发明授权
- 专利标题: Multiway associative external microprocessor cache
- 专利标题(中): 多路关联外部微处理器缓存
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申请号: US873785申请日: 1997-06-12
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公开(公告)号: US5909694A公开(公告)日: 1999-06-01
- 发明人: Steven Lee Gregor , Thomas Leo Jeremiah
- 申请人: Steven Lee Gregor , Thomas Leo Jeremiah
- 申请人地址: 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: NY Armonk
- 主分类号: G06F12/08
- IPC分类号: G06F12/08 ; G06F13/14
摘要:
A cache system provides for accessing set associative caches with no increase in critical path delay, for reducing the latency penalty for cache accesses, for reducing snoop busy time, and for responding to MRU misses and cache misses. A multiway cache includes a single array partitioned into a plurality of cache slots and a directory, both directory and cache slots connected to the same data bus. A first cache slot is selected and accessed; and then corresponding data is accessed from alternate slots while searching said directory, thereby reducing the latency penalty for cache access.
公开/授权文献
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