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    • 1. 发明授权
    • Semaphore in system I/O space
    • 系统I / O空间中的信号量
    • US6134579A
    • 2000-10-17
    • US911842
    • 1997-08-15
    • Siamak TavallaeiJeffrey S. Autor
    • Siamak TavallaeiJeffrey S. Autor
    • G06F15/177G06F9/46G06F13/362G06F9/00
    • G06F9/52G06F2209/503
    • A computer system utilizing multiple processes includes a semaphore for controlling exclusive access of a single process to a selected resource. The semaphore is implemented in the system input/output and controlled, at least in part, by an application specific integrated circuit (ASIC). When a process is attempting to acquire an I/O resource, a read is sent to the semaphore. If the resource is available the semaphore will have a first value, and the semaphore will return that first value to the process indicating that the process has acquired the resource. The ASIC will then change the semaphore value to a second value. If the resource is not available the semaphore will have the second value, and the semaphore will return the second value to the process indicating that the resource is not available.
    • 利用多个进程的计算机系统包括用于控制单个进程对所选资源的独占访问的信号量。 信号量在系统输入/输出中实现,至少部分地由专用集成电路(ASIC)控制。 当进程尝试获取I / O资源时,会将读取信息发送到信号量。 如果资源可用,则信号量将具有第一个值,并且信号量将返回该指示进程已获取资源的进程的第一个值。 然后,ASIC将信号量值更改为第二个值。 如果资源不可用,则信号量将具有第二个值,并且信号量将将第二个值返回给指示资源不可用的进程。
    • 10. 发明授权
    • Method and apparatus for identification of features associated with
computers
    • 用于识别与计算机相关的特征的方法和装置
    • US5964875A
    • 1999-10-12
    • US921968
    • 1997-09-02
    • Jeffrey S. AutorGregory T. NorenJohn S. Lacombe
    • Jeffrey S. AutorGregory T. NorenJohn S. Lacombe
    • G06F11/22G06F9/06
    • G06F11/2289
    • Improved techniques for facilitating identification of a computer system's hardware features to software executing on the computer system are disclosed. In one embodiment, the software is system management software that serves to monitor and control the computer system to reduce failures and/or improve performance. In a general sense, the invention provides a system feature table within a computer system to describe each of the hardware features of the computer system, including feature data and appropriate access mechanisms for additional information. In addition, a user can be notified when the software does not support all the hardware features of the computer system. The invention also is able to identify locations of failing hardware features for easy replacement or examination.
    • 公开了用于便于将计算机系统的硬件特征识别到在计算机系统上执行的软件的改进的技术。 在一个实施例中,软件是用于监视和控制计算机系统以减少故障和/或改善性能的系统管理软件。 在一般意义上,本发明提供计算机系统内的系统特征表,以描述计算机系统的每个硬件特征,包括特征数据和用于附加信息的适当的访问机制。 此外,当软件不支持计算机系统的所有硬件特征时,可以通知用户。 本发明还能够识别故障硬件特征的位置,以便于更换或检查。