发明申请
US20080133839A1 STRATEGIES FOR READING INFORMATION FROM A MASS STORAGE MEDIUM USING A CACHE MEMORY
失效
使用高速缓存存储器从大容量存储介质读取信息的策略
- 专利标题: STRATEGIES FOR READING INFORMATION FROM A MASS STORAGE MEDIUM USING A CACHE MEMORY
- 专利标题(中): 使用高速缓存存储器从大容量存储介质读取信息的策略
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申请号: US12029304申请日: 2008-02-11
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公开(公告)号: US20080133839A1公开(公告)日: 2008-06-05
- 发明人: Brian L. Schmidt , Jonathan E. Lange , Timothy R. Osborne
- 申请人: Brian L. Schmidt , Jonathan E. Lange , Timothy R. Osborne
- 申请人地址: US WA Redmond
- 专利权人: Microsoft Corporation
- 当前专利权人: Microsoft Corporation
- 当前专利权人地址: US WA Redmond
- 主分类号: G06F12/08
- IPC分类号: G06F12/08
摘要:
Cache management strategies are described for retrieving information from a storage medium, such as an optical disc, using a cache memory including multiple cache segments. A first group of cache segments can be devoted to handling the streaming transfer of a first type of information, and a second group of cache segments can be devoted to handling the bulk transfer of a second type of information. A host system can provide hinting information that identifies which group of cache segments that a particular read request targets. A circular wrap-around fill strategy can be used to iteratively supply new information to the cache segments upon cache hits by performing pre-fetching. Various eviction algorithms can be used to select a cache segment for flushing and refilling upon a cache miss, such as a least recently used (LRU) algorithm or a least frequently used (LFU) algorithm.
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