公开(公告)号：US20150169384A1

公开(公告)日：2015-06-18

申请号：US14635790

申请日：2015-03-02

Applicant: Intel Corporation

Inventor： Suresh Srinivas ,  Stephen H. Dohrmann ,  Mingqiu Sun ,  Uma Srinivasan ,  Ravi Rajwar ,  Konrad K. Lai

IPC: G06F9/52

CPC classification number: G06F9/528 ,  G06F8/458 ,  G06F9/3842 ,  G06F9/45516 ,  G06F9/526 ,  G06F17/30168 ,  G06F17/30362 ,  Y10S707/99938

Abstract: Example methods and apparatus to manage object locks are disclosed. A disclosed example method includes intercepting a processor request to apply the lock on the object, identifying a performance history of the object based on a number of instances of contention, reducing computing resources of the processor by, when the number of instances is below a threshold value, generating a lock bypass for the object to cause speculative execution of target code within the object, and preventing speculative execution by applying the lock on the object when the number of instances is above the threshold value.

Abstract translation: 公开了用于管理对象锁的示例性方法和装置。 所公开的示例性方法包括拦截处理器请求以对对象施加锁定，基于竞争的多个实例来识别对象的性能历史，当实例数低于阈值时，减少处理器的计算资源 产生对象的锁旁路，以引起对象内的目标代码的推测执行，并且当实例数高于阈值时，通过对对象应用锁来防止推测执行。

公开(公告)号：US09529645B2

公开(公告)日：2016-12-27

申请号：US14635790

申请日：2015-03-02

Applicant: Intel Corporation

Inventor： Suresh Srinivas ,  Stephen H. Dohrmann ,  Mingqiu Sun ,  Uma Srinivasan ,  Ravi Rajwar ,  Konrad K. Lai

IPC: G06F9/52 ,  G06F9/455 ,  G06F17/30 ,  G06F9/38 ,  G06F9/45

CPC classification number: G06F9/528 ,  G06F8/458 ,  G06F9/3842 ,  G06F9/45516 ,  G06F9/526 ,  G06F17/30168 ,  G06F17/30362 ,  Y10S707/99938

Abstract: Example methods and apparatus to manage object locks are disclosed. A disclosed example method includes intercepting a processor request to apply the lock on the object, identifying a performance history of the object based on a number of instances of contention, reducing computing resources of the processor by, when the number of instances is below a threshold value, generating a lock bypass for the object to cause speculative execution of target code within the object, and preventing speculative execution by applying the lock on the object when the number of instances is above the threshold value.

Abstract translation: 公开了用于管理对象锁的示例性方法和装置。 所公开的示例性方法包括拦截处理器请求以对对象施加锁定，基于竞争的多个实例来识别对象的性能历史，当实例数低于阈值时，减少处理器的计算资源 产生对象的锁旁路，以引起对象内的目标代码的推测执行，并且当实例数高于阈值时，通过对对象应用锁来防止推测执行。