How does branch prediction enhance the efficiency of instruction pipelines?

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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How does branch prediction enhance the efficiency of instruction pipelines?

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Step 1: Introduction:

Branch prediction is a crucial technique in computer architecture that aims to improve the efficiency of instruction pipelining by mitigating the negative effects of conditional branch instructions. These branches can disrupt the smooth flow of instructions in a pipeline, leading to pipeline stalls and reduced performance. Branch prediction techniques anticipate whether a branch will be taken or not, allowing the pipeline to continue fetching and executing instructions speculatively. This significantly enhances the overall efficiency of the instruction pipeline.

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