REDUCING WRITE-BACKS TO MEMORY BY CONTROLLING THE AGE OF CACHE LINES IN LOWER LEVEL CACHE

摘要

A method and apparatus for reducing write-back to memory are disclosed herein. The method includes determining whether a read / write request entering a lower level cache is a cache line containing modified data, and in response to determining that the read / write request is not a cache line containing modified data , And manipulating the age information of the cache line to reduce the number of late entries to memory.