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    Dynamically adjusted threshold for population of secondary cache
    2.
    发明授权
    Dynamically adjusted threshold for population of secondary cache 有权
    二级缓存人口的动态调整阈值

    公开(公告)号：US08972662B2

    公开(公告)日：2015-03-03

    申请号：US13457290

    申请日：2012-04-26

    申请人： Michael T. Benhase ,  Stephen L. Blinick ,  Evangelos S. Eleftheriou ,  Lokesh M. Gupta ,  Robert Haas ,  Xiao-Yu Hu ,  Ioannis Koltsidas ,  Roman A. Pletka

    发明人： Michael T. Benhase ,  Stephen L. Blinick ,  Evangelos S. Eleftheriou ,  Lokesh M. Gupta ,  Robert Haas ,  Xiao-Yu Hu ,  Ioannis Koltsidas ,  Roman A. Pletka

    IPC分类号： G06F12/08

    CPC分类号： G06F12/0888 ,  G06F12/0866 ,  G06F12/0897 ,  G06F2212/225

    摘要： The population of data to be inserted into secondary data storage cache is controlled by determining a heat metric of candidate data; adjusting a heat metric threshold; rejecting candidate data provided to the secondary data storage cache whose heat metric is less than the threshold; and admitting candidate data whose heat metric is equal to or greater than the heat metric threshold. The adjustment of the heat metric threshold is determined by comparing a reference metric related to hits of data most recently inserted into the secondary data storage cache, to a reference metric related to hits of data most recently evicted from the secondary data storage cache; if the most recently inserted reference metric is greater than the most recently evicted reference metric, decrementing the threshold; and if the most recently inserted reference metric is less than the most recently evicted reference metric, incrementing the threshold.

    摘要翻译： 通过确定候选数据的热度量来控制要插入到辅助数据存储高速缓存中的数据的总数; 调整热量度量阈值; 拒绝提供给热度量小于阈值的次数据存储高速缓存的候选数据; 并且允许其热度量等于或大于热度量阈值的候选数据。 通过将与最近插入次级数据存储高速缓存中的数据的命中相关的参考度量与与次级数据存储高速缓存最近被排出的数据的命中相关的参考度量进行比较来确定热度量阈值的调整; 如果最近插入的参考度量值大于最近被驱逐的参考度量，则递减阈值; 并且如果最近插入的参考度量小于最近驱逐的参考度量，则递增阈值。

    Write cache structure in a storage system
    8.
    发明授权
    Write cache structure in a storage system 有权
    在存储系统中写入缓存结构

    公开(公告)号：US08990502B2

    公开(公告)日：2015-03-24

    申请号：US13283967

    申请日：2011-10-28

    申请人： Ioannis Koltsidas ,  Roman Pletka

    发明人： Ioannis Koltsidas ,  Roman Pletka

    IPC分类号： G06F12/00 ,  G06F12/08

    CPC分类号： G06F12/0868 ,  G06F12/0897 ,  G06F2212/225 ,  G06F2212/262 ,  Y02D10/13

    摘要： A method of writing data units to a storage device. The data units are cached in a first level cache sorted by logical address. A group (Gj) of sorted data units is transferred from the first level cache to a second level cache embodied in a solid state memory device. Data units of multiple groups (Gj) are sorted in the second level cache by logical address. The sorted data units stemming from the multiple groups are written to the storage device.

    摘要翻译： 将数据单元写入存储装置的方法。 数据单元被缓存在按逻辑地址排序的第一级缓存中。 排序数据单元的组（Gj）从第一级高速缓存传送到实体在固态存储器件中的第二级缓存。 多组数据单元（Gj）通过逻辑地址在第二级高速缓存中排序。 来自多个组的分类数据单元被写入存储设备。