least one thread on the first core. Other embodiments are described and claimed.
Abstract:
In an embodiment, a processor includes a plurality of cores each to independently execute instructions, a power delivery logic coupled to the plurality of cores, and a power controller including a first logic to cause a first core to enter into a first low power state of an operating system power management scheme independently of the OS, during execution of at least one thread on the first core. Other embodiments are described and claimed.
Abstract:
In one embodiment, the present invention includes a processor having a core and a power controller to control power management features of the processor. The power controller can receive an energy performance bias (EPB) value from the core and access a power-performance tuning table based on the value. Using information from the table, at least one setting of a power management feature can be updated. Other embodiments are described and claimed.
Abstract:
A processor is described that includes a processing core and a plurality of counters for the processing core. The plurality of counters are to count a first value and a second value for each of multiple threads supported by the processing core. The first value reflects a number of cycles at which a non sleep state has been requested for the first value's corresponding thread, and, a second value that reflects a number of cycles at which a non sleep state and a highest performance state has been requested for the second value's corresponding thread. The first value's corresponding thread and the second value's corresponding thread being a same thread.