公开(公告)号：US09377842B2

公开(公告)日：2016-06-28

申请号：US13904461

申请日：2013-05-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： David Koo ,  Li Li

IPC: G06F1/32 ,  G06F9/50

CPC classification number: G06F1/324 ,  G06F1/3203 ,  G06F1/329 ,  G06F9/505 ,  G06F9/5083 ,  G06F9/5094 ,  Y02D10/126 ,  Y02D10/22 ,  Y02D10/24

Abstract: A method and apparatus are disclosed for conserving CPU power. The method includes: obtaining CPU occupation rates of all threads triggering frequency adjustment in each domain and domains those threads belong to; in a domain a thread triggering frequency adjustment belongs to, calculating a target CPU frequency to be adjusted to according to the CPU occupation rate of the thread triggering frequency adjustment; calculating a timer parameter according to the target CPU frequency and setting a CPU frequency value for the thread triggering frequency adjustment. CPU frequency values of threads in each domain are synchronized according to the CPU occupation rate of each thread trigging frequency adjustment in this disclosure, so as to synchronize the CPU frequency values in a multi-core system to conserve CPU power.

Abstract translation: 公开了一种用于节省CPU功率的方法和装置。 该方法包括：获取所有线程的CPU占用率，触发每个域中的频率调整以及这些线程所属的域; 在域中一个线程触发频率调整属于，根据线程触发频率调整的CPU占用率计算要调整的目标CPU频率; 根据目标CPU频率计算定时器参数，并设置线程触发频率调整的CPU频率值。 根据本公开中每个线程触发频率调整的CPU占用率，每个域中的线程的CPU频率值被同步，以便同步多核系统中的CPU频率值以节省CPU功率。

公开(公告)号：US20130268787A1

公开(公告)日：2013-10-10

申请号：US13904461

申请日：2013-05-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： David Koo ,  Li Li

IPC: G06F1/32

CPC classification number: G06F1/324 ,  G06F1/3203 ,  G06F1/329 ,  G06F9/505 ,  G06F9/5083 ,  G06F9/5094 ,  Y02D10/126 ,  Y02D10/22 ,  Y02D10/24

Abstract: A method and apparatus are disclosed for conserving CPU power. The method includes: obtaining CPU occupation rates of all threads triggering frequency adjustment in each domain and domains those threads belong to; in a domain a thread triggering frequency adjustment belongs to, calculating a target CPU frequency to be adjusted to according to the CPU occupation rate of the thread triggering frequency adjustment; calculating a timer parameter according to the target CPU frequency and setting a CPU frequency value for the thread triggering frequency adjustment. CPU frequency values of threads in each domain are synchronized according to the CPU occupation rate of each thread trigging frequency adjustment in this disclosure, so as to synchronize the CPU frequency values in a multi-core system to conserve CPU power.

Abstract translation: 公开了一种用于节省CPU功率的方法和装置。 该方法包括：获取所有线程的CPU占用率，触发每个域中的频率调整以及这些线程所属的域; 在域中一个线程触发频率调整属于，根据线程触发频率调整的CPU占用率计算要调整的目标CPU频率; 根据目标CPU频率计算定时器参数，并设置线程触发频率调整的CPU频率值。 根据本公开中每个线程触发频率调整的CPU占用率，每个域中的线程的CPU频率值被同步，以便同步多核系统中的CPU频率值以节省CPU功率。