公开(公告)号：US11360820B2

公开(公告)日：2022-06-14

申请号：US15996469

申请日：2018-06-02

Applicant: Apple Inc.

Inventor： John G. Dorsey ,  Daniel A. Chimene ,  Andrei Dorofeev ,  Bryan R. Hinch ,  Evan M. Hoke ,  Aditya Venkataraman

IPC: G06F9/50 ,  G06F9/48 ,  G06F1/3234 ,  G06F1/329 ,  G06F1/3296 ,  G06F9/38 ,  G06F9/26 ,  G06F9/54 ,  G06F1/20 ,  G06F1/324 ,  G06F1/3206 ,  G06F9/30

Abstract: Systems and methods are disclosed for scheduling threads on an asymmetric multiprocessing system having multiple core types. Each core type can run at a plurality of selectable voltage and frequency scaling (DVFS) states. Threads from a plurality of processes can be grouped into thread groups. Execution metrics are accumulated for threads of a thread group and fed into a plurality of tunable controllers. A closed loop performance control (CLPC) system determines a control effort for the thread group and maps the control effort to a recommended core type and DVFS state. A closed loop thermal and power management system can limit the control effort determined by the CLPC for a thread group, and limit the power, core type, and DVFS states for the system. Metrics for workloads offloaded to co-processors can be tracked and integrated into metrics for the offloading thread group.

公开(公告)号：US11809256B2

公开(公告)日：2023-11-07

申请号：US17521567

申请日：2021-11-08

Applicant: Apple Inc.

Inventor： James S. Ismail ,  Bryan R. Hinch ,  Evan M. Hoke ,  Andrei Dorofeev ,  Shirin Dadashi ,  Mohsen Heidarinejad ,  Reza Arastoo

IPC: G06F1/3228 ,  G06F1/3215 ,  G06F1/20

CPC classification number: G06F1/3228 ,  G06F1/206 ,  G06F1/3215

Abstract: Embodiments are presented herein of, inter alia, systems, devices, and associated methods for allocating and distributing power management budgets for classes of tasks being executed by a computer system, based on thermal feedback loops. Specifically, multiple quality-of-service (QoS) tiers may be defined, and each QoS tier may be allocated power based on a different set of thermal feedback loops. QoS tiers including tasks that are invisible to the user may be mitigated more aggressively than QoS tiers including tasks that are visibly supporting user operations.

公开(公告)号：US11231966B2

公开(公告)日：2022-01-25

申请号：US16147077

申请日：2018-09-28

Applicant: Apple Inc.

Inventor： John G. Dorsey ,  Daniel A. Chimene ,  Andrei Dorofeev ,  Bryan R. Hinch ,  Evan M. Hoke ,  Aditya Venkataraman

IPC: G06F9/50 ,  G06F9/48 ,  G06F1/3234 ,  G06F1/329 ,  G06F1/3296 ,  G06F9/38 ,  G06F9/26 ,  G06F9/54 ,  G06F1/20 ,  G06F1/324 ,  G06F1/3206 ,  G06F9/30

Abstract: Systems and methods are disclosed for scheduling threads on an asymmetric multiprocessing system having multiple core types. Each core type can run at a plurality of selectable voltage and frequency scaling (DVFS) states. Threads from a plurality of processes can be grouped into thread groups. Execution metrics are accumulated for threads of a thread group and fed into a plurality of tunable controllers. A closed loop performance control (CLPC) system determines a control effort for the thread group and maps the control effort to a recommended core type and DVFS state. A closed loop thermal and power management system can limit the control effort determined by the CLPC for a thread group, and limit the power, core type, and DVFS states for the system. Metrics for workloads offloaded to co-processors can be tracked and integrated into metrics for the offloading thread group.

公开(公告)号：US20220147132A1

公开(公告)日：2022-05-12

申请号：US17521567

申请日：2021-11-08

Applicant: Apple Inc.

Inventor： James S. Ismail ,  Bryan R. Hinch ,  Evan M. Hoke ,  Andrei Dorofeev ,  Shirin Dadashi ,  Mohsen Heidarinejad ,  Reza Araston

IPC: G06F1/3228 ,  G06F1/20 ,  G06F1/3215

Abstract: Embodiments are presented herein of, inter alia, systems, devices, and associated methods for allocating and distributing power management budgets for classes of tasks being executed by a computer system, based on thermal feedback loops. Specifically, multiple quality-of-service (QoS) tiers may be defined, and each QoS tier may be allocated power based on a different set of thermal feedback loops. QoS tiers including tasks that are invisible to the user may be mitigated more aggressively than QoS tiers including tasks that are visibly supporting user operations.