Practice Cache Coherence and Consistency - 7.6 | 7. Caches | Computer Architecture
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7.6 - Cache Coherence and Consistency

Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is cache coherence?

πŸ’‘ Hint: Think about what happens when one core updates shared data.

Question 2

Easy

What does MESI stand for?

πŸ’‘ Hint: It’s an acronym related to cache protocols.

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 primary purpose of cache coherence protocols?

  • To increase CPU speed
  • To reduce memory traffic
  • To maintain data consistency

πŸ’‘ Hint: Think about why multiple caches need to agree.

Question 2

True or False: The MESI protocol only includes the Modified and Shared states.

  • True
  • False

πŸ’‘ Hint: Recall the full acronym of MESI.

Solve 2 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Analyzing a multi-core system, if Core A updates a cache line to Modified while Core B has it as Shared, what mechanisms ensure Core B receives the updated value, and how does this impact performance?

πŸ’‘ Hint: Consider how communication happens between caches.

Question 2

Propose enhancements to the MESI protocol that could further reduce the latency in cache coherence mechanisms.

πŸ’‘ Hint: Think about improving notification processes for updates.

Challenge and get performance evaluation