摘要:
A parallel multi-step power management flow apparatus and method for using the same are disclosed. In one embodiment, an integrated circuit comprises a plurality of processing entities to execute operations, a power controller coupled to the plurality of processing entities to control power management for the plurality of processing entities, and a plurality of agents, where each of the plurality of agents is operable to perform a power control flow for one of the processing entities by separately scheduling, using a scheduler, and executing a plurality of power control flow phases in response to a plurality of requests received from the power controller, and each agent is operable to send a plurality of acknowledgements, one acknowledgement for each phase, upon completion of the plurality of power control flow phases.
摘要:
In one embodiment, a processor comprises: a core to execute instructions; a fabric interface logic including a first storage to store state information of the core when the core is in a low power state; and an adapter unit including a second storage to store the state information of the core when the fabric interface logic is in a low power state. Other embodiments are described and claimed.
摘要:
In an embodiment, a processor includes multiple cores and a power controller. The power controller may include a hardware duty cycle (HDC) logic to cause at least one logical processor of one of the cores to enter into a forced idle state even though the logical processor has a workload to execute. In addition, the HDC logic may cause the logical processor to exit the forced idle state prior to an end of an idle period if at least one other logical processor is prevented from entry into the forced idle state. Other embodiments are described and claimed.
摘要:
In an embodiment, a processor includes one or more cores including a first core operable at an operating voltage between a minimum operating voltage and a maximum operating voltage. The processor also includes a power control unit including first logic to enable coupling of ancillary logic to the first core responsive to the operating voltage being less than or equal to a threshold voltage, and to disable the coupling of the ancillary logic to the first core responsive to the operating voltage being greater than the threshold voltage. Other embodiments are described and claimed.
摘要:
In an embodiment, a processor includes a core to execute instructions, where the core includes a clock generation logic to receive and distribute a first clock signal to a plurality of units of the core, a restriction logic to receive a restriction command and to reduce delivery of the first clock signal to at least one of the plurality of units. The restriction logic may cause the first clock signal to be distributed to the plurality of units at a lower frequency than a frequency of the first clock signal. Other embodiments are described and claimed.
摘要:
Described herein are technologies for optimizing different cache configurations of a size-configurable cache. One configuration includes a base cache portion and a removable cache portion, each with different latencies. The latency of the base cache portion is modified to correspond to the latency of the removable portion.
摘要:
Described herein are method, apparatus, and system for reducing leakage power consumption. The method comprises determining an input vector for input to a logic unit, the input vector for generating a least leakage power dissipation in the logic unit; and applying the input vector to the logic unit when a clock signal associated with the logic unit is gated. The method results in reduced leakage power consumption for the logic unit when the logic unit is not active with performing its normal operation, i.e. when the logic unit is idle.
摘要:
Described herein are technologies for optimizing different cache configurations of a size-configurable cache. One configuration includes a base cache portion and a removable cache portion, each with different latencies. The latency of the base cache portion is modified to correspond to the latency of the removable portion.
摘要:
An apparatus and method are described for performing history-based prefetching. For example a method according to one embodiment comprises: determining if a previous access signature exists in memory for a memory page associated with a current stream; if the previous access signature exists, reading the previous access signature from memory; and issuing prefetch operations using the previous access signature.
摘要:
Described herein are apparatus, system, and method for providing clock signal on demand. The method comprises determining an indication of clock signal usage in multiple hardware logic units; generating an enable signal according to the indication; and gating or un-gating the clock signal for clock islands of at least a hardware logic unit, of the multiple hardware logic units, in response to a logic level of the enable signal, wherein the clock islands are part of a global clock distribution network and are operable to be enabled or disabled independently.