Hi Malek,
Thank you for your explanation. I still have a question. As you said,
[NetDest (4) 0 1 - 0 0 - 0 - 0 - ]
In this case the tag is present only in the second L1Cache (L1Cache1)
Why the tag is only in L1cache? Based on the MESI protocol (inclusive cache
hierarchy), a block in L1 cache should also be in the L2. Is it correct?
Thanks for your help.
Best,
Yingying
Date: Tue, 16 Oct 2012 18:09:16 -0400
From: Malek Musleh <malek.mus...@gmail.com>
To: gem5 users mailing list <gem5-users@gem5.org>
Subject: Re: [gem5-users] Questions about DataBlock in Ruby
Message-ID:
<capoxfjwy7zdhtz0d67hdm2hbrfxrymxyzoi+uhwhyggmbqw...@mail.gmail.com>
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Hi Yingying,
NetDest indicates in which of the Memory Caches the address is present
in the protocols MachineType. In the case for MESI there are 4:
(L1Cache, L2Cache, Directory, DMA).
[NetDest (4) 0 1 - 0 0 - 0 - 0 - ]
In this case the tag is present only in the second L1Cache (L1Cache1)
[NetDest (4) 0 0 0 0 - 1 0 - 0 - 0 - ]
In this case the tag is present only in the first L2Cache (L2Cache0)
The << routine for NetDest prints the set in the order of L1Caches -
L2Cache - Directory - DMA.
In both your simulations, you did not change the number of directories
or DMA Caches.
Malek
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