公开(公告)号：WO2016164155A1

公开(公告)日：2016-10-13

申请号：PCT/US2016/022987

申请日：2016-03-17

Applicant: APPLE INC.

Inventor： MYRICK, Andrew D. ,  DESAI, Lionel ,  ANDRUS, Jeremy ,  CRIPPES, Karen ,  AURICCHIO, Joseph

IPC: G06F9/455 ,  G06F12/02 ,  G06F9/48 ,  G06F9/50

CPC classification number: G06F12/0246 ,  G06F9/44526 ,  G06F9/4843 ,  G06F9/5022 ,  G06F12/0223 ,  G06F12/0253 ,  G06F12/0638 ,  G06F2212/205 ,  G06F2212/7201 ,  G11C7/1072

Abstract: One or more memory coalitions of software processes are created and used to decide whether to perform memory reduction operations on a data processing system. One method in one embodiment includes adding a newly launched second process to an existing memory coalition in response to determining that the second process should be part of a memory coalition that includes a first process. In response to determining that available system memory (e.g. DRAM) is low, the system determines which memory coalition of foreground applications uses the most amount of system memory and then performs one or more memory reduction operations on that memory coalition in order to make more system memory available to other processes.

Abstract translation: 创建一个或多个软件过程的内存联盟，并用于决定是否对数据处理系统执行内存缩减操作。 响应于确定第二进程应该是包括第一进程的存储器联盟的一部分，将一个新启动的第二进程添加到现有存储器联盟中的一种方法。 响应于确定可用的系统存储器（例如DRAM）为低，系统确定前台应用的哪个存储器联盟使用最多的系统存储器，然后对该存储器联盟执行一个或多个存储器缩减操作，以便制造更多的系统 内存可用于其他进程。

公开(公告)号：WO2018222673A1

公开(公告)日：2018-12-06

申请号：PCT/US2018/035067

申请日：2018-05-30

Applicant: APPLE INC.

Inventor： MARTEL, Pierre-Olivier J. ,  WILCOX, Jeffrey R. ,  SHAEFFFER, Ian P. ,  MYRICK, Andrew D. ,  HILL, Robert W. ,  SCHAAP, Tristan F.

IPC: G06F21/57 ,  G06F21/71 ,  H04L29/06 ,  G06F1/32 ,  G06F21/62 ,  H01L23/00

CPC classification number: G06F21/76 ,  G06F1/3237 ,  G06F1/3287 ,  G06F21/57 ,  G06F21/62 ,  G06F21/71 ,  G06F21/74 ,  G06F21/81 ,  G06F2221/2111 ,  G06F2221/2141 ,  G06F2221/2151 ,  H04L63/0861 ,  H04L63/107 ,  H04L63/108

Abstract: Techniques are disclosed in which a secure circuit controls a gating circuit to enable or disable other circuity of a device (e.g., one or more input sensors). For example, the gating circuit may be a power gating circuit and the secure circuit may be configured to disable power to an input sensor in certain situations. As another example, the gating circuit may be a clock gating circuit and the secure circuit may be configured to disable the clock to an input sensor. As yet another example, the gating circuit may be configured to gate a control bus and the secure circuit may be configured to disable control signals to an input sensor. In some embodiments, hardware resources included in or controlled by the secure circuit are not accessible by other elements of the device, other than by sending requests to a predetermined set of memory locations (e.g., a secure mailbox).

公开(公告)号：WO2016195793A1

公开(公告)日：2016-12-08

申请号：PCT/US2016/025054

申请日：2016-03-30

Applicant: APPLE INC.

Inventor： MYRICK, Andrew D. ,  CHAN, David M. ,  REEVES, Jonathan R. ,  CURLESS, Jeffrey D. ,  DESAI, Lionel D. ,  MCILREE, James C. ,  CRIPPES, Karen A. ,  EQBAL, Rasha

IPC: G06F9/44 ,  G06F9/48 ,  G06F9/50 ,  G06F11/14

CPC classification number: G06F9/4406 ,  G06F3/0608 ,  G06F3/0653 ,  G06F3/0673 ,  G06F9/4401 ,  G06F9/442 ,  G06F9/485 ,  G06F9/5016 ,  G06F11/1438

Abstract: Techniques for memory management of a data processing system are described herein. According to one embodiment, a memory usage monitor executed by a processor of a data processing system monitors memory usages of groups of programs running within a memory of the data processing system. In response to determining that a first memory usage of a first group of the programs exceeds a first predetermined threshold, a user level reboot is performed in which one or more applications running within a user space of an operating system of the data processing system are terminated and relaunched. In response to determining that a second memory usage of a second group of the programs exceeds a second predetermined threshold, a system level reboot is performed in which one or more system components running within a kernel space of the operating system are terminated and relaunched.

Abstract translation: 本文描述了用于数据处理系统的存储器管理的技术。 根据一个实施例，由数据处理系统的处理器执行的存储器使用监视器监视在数据处理系统的存储器内运行的程序组的存储器使用。 响应于确定第一组程序的第一存储器使用超过第一预定阈值，执行用户级别重新启动，其中在数据处理系统的操作系统的用户空间内运行的一个或多个应用程序被终止 并重新启动。 响应于确定第二组程序的第二存储器使用超过第二预定阈值，执行系统级别重新启动，其中在操作系统的内核空间内运行的一个或多个系统组件被终止并重新启动。