发明授权
US07281092B2 System and method of managing cache hierarchies with adaptive mechanisms
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用自适应机制管理缓存层次的系统和方法
- 专利标题: System and method of managing cache hierarchies with adaptive mechanisms
- 专利标题(中): 用自适应机制管理缓存层次的系统和方法
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申请号: US11143328申请日: 2005-06-02
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公开(公告)号: US07281092B2公开(公告)日: 2007-10-09
- 发明人: Ramakrishnan Rajamony , Hazim Shafi , William E. Speight , Lixin Zhang
- 申请人: Ramakrishnan Rajamony , Hazim Shafi , William E. Speight , Lixin Zhang
- 申请人地址: US NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: US NY Armonk
- 代理机构: Dillon & Yudell LLP
- 代理商 Casimer K. Salys
- 主分类号: G06F12/00
- IPC分类号: G06F12/00
摘要:
A system and method of managing cache hierarchies with adaptive mechanisms. A preferred embodiment of the present invention includes, in response to selecting a data block for eviction from a memory cache (the source cache) out of a collection of memory caches, examining a data structure to determine whether an entry exists that indicates that the data block has been evicted from the source memory cache, or another peer cache, to a slower cache or memory and subsequently retrieved from the slower cache or memory into the source memory cache or other peer cache. Also, a preferred embodiment of the present invention includes, in response to determining the entry exists in the data structure, selecting a peer memory cache out of the collection of memory caches at the same level in the hierarchy to receive the data block from the source memory cache upon eviction.
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