Date: | Wed, 12 Apr 2006 09:06:28 -0500 (CDT) |
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From: | Mike Marty <mikem@xxxxxxxxxxx> |
Subject: | Re: [Gems-users] Questions about MOESI_CMP_directory |
> We have seen that the PerfectCacheMemory in the L2 > acts as a directory cache and avoids to store the > blocks in L2 that are in a L1. However since it's > perfect cache it does not seem to be designed to be > implemented in real systems. Does it? > Is it suposed to be fully associative? > No, it approximates something like L1 shadow tags (or a simpler structure). The L2 is non-inclusive, however the L2 needs full knowledge of the L1 sharers. It is not fully associative. --Mike |
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