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

7.6 - Cache Coherence and Consistency

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Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is cache coherence?

💡 Hint: Think about what happens when one core updates shared data.

Question 2 Easy

What does MESI stand for?

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

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the primary purpose of cache coherence protocols?

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

💡 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

💡 Hint: Recall the full acronym of MESI.

2 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

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?

💡 Hint: Consider how communication happens between caches.

Challenge 2 Hard

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

💡 Hint: Think about improving notification processes for updates.

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Reference links

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