Preventing cache floods from sequential streams
    2.
    发明授权
    Preventing cache floods from sequential streams 失效
    防止连续流中的缓存洪泛

    公开(公告)号:US06823428B2

    公开(公告)日:2004-11-23

    申请号:US10150172

    申请日:2002-05-17

    IPC分类号: G06F1200

    摘要: A method that avoids cache flooding when handling sequential I/O request streams in storage subsystem caches. Both on-demand and prefetched data are addressed. A mechanism is provided that makes the blocks read from the disk array, that are part of a sequential I/O request stream, minimize the evictions of potentially useful data blocks from the cache, thus avoiding the flooding of the cache by stale data.

    摘要翻译: 一种在存储子系统缓存中处理顺序I / O请求流时避免高速缓存溢出的方法。 解决了按需和预取数据。 提供了一种机制,其使得从作为顺序I / O请求流的一部分的磁盘阵列读取的块最小化从高速缓存释放可能有用的数据块,从而避免了由陈旧数据引起的高速缓存洪泛。