Invention Grant
- Patent Title: Performance state selection for low activity scenarios
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Application No.: US14846058Application Date: 2015-09-04
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Publication No.: US09785218B2Publication Date: 2017-10-10
- Inventor: Alexander J. Branover , Adam N. C. Clark , Ashish Jain , Sridhar V. Gada
- Applicant: Advanced Micro Devices, Inc. , ATI Technologies ULC
- Applicant Address: US CA Sunnyvale CA Markham Ontario
- Assignee: Advanced Micro Devices, Inc.,ATI Technologies ULC
- Current Assignee: Advanced Micro Devices, Inc.,ATI Technologies ULC
- Current Assignee Address: US CA Sunnyvale CA Markham Ontario
- Agency: Zagorin Cave LLP
- Main IPC: G06F1/32
- IPC: G06F1/32 ; G06F9/50
Abstract:
A power management controller tracks the idle state of a compute unit and compares the tracked idle state with a first threshold. If the tracked idle state is above the first threshold a power state of the compute unit is limited to a low power state so that the power state does not rise due to activity that occurs in low utilization scenarios. The tracked idle state is compared to a second threshold and if the tracked idle state is below the second threshold, indicating that the compute unit is not in a low utilization scenario, a limit on the power state is removed and the power state of the compute unit is allowed to rise.
Public/Granted literature
- US20160306406A1 Performance State Selection for Low Activity Scenarios Public/Granted day:2016-10-20
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