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    • 1. 发明申请
    • METHOD AND DEVICE FOR MULTITHREAD TO ACCESS MULTIPLE COPIES
    • 用于多媒体访问多个复制的方法和设备
    • WO2011127862A3
    • 2012-04-26
    • PCT/CN2011074384
    • 2011-05-20
    • HUAWEI TECH CO LTDWANG WEILIU YIYANGZHANG XIAOFENG
    • WANG WEILIU YIYANGZHANG XIAOFENG
    • G06F9/46
    • G06F12/1009G06F2212/2542
    • A method and a device for multithread to access multiple copies are provided. The method comprises: when multiple threads of a process are distributed to different nodes, a thread page directory table whose content is the same as that of a process page directory table of processes is created, and each thread page directory table comprises special entries for pointing to specific data and common entries except the special entries, in which each thread corresponds to a thread page directory table, the execution of each thread is based on the corresponding thread page directory table, and the specific data is the data with multiple copies at different nodes; for each thread, when each thread is dispatched and the special entries in the thread page directory table of the thread does not point to the specific data stored in the node where the thread exists, the special entries are modified to point to the specific data based on the physical addresses of the specific data. Based on the solution mentioned above, the threads distributed to different nodes can be enabled to access the data copy stored in the node where the thread exists, thus the system performance is improved.
    • 提供了一种用于多线程访问多个副本的方法和设备。 该方法包括:当进程的多个线程被分发到不同的节点时,创建其内容与进程的页面目录表的内容相同的线程页目录表,并且每个线程页目录表包括用于指向的特殊条目 特定数据和常用条目除特殊条目外,其中每个线程对应于一个线程页目录表,每个线程的执行基于相应的线程页目录表,具体数据是具有不同副本的数据 节点; 对于每个线程,当每个线程被分派并且线程的线程页目录表中的特殊条目不指向存储在线程存在的节点中的特定数据时,特殊条目被修改以指向特定的数据 关于具体数据的物理地址。 基于上述解决方案,可以使分配给不同节点的线程能够访问存在于存在线程的节点中的数据副本,从而提高系统性能。