Describe the challenges of branch prediction in pipelined processors. How do techniques like branch target prediction and branch outcome prediction improve performance?
Describe the challenges of branch prediction in pipelined processors. How do techniques like branch target prediction and branch outcome prediction improve performance?
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
Section: Chapter Questions
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Describe the challenges of branch prediction in pipelined processors. How do techniques like branch target prediction and branch outcome prediction improve performance?
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Step 1: Introduction:
In pipelined computers, branch prediction is a key component in optimizing instruction execution. Pipelining enables the simultaneous execution of several instructions, but because branches are conditional in nature, they can present difficulties and can cause the pipeline to halt or execute instructions incorrectly. The following are some difficulties and ways that methods like branch target prediction and branch result prediction might aid in performance improvement:
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