What are the effects of branch prediction failure in CPUs?
Branch prediction failure can lead to performance degradation, as the CPU may need to discard incorrect speculative executions.
How does this impact overall system performance?
It can significantly slow down processing, as the CPU wastes cycles on incorrect paths, leading to increased latency.
Are there specific scenarios where this is more pronounced?
Yes, in applications with complex branching or unpredictable control flow, such as gaming or data processing tasks.
What techniques are used to mitigate these failures?
Techniques include improving branch prediction algorithms, using more sophisticated predictors, and optimizing code to reduce branching.
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