Practice - Effective CPI with L2 Cache
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Practice Questions
Test your understanding with targeted questions
Define what L1 cache is.
💡 Hint: Think about the cache that is closest to the CPU.
What does miss rate refer to?
💡 Hint: Consider how often a requested data piece is not found in cache.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the primary function of L2 cache?
💡 Hint: Think about the relationship between the two cache types.
A higher miss rate generally leads to what consequence?
💡 Hint: Recall how miss rates correlate to memory access.
1 more question available
Challenge Problems
Push your limits with advanced challenges
A system has an L1 cache with a 2% miss rate and a penalty of 50 cycles, along with an L2 cache miss rate of 1% with a penalty of 10 cycles. Calculate the effective CPI given that the base CPI is 1.
💡 Hint: Apply the miss rates and penalties for both caches while starting with base CPI.
Given a CPU base CPI of 1.3 with a main memory access time of 150 nanoseconds and a clock cycle of 0.5 nanoseconds, calculate the miss penalty if the CPU accesses the main memory three times due to cache misses.
💡 Hint: Find individual penalties before summing to get the overall effective CPI.
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