ACCESSING A LOCAL STORAGE DEVICE USING AN AUXILIARY PROCESSOR
    3.
    发明申请
    ACCESSING A LOCAL STORAGE DEVICE USING AN AUXILIARY PROCESSOR 审中-公开
    使用辅助处理器访问本地存储设备

    公开(公告)号:US20130111249A1

    公开(公告)日:2013-05-02

    申请号:US13810187

    申请日:2010-07-21

    IPC分类号: G06F1/32

    摘要: The present disclosure includes accessing a local storage device using an auxiliary processor An example computing device (100, 202, 303) includes a local storage device (110, 210, 310), a first processor (112, 212, 312) able to access the local storage device (110, 210, 310), an auxiliary processor (114, 220, 360) able to access the local storage device (110, 210, 310) while the first processor (112, 212, 312) is shut down, wherein the auxiliary processor (114, 220, 360) uses less power than the first processor (112, 212, 312), and a management agent (125, 225, 370) to initiate an accessing of the local storage device (110, 210, 310) by the auxiliary processor (114, 220, 360) if a load associated with the computing device (100, 202, 303) falls below a particular threshold. One of the first processor (112, 212, 312) and the auxiliary processor (114, 220, 360) is able to access the local storage device (110, 210, 310) at a time.

    摘要翻译: 本公开包括使用辅助处理器访问本地存储设备示例性计算设备(100,202,303)包括本地存储设备(110,210,310),能够访问的第一处理器(112,212,312) 本地存储设备(110,210,310),当第一处理器(112,212,312)被关闭时能够访问本地存储设备(110,210,310)的辅助处理器(114,220,360) ,其中所述辅助处理器(114,220,360)使用比所述第一处理器(112,212,312)更少的功率,以及管理代理(125,225,370)来启动所述本地存储设备 如果与计算设备(100,202,303)相关联的负载下降到特定阈值以下,则由辅助处理器(114,220,360)分配。 第一处理器(112,212,312)和辅助处理器(114,220,360)中的一个能够一次访问本地存储设备(110,210,310)。

    Database join optimized for flash storage
    7.
    发明授权
    Database join optimized for flash storage 有权
    针对闪存存储优化数据库连接

    公开(公告)号:US09176860B2

    公开(公告)日:2015-11-03

    申请号:US12370551

    申请日:2009-02-12

    IPC分类号: G06F12/00 G06F12/02 G06F17/30

    摘要: Computer-implemented systems and associated operating methods implement a fast join for databases which is adapted for usage with flash storage. A system comprises a processor that performs a join of two tables stored in a storage in pages processed in a column orientation wherein column values for all rows on a page are co-located in mini-pages within the page. The processor reduces input/output operations of the join by accessing only join columns and mini-pages containing join results.

    摘要翻译: 计算机实现的系统和相关的操作方法为适用于闪存存储的数据库实现快速连接。 一种系统包括一个处理器,该处理器执行存储在一个列方向处理的页面中的存储在存储器中的两个表的连接,其中页面上所有行的列值共同位于该页内的小页面中。 处理器通过仅访问连接列和包含连接结果的小页面来减少连接的输入/输出操作。

    VALIDATION OF DISTRIBUTED BALANCED TREES
    9.
    发明申请
    VALIDATION OF DISTRIBUTED BALANCED TREES 有权
    分布平衡条的验证

    公开(公告)号:US20130238576A1

    公开(公告)日:2013-09-12

    申请号:US13416603

    申请日:2012-03-09

    IPC分类号: G06F7/00

    CPC分类号: G06F17/30961

    摘要: A distributed balanced tree having a plurality of nodes distributed across a plurality of servers is accessed. Version information associated with a node of the distributed balanced tree is retrieved. Validity of a lookup transaction performed on the balanced tree is determined by verifying a version value of only the leaf node accessed during the lookup operation against the retrieved version information.

    摘要翻译: 访问分布在多个服务器上的多个节点的分布式平衡树被访问。 检索与分布式平衡树的节点相关联的版本信息。 在平衡树上执行的查找事务的有效性是通过仅针对检索到的版本信息检查在查找操作期间访问的叶节点的版本值来确定的。