公开(公告)号：US09058277B2

公开(公告)日：2015-06-16

申请号：US13671801

申请日：2012-11-08

Applicant: ADVANCED MICRO DEVICES, INC.

Inventor： Sharad Dilip Bade ,  Alok Garg ,  John Kalamatianos ,  Paul Keltcher ,  Marius Evers ,  Chitresh Narasimhaiah

IPC: G06F12/08 ,  G06F9/38

CPC classification number: G06F12/0862 ,  G06F9/3842 ,  G06F11/30 ,  G06F2212/6024 ,  G06F2212/6026 ,  Y02D10/13

Abstract: Methods and systems for prefetching data for a processor are provided. A system is configured for and a method includes selecting one of a first prefetching control logic and a second prefetching control logic of the processor as a candidate feature, capturing the performance metric of the processor over an inactive sample period when the candidate feature is inactive, capturing a performance metric of the processor over an active sample period when the candidate feature is active, comparing the performance metric of the processor for the active and inactive sample periods, and setting a status of the candidate feature as enabled when the performance metric in the active period indicates improvement over the performance metric in the inactive period, and as disabled when the performance metric in the inactive period indicates improvement over the performance metric in the active period.

Abstract translation: 提供了用于为处理器预取数据的方法和系统。 系统被配置用于并且方法包括选择处理器的第一预取控制逻辑和第二预取控制逻辑之一作为候选特征，当候选特征不活动时，在非活动采样周期捕获处理器的性能度量， 当候选特征处于活动状态时，在活动采样周期捕获处理器的性能度量，比较处于活动和非活动采样周期的处理器的性能度量，并且将候选特征的状态设置为使能时的性能度量 活动期间表示在非活动期间的性能指标改善，当非活动期间的性能指标表示改善了活动期间的绩效指标时被禁用。

公开(公告)号：US20140129780A1

公开(公告)日：2014-05-08

申请号：US13671801

申请日：2012-11-08

Applicant: ADVANCED MICRO DEVICES, INC.

Inventor： Sharad Dilip Bade ,  Alok Garg ,  John Kalamatianos ,  Paul Keltcher ,  Marius Evers ,  Chitresh Narasimhaiah

IPC: G06F12/08

CPC classification number: G06F12/0862 ,  G06F9/3842 ,  G06F11/30 ,  G06F2212/6024 ,  G06F2212/6026 ,  Y02D10/13

Abstract: Methods and systems for prefetching data for a processor are provided. A system is configured for and a method includes selecting one of a first prefetching control logic and a second prefetching control logic of the processor as a candidate feature, capturing the performance metric of the processor over an inactive sample period when the candidate feature is inactive, capturing a performance metric of the processor over an active sample period when the candidate feature is active, comparing the performance metric of the processor for the active and inactive sample periods, and setting a status of the candidate feature as enabled when the performance metric in the active period indicates improvement over the performance metric in the inactive period, and as disabled when the performance metric in the inactive period indicates improvement over the performance metric in the active period.

Abstract translation: 提供了用于为处理器预取数据的方法和系统。 系统被配置用于并且方法包括选择处理器的第一预取控制逻辑和第二预取控制逻辑之一作为候选特征，当候选特征不活动时，在非活动采样周期捕获处理器的性能度量， 当候选特征处于活动状态时，在活动采样周期捕获处理器的性能度量，比较处于活动和非活动采样周期的处理器的性能度量，并且将候选特征的状态设置为使能时的性能度量 活动期间表示在非活动期间的性能指标改善，当非活动期间的性能指标表示改善了活动期间的绩效指标时被禁用。