摘要:
Systems and methods may provide for identifying runtime information associated with an active workload of a platform, and making an active idle state determination for the platform based on at least in part the runtime information. In addition, a low power state of a shared resource on the platform may be controlled concurrently with an execution of the active workload based on at least in part the active idle state determination.
摘要:
Systems and methods may provide for determining an absolute energy break-even time for a first low power state with respect to a current state of a system. A relative energy break-even time may also be determined for the first low power state with respect to a second low power state based on at least in part the absolute energy break-even time. In addition, an operating state may be selected for the system based on at least in part the relative energy break-even time.
摘要:
Systems and methods may provide for determining an absolute energy break-even time for a first low power state with respect to a current state of a system. A relative energy break-even time may also be determined for the first low power state with respect to a second low power state based on at least in part the absolute energy break-even time. In addition, an operating state may be selected for the system based on at least in part the relative energy break-even time.
摘要:
Techniques to provide processor state for implementing a power state transition of a processor. In an embodiment, an operating system executing on a processor detects an opportunity to transition the processor to an idle processor power state. In particular embodiments, the operating system initiates the transition by invoking a task switch, wherein information describing a state of the processor is saved to a task switch segment.
摘要:
Techniques to tie a processor power state transition on a platform to another power state transition on the platform. In an embodiment, processor governor functionality of an operating system detects an idle condition of a processor executing the operating system. Based on the processor idle condition and one or more indicated conditions of other platform devices, tying logic may determine a system power state to transition the platform to. For example, the tying logic may select from one of a plurality of idle standby system power states.
摘要:
Techniques to tie a processor power state transition on a platform to another power state transition on the platform. In an embodiment, processor governor functionality of an operating system detects an idle condition of a processor executing the operating system. Based on the processor idle condition and one or more indicated conditions of other platform devices, tying logic may determine a system power state to transition the platform to. For example, the tying logic may select from one of a plurality of idle standby system power states.
摘要:
Techniques to provide processor state for implementing a power state transition of a processor. In an embodiment, an operating system executing on a processor detects an opportunity to transition the processor to an idle processor power state. In particular embodiments, the operating system initiates the transition by invoking a task switch, wherein information describing a state of the processor is saved to a task switch segment.
摘要:
Systems and methods of managing power in a computing platform may involve monitoring a runtime power consumption of two or more of a plurality of hardware components in the platform to obtain a plurality of runtime power determinations. The method can also include exposing one or more of the plurality of runtime power determinations to an operating system associated with the platform.
摘要:
A system and method of managing power may include determining a power state based on a first power management request from a first operating system executing on a mobile platform and a second power management request from a second operating system executing on the mobile platform. The first operating system and one or more components of the mobile platform can define a first virtual machine, and the second operating system and one or more components of the mobile platform can define a second virtual machine. In addition, the power state may be applied to the mobile platform.
摘要:
Methods and apparatuses relating to transactional power management are described. In one embodiment, a hardware apparatus includes a hardware processor having a core, a plurality of power domains to transition to one of a plurality of power states in response to a power management command for each power domain, and a power transaction unit to assign a first power management command as a first power transaction and a second power management command as a second power transaction for concurrent execution, perform a commit of the first power transaction and the second power transaction when there is no conflict between the first power transaction and the second power transaction, and perform an abort of the first power transaction and a commit of the second power transaction when there is a conflict between the first power transaction and the second power transaction.