公开(公告)号：US20200379804A1

公开(公告)日：2020-12-03

申请号：US16882092

申请日：2020-05-22

Applicant: Apple Inc.

Inventor： Kushal Dalmia ,  Jeremy C. Andrus ,  Daniel A. Chimene ,  Nigel R. Gamble ,  James M. Magee ,  Daniel A. Steffen

IPC: G06F9/48 ,  G06F9/50

Abstract: Embodiments described herein provide multi-level scheduling for threads in a data processing system. One embodiment provides a data processing system comprising one or more processors, a computer-readable memory coupled to the one or more processors, the computer-readable memory to store instructions which, when executed by the one or more processors, configure the one or more processors to receive execution threads for execution on the one or more processors, map the execution threads into a first plurality of buckets based at least in part on a quality of service class of the execution threads, schedule the first plurality of buckets for execution using a first scheduling algorithm, schedule a second plurality thread groups within the first plurality of buckets for execution using a second scheduling algorithm, and schedule a third plurality of threads within the second plurality of thread groups using a third scheduling algorithm.

公开(公告)号：US20200082070A1

公开(公告)日：2020-03-12

申请号：US16664719

申请日：2019-10-25

Applicant: Apple Inc.

Inventor： Bernard J. Semeria ,  Devon S. Andrade ,  Jeremy C. Andrus ,  Ahmed Bougacha ,  Peter Cooper ,  Jacques Fortier ,  Louis G. Gerbarg ,  James H. Grosbach ,  Robert J. McCall ,  Daniel A. Steffen ,  Justin R. Unger

IPC: G06F21/44 ,  H04L9/32 ,  G06F15/78

Abstract: Embodiments described herein enable the interoperability between processes configured for pointer authentication and processes that are not configured for pointer authentication. Enabling the interoperability between such processes enables essential libraries, such as system libraries, to be compiled with pointer authentication, while enabling those libraries to still be used by processes that have not yet been compiled or configured to use pointer authentication.

公开(公告)号：US20200082069A1

公开(公告)日：2020-03-12

申请号：US16664714

申请日：2019-10-25

Applicant: Apple Inc.

Inventor： Bernard J. Semeria ,  Devon S. Andrade ,  Jeremy C. Andrus ,  Ahmed Bougacha ,  Peter Cooper ,  Jacques Fortier ,  Louis G. Gerbarg ,  James H. Grosbach ,  Robert J. McCall ,  Daniel A. Steffen ,  Justin R. Unger

IPC: G06F21/44 ,  H04L9/32 ,  G06F15/78

Abstract: Embodiments described herein enable the interoperability between processes configured for pointer authentication and processes that are not configured for pointer authentication. Enabling the interoperability between such processes enables essential libraries, such as system libraries, to be compiled with pointer authentication, while enabling those libraries to still be used by processes that have not yet been compiled or configured to use pointer authentication.

公开(公告)号：US09582326B2

公开(公告)日：2017-02-28

申请号：US14292687

申请日：2014-05-30

Applicant: Apple Inc.

Inventor： Daniel A. Steffen ,  Matthew W. Wright ,  Russell A. Blaine, Jr. ,  Daniel A. Chimene ,  Kevin J. Van Vechten ,  Thomas B. Duffy

IPC: G06F9/46 ,  G06F9/48

CPC classification number: G06F9/4893 ,  G06F9/4881 ,  G06F9/5038 ,  G06F2209/5021 ,  Y02D10/22

Abstract: In one embodiment, tasks executing on a data processing system can be associated with a Quality of Service (QoS) classification that is used to determine the priority values for multiple subsystems of the data processing system. The QoS classifications are propagated when tasks interact and the QoS classes are interpreted a multiple levels of the system to determine the priority values to set for the tasks. In one embodiment, one or more sensors coupled with the data processing system monitor a set of system conditions that are used in part to determine the priority values to set for a QoS class.

Abstract translation: 在一个实施例中，在数据处理系统上执行的任务可以与用于确定数据处理系统的多个子系统的优先级值的服务质量（QoS）分类相关联。 当任务交互并且QoS类被解释为系统的多个级别以确定为任务设置的优先级值时，QoS分类被传播。 在一个实施例中，与数据处理系统耦合的一个或多个传感器监视在一部分中用于确定为QoS类设置的优先级值的一组系统条件。