For the next three problems, we will consider the addition of an L$2$ cache to P$1$ to presumably make up

for its limited L$1$ cache capacity. Assume main memory access takes $70ns$ and memory accesses are

$36\%$ of all instructions.

The data for L$1$ cache is as follows:

The $L2$ miss rate indicated is its local miss rate.

L$2$ Size: $1MB$

L$2$ Miss Rate: $95\%$

L$2$ Hit Time: $5\mathrm{.}62ns$

What is the AMAT for P$1$ with the addition of an L$2$ cache? Is the AMAT better or worse with the L$2$

cache?