Practice Static Branch Prediction (4.3.1) - Branches and Limits to Pipelining

Practice: Static Branch Prediction

Lesson 4.3.1Branches and Limits to Pipelining

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8 questions

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6 sample questions

Question 1.
What does Static Branch Prediction assume?
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Think about how a branch statement behaves in programs.
Question 2.
Can Static Branch Prediction lead to performance issues?
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Consider what happens in a pipeline when instruction fetching is affected.
3Question 3.
What does static branch prediction assume?
- Branches are always taken
- Branches are unpredictable
- Branches are never taken
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Think about how static predictions operate.
4Question 4.
Is dynamic branch prediction more accurate than static branch prediction?
- True
- False
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Consider how each method approaches prediction.
Question 5.
Analyze a situation where a program has a high number of predictable branches. Would static branch prediction suffice, or would dynamic prediction offer better performance? Justify your reasoning.
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Consider the impact of historical behavior on predictions.
Question 6.
Given a pipeline scenario where the first instruction is a branch that is predicted statically, how would you describe the potential impact if the prediction is incorrect in a deep pipeline?
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Reflect on the mechanics of branch mispredictions in relation to pipeline depth.

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