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3 cards from this section. Quick, good the night before a test.
What is the main function of Level 1 cache?
Consider what cache is closest to the CPU.
Explain what happens during a cache miss.
Think about the flow of data and what occurs when data is not in cache.
What is the primary purpose of multi-level caches?
Think about how caches improve the flow of data.
True or False: Out-of-order execution can improve performance by allowing dependent instructions to run simultaneously.
Recollect how dependencies influence execution flow.
If a CPU has a 3% miss rate on L1 and a 0.1% on L2, with a main memory access latency of 200 nanoseconds, calculate the effective CPI assuming L1 takes 1 cycle to fetch data.
Convert all timings to cycles using the clock rate.
Design a comparison of two different cache architectures and analyze their performance regarding CPI reduction.
Use empirical data and assumptions made during lectures.
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