发明授权
US07174430B1 Bandwidth reduction technique using cache-to-cache transfer prediction in a snooping-based cache-coherent cluster of multiprocessing nodes
有权
在基于窥探的多处理节点的高速缓存一致性集群中使用高速缓存到高速缓存传输预测的带宽减少技术
- 专利标题： Bandwidth reduction technique using cache-to-cache transfer prediction in a snooping-based cache-coherent cluster of multiprocessing nodes
- 专利标题（中）： 在基于窥探的多处理节点的高速缓存一致性集群中使用高速缓存到高速缓存传输预测的带宽减少技术
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申请号： US10889953申请日： 2004-07-13
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公开(公告)号： US07174430B1公开(公告)日： 2007-02-06
- 发明人: Brian W. O'Krafka , Michael J. Koster
- 申请人： Brian W. O'Krafka , Michael J. Koster
- 申请人地址： US CA Santa Clara
- 专利权人： Sun Microsystems, Inc.
- 当前专利权人： Sun Microsystems, Inc.
- 当前专利权人地址： US CA Santa Clara
- 代理机构： Osha Liang LLP
- 主分类号： G06F12/00
- IPC分类号： G06F12/00
摘要：
A multiprocessing node in a snooping-based cache-coherent cluster of processing nodes maintains a cache-to-cache transfer prediction directory of addresses of data last transferred by cache-to-cache transfers. In response to a local cache miss, the multiprocessing node may use the cache-to-cache transfer prediction directory to predict a cache-to-cache transfer and issue a restricted broadcast for requested data that allows only cache memories in the cluster to return copies of the requested data to the requesting multiprocessing node, thereby reducing the consumption of bandwidth that would otherwise be consumed by having a home memory return a copy of the requested data in response to an unrestricted broadcast for requested data that allows cache memories and home memories in a cluster to return copies of the requested data to the requesting multiprocessing node.
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