公开(公告)号：US20130332942A1

公开(公告)日：2013-12-12

申请号：US13650083

申请日：2012-10-11

Applicant: APPLE INC.

Inventor： Ananthakrishna Ramesh ,  Daniel E. Crosby ,  James Michael Magee ,  Lionel D. Desai ,  Matthew G. Watson ,  Neil G. Crane

IPC: G06F3/00 ,  G06F9/46

CPC classification number: G06F9/542 ,  G06F9/5016 ,  G06F2209/504 ,  G06F2209/508 ,  G06F2209/543 ,  Y02D10/22

Abstract: Systems, methods, and computer program products for target memory pressure event notifications are disclosed. Processes running on a device can register to receive memory pressure event notifications from a memory management system, which are sent while memory pages are being reclaimed. Active processes running on a device processor can be assigned a priority that ranges from low to high. Responsive to a memory pressure event occurring on the device, the memory management system determines whether less than a threshold number of high priority processes are active on the device. If so, the memory management system sends a memory pressure event notification to the registered process with the lowest priority among the active processes.

Abstract translation: 公开了用于目标存储器压力事件通知的系统，方法和计算机程序产品。 在设备上运行的进程可以注册以从存储器管理系统接收内存压力事件通知，这些内存管理系统在内存页面被回收时发送。 在设备处理器上运行的活动进程可以分配从低到高的优先级。 响应于在设备上发生的存储器压力事件，存储器管理系统确定在设备上是否有小于阈值数量的高优先级进程是活动的。 如果是这样，则内存管理系统向活动进程中具有最低优先级的注册进程发送内存压力事件通知。

公开(公告)号：US09170859B2

公开(公告)日：2015-10-27

申请号：US13650083

申请日：2012-10-11

Applicant: Apple Inc.

Inventor： Ananthakrishna Ramesh ,  Daniel E. Crosby ,  James Michael Magee ,  Lionel D. Desai ,  Matthew G. Watson ,  Neil G. Crane

IPC: G06F9/54 ,  G06F9/50

CPC classification number: G06F9/542 ,  G06F9/5016 ,  G06F2209/504 ,  G06F2209/508 ,  G06F2209/543 ,  Y02D10/22

Abstract: Systems, methods, and computer program products for target memory pressure event notifications are disclosed. Processes running on a device can register to receive memory pressure event notifications from a memory management system, which are sent while memory pages are being reclaimed. Active processes running on a device processor can be assigned a priority that ranges from low to high. Responsive to a memory pressure event occurring on the device, the memory management system determines whether less than a threshold number of high priority processes are active on the device. If so, the memory management system sends a memory pressure event notification to the registered process with the lowest priority among the active processes.

Abstract translation: 公开了用于目标存储器压力事件通知的系统，方法和计算机程序产品。 在设备上运行的进程可以注册以从存储器管理系统接收内存压力事件通知，这些内存管理系统在内存页面被回收时发送。 在设备处理器上运行的活动进程可以分配从低到高的优先级。 响应于在设备上发生的存储器压力事件，存储器管理系统确定在设备上是否有小于阈值数量的高优先级进程是活动的。 如果是这样，则内存管理系统向活动进程中具有最低优先级的注册进程发送内存压力事件通知。