Gce Model Questions Vol1 2017 Computer Studies Question 38
Practice objective / multiple choice question 38 from the 2017 Gce Model Questions Vol1 Computer Studies examination.
A processor has a base CPI of 1.0. Each instruction accesses memory once. The memory hierarchy is as follows: L1 cache hit rate 90% with a hit time of 1 cycle; L1 miss penalty is 10 cycles to access L2. L2 cache hit rate is 95% with a hit time of 5 cycles; L2 miss penalty is 50 cycles to access main memory. Assuming that a cache hit incurs only the hit time and a miss incurs the hit time plus the miss penalty, calculate the overall CPI of the processor.
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About This Question
This is Gce Model Questions Vol1 2017 Computer Studies Question 38. It is one of the objective questions from the 2017 Gce Model Questions Vol1 Computer Studies examination.
Difficulty level: Medium .
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