发明授权
- 专利标题： Efficient multiple-table reference prediction mechanism
- 专利标题（中）： 高效多表参考预测机制
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申请号： US11457178申请日： 2006-07-13
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公开(公告)号： US07657729B2公开(公告)日： 2010-02-02
- 发明人: Wael R. El-Essawy , Ramakrishnan Rajamony , Hazim Shafi , William E. Speight , Lixin Zhang
- 申请人： Wael R. El-Essawy , 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
- 主分类号： G06F9/00
- IPC分类号： G06F9/00
摘要：
A method and an apparatus for enabling a prefetch engine to detect and support hardware prefetching with different streams in received accesses. Multiple (simple) history tables are provided within (or associated with) the prefetch engine. Each of the multiple tables is utilized to detect different access patterns. The tables are indexed by different parts of the address and are accessed in a preset order to reduce the interference between different patterns. When an address does not fit the patterns of a first table, the address is passed to the next table to be checked for a match of different patterns. In this manner, different patterns may be detected at different tables within a single prefetch engine.
公开/授权文献
- US20080016330A1 Efficient Multiple-Table Reference Prediction Mechanism 公开/授权日：2008-01-17
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