Shared two level cache including apparatus for maintaining stora

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364DIG1, 36424341, 36424345, 364261, 36422282, 36496434, 364964341, 364964343, G06F 1300, G06F 1208

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052768481

ABSTRACT:
A multilevel cache buffer for a multiprocessor system in which each processor has a level one cache storage unit which interfaces with a level two cache unit and main storage unit shared by all processors. The multiprocessors share the level two cache according to a priority algorithm. When data in the level two cache is updated, corresponding data in level one caches is invalidated until it is updated.

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