Intel Corporation

Marc Beuchat

Murali Ramadoss

Eric C Samson

Ankur N Shah

Jason Daniel Tanner

Methods and apparatus relating to advanced graphics Power State management are described. In one embodiment, measurement logic detects information about idle transitions and active transitions of a power-well of a processor. In turn, determination logic determines performance loss and/or energy gain based at least in part on the detected information and power-on latency of the power-well of the processor. Other embodiments are also disclosed and claimed.

Advanced graphics power state management

Methods and apparatus relating to techniques for repeating graphics render pattern detection are described. In an embodiment, a repeating pattern in a plurality of workload blocks is detected. Information corresponding to the plurality of workload blocks is stored and analyzed to determine a Dynamic Voltage Frequency Scaling (DVFS) sampling window of a processor. Other embodiments are also disclosed and claimed.

Repeating graphics render pattern detection

Methods and apparatus relating to techniques for runtime flip stability characterization are described. In an embodiment, logic circuitry determines the amount of work to be performed by a processor to render a pattern during each of a plurality of Vertical blank (Vblank) intervals. Memory stores information corresponding to a workload to be executed by the processor during each of the plurality of Vblank intervals. An operating frequency of the processor may then be modified based at least in part on analysis of the stored information to indicate which of the plurality of Vblank intervals would provide an improved stability for rendering the pattern. Other embodiments are also disclosed and claimed.

Runtime flip stability characterization

One embodiment provides an apparatus. The apparatus includes a graphics processor and power management logic. The graphics processor includes display engine logic and encoder logic. The power management logic is to adjust an operating frequency of the encoder logic based, at least in part, on an encode time duration and based, at least in part, on a frame period.

Graphics processor power management

One or more system, apparatus, method, and computer readable media is described below for power management of one or more graphics processor resources. In some embodiments, a graphics processor context associated with an application an including power-related hardware configuration and control parameters is stored to memory. In some embodiments, graphics processor contexts are switched in and out as different application workloads are processed by resources of the graphics processor. In some embodiments, power-performance management algorithms are grouped and sequentially executed in ordered phases of a control loop to generate a compatible set of control parameter requests. Once finalized, the set is output as requests to graphics processor hardware and/or updates to stored graphics processor contexts.

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Yakum, Israel

Marc Beuchat