Practice Impact on Performance - 4.2.3 | 4. Branches and Limits to Pipelining | Computer Architecture
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is a control hazard?

πŸ’‘ Hint: Think about waiting times in decision-making.

Question 2

Easy

What can cause a branch decision delay?

πŸ’‘ Hint: Consider situations where a choice has to be made.

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 a control hazard?

  • A dependency between data
  • A situation that delays instruction fetching
  • An execution error

πŸ’‘ Hint: It has to do with branches, not data.

Question 2

True or False: Control hazards can be reduced by increasing a processor's pipeline depth.

  • True
  • False

πŸ’‘ Hint: Consider the relationship between depth and waiting times.

Solve 2 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Consider a system with a 10-stage pipeline experiencing a branch every 4 cycles. Calculate the expected delay due to control hazards, assuming each delay causes a stall of 1 cycle.

πŸ’‘ Hint: Break it down into how often branches happen relative to the number of stages.

Question 2

Evaluate how dynamic branch prediction could help mitigate the impact of control hazards in a high-frequency trading application.

πŸ’‘ Hint: Think about how tracking history informs future decisions.

Challenge and get performance evaluation