Hi,
I want to apply BDI compression on the L2 cache. So, I changed the config
file for the caches (gem5/configs/common/Caches.py) like following:
class L1Cache(Cache):
tags = BaseSetAssoc()
compressor = NULL
class L2Cache(Cache):
tags = CompressedTags()
compressor = BDI()
After that, I got the results for some SPEC benchmarks (I used a
configuration like BDI paper) to compare the L2 miss rate between this
compression and baseline (without applying BDI and CompressedTags).
But, miss rate increases a little for some benchmarks (like mcf and bzip).
Why BDI has higher L2 miss rate? I cannot make sense of it.
Many thanks for any help!
Best,
Pooneh
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