Computer system utilizing speculative read requests to cache...

Details Computer system utilizing speculative read requests to cache... Computer system utilizing speculative read requests to cache...

2006-01-31

2006-01-31

Peikari, B. James (Department: 2189)

Electrical computers and digital processing systems: memory

Storage accessing and control

Hierarchical memories

C711S124000, C711S119000, C711S204000, C711S213000

Reexamination Certificate

active

06993633

ABSTRACT:
A cache data control system and method for a computer system in which in a memory read processing, a coherent controller issues an advanced speculative read request for (speculatively) reading data from a cache data section in advance to a cache data controller, before reading a cache tag from a cache tag section and conducting cache hit check. If a cache hit has occurred, the cache data controller returns the data subjected to speculative reading as response data, at the time when the cache data controller has received a read request issued by the coherent controller.

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