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    • 1. 发明授权
    • Method and device for multithread to access multiple copies
    • 用于多线程访问多个副本的方法和设备
    • US08880813B2
    • 2014-11-04
    • US13339230
    • 2011-12-28
    • Wei WangYiyang LiuXiaofeng Zhang
    • Wei WangYiyang LiuXiaofeng Zhang
    • G06F5/08G06F12/10
    • G06F12/1009G06F2212/2542
    • A method and a device for multithread to access multiple copies. The method includes: when multiple threads of a process are distributed to different nodes, creating a thread page directory table whose content is the same as that of a process page directory table of the process, where each thread page directory table includes a special entry which points to specific data and a common entry other than the special entry, each thread corresponds to a thread page directory table, and the specific data is data with multiple copies at different nodes; and when each thread is scheduled and the special entry in the thread page directory table of the each thread does not point to the specific data stored in a node where the thread is located, modifying, based on a physical address of the specific data, the special entry to point to the specific data.
    • 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进程页目录表的内容相同的线程页目录表,其中每个线程页目录表包括特殊条目, 指向特定数据和除特殊条目以外的通用条目,每个线程对应于线程页目录表,具体数据是不同节点上具有多个副本的数据; 并且当每个线程被调度并且每个线程的线程页目录表中的特殊条目不指向存储在线程所在节点中的特定数据时,基于特定数据的物理地址来修改 特别输入指向具体数据。
    • 2. 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
    • US20120297149A1
    • 2012-11-22
    • US13339230
    • 2011-12-28
    • Wei WangYiyang LiuXiaofeng Zhang
    • Wei WangYiyang LiuXiaofeng Zhang
    • G06F12/00
    • G06F12/1009G06F2212/2542
    • A method and a device for multithread to access multiple copies. The method includes: when multiple threads of a process are distributed to different nodes, creating a thread page directory table whose content is the same as that of a process page directory table of the process, where each thread page directory table includes a special entry which points to specific data and a common entry other than the special entry, each thread corresponds to a thread page directory table, and the specific data is data with multiple copies at different nodes; and when each thread is scheduled and the special entry in the thread page directory table of the each thread does not point to the specific data stored in a node where the thread is located, modifying, based on a physical address of the specific data, the special entry to point to the specific data.
    • 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进程页目录表的内容相同的线程页目录表,其中每个线程页目录表包括特殊条目, 指向特定数据和除特殊条目以外的通用条目,每个线程对应于线程页目录表,具体数据是不同节点上具有多个副本的数据; 并且当每个线程被调度并且每个线程的线程页目录表中的特殊条目不指向存储在线程所在节点中的特定数据时,基于特定数据的物理地址来修改 特别输入指向具体数据。
    • 3. 发明申请
    • DATA ACCESS PROCESSING METHOD AND APPARATUS
    • 数据访问处理方法和装置
    • US20120272022A1
    • 2012-10-25
    • US13340170
    • 2011-12-29
    • Wei WangXiaofeng Zhang
    • Wei WangXiaofeng Zhang
    • G06F12/16
    • G06F9/545G06F12/1009H04L29/06
    • A data access processing method and apparatus, the method comprising: copying a kernel code and a global descriptor table on a memory of each of nodes respectively (101); making base addresses of kernel code segments on the respective nodes in the global descriptor table respectively point to linear addresses of the kernel code corresponding to the respective nodes based on a virtual address of the kernel code (102); and recording a mapping relation between the linear addresses of the kernel code corresponding to the respective nodes and physical addresses of the respective nodes in a kernel page table respectively, to enable a process to access the kernel code locally in the respective nodes (103). The apparatus comprises a copying module (401), a modifying module (402) and a recording module (403).
    • 一种数据访问处理方法和装置,所述方法包括:分别在每个节点的存储器上复制内核代码和全局描述符表(101); 基于所述内核代码(102)的虚拟地址,使所述全局描述符表中相应节点上的内核代码段的基址分别指向与所述各个节点相对应的所述内核代码的线性地址; 以及分别在内核页表中记录对应于各个节点的内核代码的线性地址和各个节点的物理地址之间的映射关系,以使得进程能够在各个节点(103)中本地访问内核代码。 该装置包括复制模块(401),修改模块(402)和记录模块(403)。
    • 4. 发明授权
    • Data access processing method and apparatus
    • 数据访问处理方法和装置
    • US08862857B2
    • 2014-10-14
    • US13340170
    • 2011-12-29
    • Wei WangXiaofeng Zhang
    • Wei WangXiaofeng Zhang
    • G06F12/02G06F9/54G06F12/10H04L29/06
    • G06F9/545G06F12/1009H04L29/06
    • A data access processing method and apparatus, the method comprising: copying a kernel code and a global descriptor table on a memory of each of nodes respectively (101); making base addresses of kernel code segments on the respective nodes in the global descriptor table respectively point to linear addresses of the kernel code corresponding to the respective nodes based on a virtual address of the kernel code (102); and recording a mapping relation between the linear addresses of the kernel code corresponding to the respective nodes and physical addresses of the respective nodes in a kernel page table respectively, to enable a process to access the kernel code locally in the respective nodes (103). The apparatus comprises a copying module (401), a modifying module (402) and a recording module (403).
    • 一种数据访问处理方法和装置,所述方法包括:分别在每个节点的存储器上复制内核代码和全局描述符表(101); 基于所述内核代码(102)的虚拟地址,使所述全局描述符表中相应节点上的内核代码段的基址分别指向与所述各个节点相对应的所述内核代码的线性地址; 以及分别在内核页表中记录对应于各个节点的内核代码的线性地址和各个节点的物理地址之间的映射关系,以使得进程能够在各个节点(103)中本地访问内核代码。 该装置包括复制模块(401),修改模块(402)和记录模块(403)。
    • 9. 发明授权
    • Memory access monitoring method and device
    • 内存访问监控方法和设备
    • US08713275B2
    • 2014-04-29
    • US13341416
    • 2011-12-30
    • Xiaofeng ZhangFan Fang
    • Xiaofeng ZhangFan Fang
    • G06F13/00
    • G06F12/0284G06F11/3466G06F12/122G06F2201/88G06F2201/885G06F2212/2542
    • A memory access monitoring method and a memory access monitoring method device are disclosed, The method comprises: performing coarse grain monitoring on local memory pages, if a hot page with coarse grain monitoring exists in the local memory pages, requesting an operating system to perform an optimized migration for the content of the hot page, and if a half hot page with coarse grain monitoring exists in the local memory pages, initiating fine grain monitoring to the half hot page; and performing fine grain monitoring on the half hot page, if a hot area with fine grain monitoring exists in the half hot page, requesting the operating system to perform an optimized migration for the content of the hot area.
    • 公开了一种存储器访问监视方法和存储器访问监视方法装置。该方法包括:对本地存储器页面进行粗粒度监视,如果在本地存储器页面中存在粗粒度监视的热页面,请求操作系统执行 优化了热页面内容的迁移,如果在本地内存页面中存在粗粒度监控的半热页面,则在半热页面上启动细粒度监控; 并在半热页面进行细粒度监控,如果在半热页面中存在具有细粒度监视的热区域,请求操作系统对热区域的内容进行优化迁移。