Question

What is an advantage of dynamic branch prediction methods, such as history tables, over static branch prediction?

Answer 1

An advantage of dynamic branch prediction methods, such as history tables, over static branch prediction is Improved branch prediction accuracy (better than chance).

The forecast made by the technology involved in the dynamic branch prediction technique is dynamic rather than fixed. Compared to static techniques, this method provides higher accuracy. In this scheme, a prediction is made for the branch instruction currently in the pipeline.

Dynamic branch prediction produces predictions based on previous historical situations by looking at history tables, as opposed to static branch prediction, which makes definite predictions of a branch to be either taken or not taken. That is why dynamic branch prediction method is use for better result.

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