a write through cache coherency policy, will either of the above organizations make a difference in the amount of power used to do one write through operation (specifically above this cache layer, in the upper level memory structures to maintain coherency.
A cache is organized as a 4 way set associative cache
Each set's cache line consists of 4 words (meaning there are 16 bytes per line, for each set of the cache).
Each set individually has one Valid bit, and one Dirty bit, for each line.
The tag field of this cache is 8 bits wide.
The address is 32 bits wide.
If we have a write through cache coherency policy, will either of the above organizations make a difference in the amount of power used to do one write through operation (specifically above this cache layer, in the upper level memory structures to maintain coherency. The question is now saying which organization will result in a large number of operations, but when an operation is taking place would it matter what the structure was)?
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