Invention Grant
- Patent Title: Closed loop CPU performance control
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Application No.: US15471553Application Date: 2017-03-28
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Publication No.: US10431181B2Publication Date: 2019-10-01
- Inventor: John G. Dorsey , James S. Ismail , Keith Cox , Gaurav Kapoor
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Kilpatrick Townsend & Stockton LLP
- Main IPC: G06F5/00
- IPC: G06F5/00 ; G06F1/26 ; G09G5/00 ; G06T1/20 ; G09G5/18 ; G06F1/324 ; G06F1/3296 ; G06T1/60 ; G06F1/20 ; G06T13/80

Abstract:
The invention provides a technique for targeted scaling of the voltage and/or frequency of a processor included in a computing device. One embodiment involves scaling the voltage/frequency of the processor based on the number of frames per second being input to a frame buffer in order to reduce or eliminate choppiness in animations shown on a display of the computing device. Another embodiment of the invention involves scaling the voltage/frequency of the processor based on a utilization rate of the GPU in order to reduce or eliminate any bottleneck caused by slow issuance of instructions from the CPU to the GPU. Yet another embodiment of the invention involves scaling the voltage/frequency of the CPU based on specific types of instructions being executed by the CPU. Further embodiments include scaling the voltage and/or frequency of a CPU when the CPU executes workloads that have characteristics of traditional desktop/laptop computer applications.
Public/Granted literature
- US20170330528A1 CLOSED LOOP CPU PERFORMANCE CONTROL Public/Granted day:2017-11-16
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