Architectures and Processors forum How to disable the branch prediction on armv8

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How to disable the branch prediction on armv8

Rifakst over 5 years ago

Hello,

I am working with ARMV8 Cortex A72 architecture,
i want to know can i turn off branch prediction?
and how can i do it?

best regards,

Top replies

vstehle over 5 years ago +2

Hi Rifakst , The CPU Auxiliary Control Register (CPUACTLR_EL1) of the Cortex-A72 provides some level of control over the branch prediction: Bit 34 disables static branch predictor. Bit 33 d isables...