What are the main challenges of branch prediction in CPUs?
The main challenges include handling mispredictions, increasing complexity, and balancing accuracy with performance.
How do mispredictions affect CPU performance?
Mispredictions can lead to pipeline stalls, wasting cycles and reducing overall efficiency.
What techniques are used to improve branch prediction?
Techniques include dynamic prediction, using history tables, and machine learning approaches to enhance accuracy.
Are there any limitations to these techniques?
Yes, limitations include increased hardware complexity, power consumption, and diminishing returns on accuracy improvements.
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