Practice Mapping Functions (4.5.3) - Direct-mapped Caches: Misses, Writes and Performance

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6 sample questions

Question 1.
What is the primary difference between SRAM and DRAM?
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Consider speed and cost.
Question 2.
Define a cache hit.
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Think about where the data is stored.
3Question 3.
What does a cache hit signify?
- Data is in cache
- Data is in main memory
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Think about the location of the data.
4Question 4.
True or False: Direct mapping allows one main memory block to map to multiple cache lines.
- True
- False
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Consider the definition of direct mapping.
Question 5.
Design a simple direct-mapped cache system with 4 cache lines and explain how main memory blocks map to it.
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Calculate the line number for each block using the mapping function.
Question 6.
Analyze the cost and performance implications of increasing cache size in a memory hierarchy and explain your reasoning.
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Consider both performance and cost factors.

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