摘要:
The aspects enable a computing device or microprocessor to determine a low power mode that provides the most system power savings by placing selected resources in a low power mode while continuing to function reliably, depending upon the resources not in use, acceptable system latencies, dynamic operating conditions (e.g., temperature), expected idle time, and the unique electrical characteristics of the particular device. Aspects provide a mechanism for determining an optimal low power configuration made up of a set of low power modes for the various resources within the computing device by determining which low power modes are valid at the time the processor enters an idle state, ranking the valid low power modes by expected power savings given the current device conditions, determining which valid low power mode provides the greatest power savings while meeting the latency requirements, and selecting a particular low power mode for each resource to enter.
摘要:
In a portable computing device having a node-based resource architecture, a first or distributed node controlled by a first processor but corresponding to a second or native node controlled by a second processor is used to indirectly access a resource of the second node. In a resource graph defining the architecture each node represents an encapsulation of functionality of one or more resources, each edge represents a client request, and adjacent nodes represent resource dependencies. Resources defined by a first graph are controlled by the first processor but not the second processor, while resources defined by a second graph are controlled by the second processor but not the first processor. A client request on the first node may be received from a client under control of the first processor. Then, a client request may be issued on the second node in response to the client request on the first node.
摘要:
A method and system for managing resources of a portable computing device is disclosed. The method includes receiving node structure data for forming a node, in which the node structure data includes a unique name assigned to each resource of the node. A node has at least one resource and it may have multiple resources. Each resource may be a hardware or software element. The method also includes receiving marker data and creating a marker. A marker includes a legacy element such as a hardware or software element. The system includes a framework manger which handles the communications between existing nodes and markers within a node architecture. The framework manager also logs activity of each resource and marker by using its unique name. The framework manager may send this logged activity to an output device, such as a printer or a display screen.
摘要:
A method of sampling data within a central processing unit (CPU) is disclosed. The method may include monitoring CPU activity, determining whether the CPU enters idle, and executing a dynamic clock and voltage switching (DCVS) algorithm if the CPU enters idle.
摘要:
A method and system for maximizing a quality of service (“QoS”) level in a portable computing device (“PCD”) by preempting the generation of thermal energy in excess of a threshold are disclosed. The method includes receiving a workload request for a processing component within the PCD. A processing component is selected for allocation of the workload based on thermal factors associated with the processing component. Thermal factors may comprise data indicative of real-time thermal energy generation near the processing component, predictive data derived from known characteristics of heat producing components that are physically proximate to the processing component, queued workload burdens for the processing component, etc. A processing component is selected for allocation of the workload based on the thermal factors. By leveraging the thermal factors to allocate workloads, thermal generation can be proactively managed such that reliance on reactive thermal mitigation techniques, which negatively impact QoS, can be reduced.
摘要:
A mobile device, a method for managing and exposing a set of performance scaling algorithms on the device, and a computer program product are disclosed. The mobile device includes a multiple-core processor communicatively coupled to a non-volatile memory. The non-volatile memory includes a set of programs defined by a respective combination of a performance scaling algorithm and a set of parameters, a startup program that when executed by the multiple-core processor identifies at least one member of the set of programs suitable for monitoring operation of the mobile device and scaling the performance of an identified processor core and an application programming interface that exposes the set of programs.
摘要:
A method and system for managing resources of a portable computing device is disclosed. The method includes receiving node structure data for forming a node, in which the node structure data includes a unique name assigned to each resource of the node. A node has at least one resource and it may have multiple resources. Each resource may be a hardware or software element. The method also includes receiving marker data and creating a marker. A marker includes a legacy element such as a hardware or software element. The system includes a framework manger which handles the communications between existing nodes and markers within a node architecture. The framework manager also logs activity of each resource and marker by using its unique name. The framework manager may send this logged activity to an output device, such as a printer or a display screen.
摘要:
The aspects enable a computing device or microprocessor to determine a low-power mode that maximizes system power savings by placing selected resources in a low power mode while continuing to function reliably, depending upon the resources not in use, acceptable system latencies, dynamic operating conditions (e.g., temperature), expected idle time, and the unique electrical characteristics of the particular device. The various aspects provide mechanisms and methods for compiling a plurality of low power resource modes to generate one or more synthetic low power resources from which can be selected an optimal low-power mode configuration made up of a set of selected synthetic low power resources.
摘要:
A method of controlling power at a central processing unit is disclosed. The method may include moving to a higher CPU frequency after a transient performance deadline has expired, entering an idle state, and resetting the transient performance deadline based on an effective transient budget.
摘要:
A method of tuning a dynamic clock and voltage switching algorithm is disclosed and may include setting a default responsivity, determining whether a workload is registering after the workload is added, assigning a unique identifier to the workload if the workload is registering, and receiving a required responsivity from the workload.