METHOD FOR RUNNING CACHE INVALIDATION IN COMPUTER SYSTEM
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United States of America Patent
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Issued Date -
Sep 24, 2015
app pub date -
Apr 24, 2014
filing date -
Mar 20, 2014
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Provided is a method for running cache invalidation in a computer system including: checking whether or not the cache invalidation is in a range mode when the cache invalidation is started; resetting an internal count associated with the invalidation if the cache invalidation is in the range mode; accessing a cache entry; checking whether or not a tag is ‘hit’ as a result of the accessing to the cache entry; checking whether or not a state of the cache is dirty if the tag is ‘hit’; performing write operation on the memory and clearing the cache entry if the state of the cache is dirty; clearing the cache entry if the state of the cache is not dirty; incrementing the internal count by 1 if the tag is not ‘hit’ or if the cache entry is cleared; and ending the cache invalidation if the internal count exceeds a predetermined offset.
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