hi all, i see the M5's cache replace policy of LRU, it seems that it will always choose from the tail of the LRU list and if it's valid block then refresh the relevant stats parameters? but i have a doubt that most modern systems will consider the invalid blocks when looking for blocks for allocating. if there're no invalid blocks then go to the LRU list and choose from the tail. Is M5 violating this mechanism? or I miss something?
Thanks, Sheng
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