Adapted from $5\mathrm{.}19\mathrm{.}7$ Assume for this problem that there are $8$ bytes per word.

Consider the following program and cache behaviors.

Data Reads per

$1000$ Instructions

Data Writes per

$1000$ Instructions

Instruction Cache

Miss Rate

Data Cache

Miss Rate

Block Size

$($bytes$)$

$2501000\mathrm{.}30\%2\%64$

$($a$)$ The solution is visible. Rework the problem for a CPI of $1.$

$($b$)$ The answer is $0\mathrm{.}0672$ bytes$/$cycle$.$ Show how this is derived.