Practice Branch Misprediction - 4.4.1 | 4. Branches and Limits to Pipelining | Computer Architecture
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4.4.1 - Branch Misprediction

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is branch misprediction?

💡 Hint: Think about what happens when a processor makes the wrong guess.

Question 2

Easy

What is the penalty of a misprediction?

💡 Hint: Consider what needs to happen in the pipeline after a wrong prediction.

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 occurs when a branch is mispredicted?

  • The processor proceeds without change
  • The pipeline is flushed
  • No impact on performance

💡 Hint: Consider what happens to instructions in the pipeline.

Question 2

True or False: A branch misprediction can lead to significant delays in a processor's operation.

  • True
  • False

💡 Hint: Think about how instructions are executed in a pipeline.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Consider a processor that mispredicts a branch in a highly iterative loop. Analyze how this could affect the overall efficiency of a program running on this processor.

💡 Hint: Think about how many cycles might be wasted in an iterative process.

Question 2

Design a brief experimental setup to compare the effects of static and dynamic branch prediction on pipelined performance. What metrics would you consider?

💡 Hint: Consider how branch behavior might influence the effectiveness of each prediction strategy.

Challenge and get performance evaluation