Practice Cache Hierarchies - 7.1.1 | 7. Multi-level Caches | Computer Organisation and Architecture - Vol 3
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7.1.1 - Cache Hierarchies

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the main purpose of a cache in a CPU?

💡 Hint: Think about why computers often have a memory component close to the CPU.

Question 2

Easy

Define L1 cache in one sentence.

💡 Hint: Remember its purpose of speed in memory access.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the main function of L1 cache?

  • To store large datasets
  • To provide quick access to frequently used instructions
  • To replace main memory

💡 Hint: Consider which cache level is closest to the CPU.

Question 2

True or False: The L1 cache is larger and slower than the L2 cache.

  • True
  • False

💡 Hint: Remember the size and access speed comparisons.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A CPU accesses main memory at 4 GHz with a base CPI of 1. If it misses L1 at a rate of 2% and the main memory access time is 100 ns, calculate the effective CPI. What performance ratio can be anticipated after adding a L2 cache that mitigates the miss penalty to 20 cycles?

💡 Hint: Keep the formulas handy.

Question 2

Compare the performance metrics of a system with only L1 Cache and one with both L1 and L2 Cache. What does the analysis reveal about cache effectiveness?

💡 Hint: Think about the interaction between L1 and L2 in your calculations.

Challenge and get performance evaluation