Question: Assume that we have a machine that with perfect cache behaves as given in table below. Instruction Type Frequency CPI ALU 43% 1 Loads 21%

Assume that we have a machine that with perfect cache behaves as given in table below.

Instruction Type	Frequency	CPI
ALU	43%	1
Loads	21%	2
Stores	12%	2
Branches	24%	2

a) What is the average CPI for this machine?

b) With a cache, we have measured that ALU instructions have a miss rate of 5%, data references have a miss rate of 10%, branches have a miss rate of 15%, and the miss penalty is 40 cycles. Find the average CPI for the non-ideal cache machine.

c) Determine how much faster the machine is with no cache misses versus with cache misses.

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