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    • 37. 发明申请
    • System and method for virtualization of processor resources
    • 处理器资源虚拟化的系统和方法
    • US20060069878A1
    • 2006-03-30
    • US10955093
    • 2004-09-30
    • Maximino AguilarMichael DayMark NutterJames Xenidis
    • Maximino AguilarMichael DayMark NutterJames Xenidis
    • G06F12/08G06F12/00
    • G06F12/109G06F12/0284G06F12/1045
    • A system and method for virtualization of processor resources is presented. A thread is created on a processor and the processor's local memory is mapped into an effective address space. In doing so, the processor's local memory is accessible by other processors, regardless of whether the processor is running. Additional threads create additional local memory mappings into the effective address space. The effective address space corresponds to either a physical local memory or a “soft” copy area. When the processor is running, a different processor may access data that is located in the first processor's local memory from the processor's local storage area. When the processor is not running, a softcopy of the processor's local memory is stored in a memory location (i.e. locked cache memory, pinned system memory, virtual memory, etc.) for other processors to continue accessing.
    • 提出了一种用于处理器资源虚拟化的系统和方法。 在处理器上创建线程,并将处理器的本地内存映射到有效的地址空间。 这样做,处理器的本地内存可以由其他处理器访问,无论处理器是否正在运行。 附加线程会在有效地址空间中创建额外的本地内存映射。 有效地址空间对应于物理本地存储器或“软”复制区域。 当处理器运行时,不同的处理器可以从处理器的本地存储区域访问位于第一处理器的本地存储器中的数据。 当处理器未运行时,处理器的本地存储器的软拷贝存储在其他处理器的存储器位置(即锁定的高速缓冲存储器,固定的系统存储器,虚拟存储器等)中以继续访问。
    • 39. 发明申请
    • Light weight context switching technique
    • 轻量级上下文切换技术
    • US20060015876A1
    • 2006-01-19
    • US10891773
    • 2004-07-15
    • Michael DayMark Nutter
    • Michael DayMark Nutter
    • G06F9/46
    • G06F9/461G06F9/485
    • An apparatus, a method, and a computer program product are provided for more efficiently allowing context switching. Currently, context switching can be costly because of both memory requirements to store data from pre-empted applications, as well as the bus requirements to move the data at pre-emption. To alleviate at least some of the costs associated with context switching, addition fields, either with associated Application Program Interfaces (APIs) or coupled to application modules, can be employed to indicate points of light weight context during the operation of an application. Therefore, an operating system can pre-empt applications at points where the context is relatively light, reducing the costs on both storage and on bus usage.
    • 提供了一种用于更有效地允许上下文切换的装置,方法和计算机程序产品。 目前,上下文切换可能是昂贵的,因为存储器要求存储来自抢占应用的数据,以及总线要求以优先移动数据。 为了减轻与上下文切换相关联的至少一些成本,可以使用具有相关联的应用程序接口(API)或耦合到应用模块的附加字段来在应用的操作期间指示轻量级上下文的点。 因此,操作系统可以在上下文相对较轻的点预占应用程序,从而降低存储和总线使用的成本。