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Method and system for managing shared memory

A technology for sharing memory and data processing systems, applied in memory systems, instruments, electrical digital data processing, etc.

Inactive Publication Date: 2015-06-03
INT BUSINESS MASCH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, conventional SHMAT is limited to operating within the context of a single OS

Method used

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  • Method and system for managing shared memory
  • Method and system for managing shared memory
  • Method and system for managing shared memory

Examples

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Embodiment Construction

[0019] The illustrative embodiments provide a method, data processing system, and computer program product (implemented on a computer readable storage device) for performing Cross Partition Shared Memory Attachment (XSHMAT).

[0020] In the following detailed description of exemplary embodiments of the invention, specific exemplary embodiments in which the invention may be practiced are described in sufficient detail to enable those skilled in the art to practice the invention, and it is to be understood that other embodiments may be used, And logical, architectural, programming, mechanical, electrical and other changes may be made without departing from the spirit or scope of the invention. The following detailed description should therefore not be taken in a limiting sense, and the scope of the invention is defined by the appended claims and their equivalents.

[0021] It should be understood that the use of specific component, device and / or parameter names are examples only...

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Abstract

A technique for managing shared memory includes linking address translation data structures used by first and second sharing applications. The first sharing application is managed by a first operating system (OS) and the second sharing application is managed by a second OS that hosts an associated virtual object. Virtual addresses of the first and second sharing applications are bound, based on the linking, to a changeable set of physical addresses that the second OS assigns to the associated virtual object such that the associated virtual object, which is shared by the sharing applications, is pageable by the second OS without permission of the first OS.

Description

technical field [0001] The present disclosure relates generally to data processing environments, and more particularly, to a cross-partition shared memory attach for a data processing environment. Background technique [0002] When a process (which has its own address space and unique user space) needs to communicate with another process (which has its own address space and unique user space), the process can send a request to the kernel to allocate a A memory space for inter-process communication (IPC). A process can also communicate with another process via files that are accessible to both processes. However, requiring a process to open and read / write a file to communicate with another process typically requires multiple input / output (I / O) operations that may consume an undesirable amount of time. [0003] exist In , there are also various IPCs that allow processes to communicate with other processes in the same data processing system or in different data processing s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/02
CPCG06F12/1036
Inventor R·L.·阿恩迪特
Owner INT BUSINESS MASCH CORP