Practice Summary Of Key Concepts (8.9) - Performance Metrics for Cortex-A Architectures
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Summary of Key Concepts

Practice - Summary of Key Concepts

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What does CPI stand for?

💡 Hint: Think about the time it takes to execute each instruction.

Question 2 Easy

True or False: A higher clock speed always results in better performance.

💡 Hint: Consider the trade-offs involved.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the main factor indicating efficient performance in CPU architecture?

Clock Speed
Memory Size
Heat Generation

💡 Hint: Think about how processors process information.

Question 2

True or False: Branch prediction is a microarchitecture feature aimed at reducing pipeline stalls.

True
False

💡 Hint: Consider how processing order affects speed.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

You are comparing two processors, one with a clock speed of 2.5 GHz and a CPI of 1.5, and another with a clock speed of 3.0 GHz and a CPI of 2.0. Calculate the Execution Time for each for an instruction count of 1000. Which processor is more efficient?

💡 Hint: Focus on calculating each execution time and comparing the results.

Challenge 2 Hard

Considering the advantages of out-of-order execution, reason how a series of heavy multimedia tasks would impact performance on a Cortex-A processor designed with this feature.

💡 Hint: Think about how the processor can rearrange tasks to use resources effectively.

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Reference links

Supplementary resources to enhance your learning experience.