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2 cards from this section. Quick, good the night before a test.
What is the primary function of a cache?
Think about the role of caches in reducing access times.
What does L1 cache stand for?
Consider how caches are categorized by their proximity to the CPU.
What is the purpose of a Level 1 (L1) cache?
Think about how L1 caches interact with the CPU.
True or False: L2 cache is generally smaller and faster than L1 cache.
Review the functions and sizes of different cache levels.
Given a processor with a clock rate of 4 GHz and an L1 cache miss rate of 2%, calculate the total effective CPI for a workload with 100,000 instructions when invoking an L2 cache that reduces the L1 miss penalty from 400 cycles to 20 cycles.
Calculate the contributions from L1 misses and compare with the reduced miss penalty from L2.
You are designing a new CPU architecture with three levels of cache. Which specific features would you prioritize for each cache level to ensure optimal performance, and how would you justify your design decisions?
Consider user expectations and scenarios where faster processing is essential.
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