Question: Youaredesigningawritebufferbetweenawrite-throughL1cache and a write-back L2 cache. The L2 cache write data bus is 16 B wide and can perform a write to an independent cache

Youaredesigningawritebufferbetweenawrite-throughL1cache and a write-back L2 cache. The L2 cache write data bus is 16 B wide and can perform a write to an independent cache address every four processor cycles. a. [12] <2.3> How many bytes wide should each write buffer entry be? b. [15] <2.3> What speedup could be expected in the steady state by using a merging write buffer instead of a nonmerging buffer when zeroing memory by the execution of 64-bit stores if all other instructions could be issued in parallel with the stores and the blocks are present in the L2 cache? c. [15] <2.3> What would the effect of possible L1 misses be on the number of required write buffer entries for systems with blocking and nonblocking caches?

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