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Non-coherent read in a strongly consistent cache system for frequently read but rarely updated data
Non-coherent read in a strongly consistent cache system for frequently read but rarely updated data
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机译:在高度一致的缓存系统中进行非一致性读取,用于频繁读取但很少更新的数据
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摘要
A technique relates to enabling a multiprocessor computer system to make a non-coherent request for a cache line. A first processor core sends a non-coherent fetch to a cache. In response to a second processor core having exclusive ownership of the cache line in the cache, the first processor core receives a stale copy of the cache line in the cache based on the non-coherent fetch. The non-coherent fetch is configured to obtain the stale copy for a predefined use. Cache coherency is maintained for the cache, such that the second processor core continues to have exclusive ownership of the cache line while the first processor core receives the stale copy of the cache line.
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