For a processor with primary and secondary caches, an instruction cache miss rate of 1%, a data cache miss rate of 5%, a instruction mix of 40% data accesses, a primary to secondary cache miss penalty of 10 cycles and a secondary cache to main memory miss penalty of 200 cycles and a secondary miss rate of 0.2%, what will be the contribution to total CPI from the cache misses (in decimal)

The answer is "0.306".

Explanation:

The Primary to Secondary Memory Instruction miss cycle

Data miss cycles  

The Secondary to main Memory Instruction miss cycle

Data miss cycles

Total memory stall cycle

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