公开(公告)号：US20210334187A1

公开(公告)日：2021-10-28

申请号：US16860967

申请日：2020-04-28

Applicant: Intel Corporation

Inventor： Aman Sewani ,  Nazar Haider ,  Ankush Varma ,  Lan Vu

IPC: G06F11/30 ,  G06F1/3296 ,  G06F1/08

Abstract: A scheme is provided for a processor to measure or estimate the dynamic capacitance (Cdyn) associated with an executing application and take a proportional throttling action. Proportional throttling has significantly less impact on performance and hence presents an opportunity to get back the lost bins and proportionally clip power if it exceeds a specification threshold. The ability to infer a magnitude of power excursion of a power virus event (and hence, the real Cdyn) above a set power threshold limit enables the processor to proportionally adjust the processor operating frequency to bring it back under the limit. With this scheme, the processor distinguishes a small power excursion versus a large one and reacts proportionally, yielding better performance.

公开(公告)号：US12124350B2

公开(公告)日：2024-10-22

申请号：US16860967

申请日：2020-04-28

Applicant: Intel Corporation

Inventor： Aman Sewani ,  Nazar Haider ,  Ankush Varma ,  Lan Vu

IPC: G06F11/30 ,  G06F1/08 ,  G06F1/32 ,  G06F1/3296

CPC classification number: G06F11/3062 ,  G06F1/08 ,  G06F1/3296 ,  G06F11/3024

Abstract: A scheme is provided for a processor to measure or estimate the dynamic capacitance (Cdyn) associated with an executing application and take a proportional throttling action. Proportional throttling has significantly less impact on performance and hence presents an opportunity to get back the lost bins and proportionally clip power if it exceeds a specification threshold. The ability to infer a magnitude of power excursion of a power virus event (and hence, the real Cdyn) above a set power threshold limit enables the processor to proportionally adjust the processor operating frequency to bring it back under the limit. With this scheme, the processor distinguishes a small power excursion versus a large one and reacts proportionally, yielding better performance.