What is the history of branch prediction?

Can you tell me about the history of branch prediction?

Sure! Branch prediction has its roots in the early days of computer architecture, evolving significantly since the 1960s.

What were the first techniques used for branch prediction?

The earliest techniques included static prediction, where the compiler would decide the likely path, and simple heuristics.

How did dynamic branch prediction change the game?

Dynamic branch prediction introduced hardware-based techniques that adapt to program behavior, greatly improving performance.

What are some modern branch prediction methods?

Modern methods include tournament predictors and neural network-based predictors, which offer higher accuracy.

Why is branch prediction important in modern CPUs?

It's crucial for improving instruction pipeline efficiency, reducing stalls, and enhancing overall CPU performance.