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Aarch32 app performance on ARMv8a device

Sreenath P V

Hi ,

I am running aarch32 app in ARMv8a( cortex-a57 ) device.  The performance reports ( using gettimeofday() utility ), showing  large spikes on random calls. But the same app on ARMv7a( cortex-a15 ) device is quite stable.

Will the aarch32 library and aarch64 OS switching effect the performance ?. Thanks in advance.

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  • +1
    Will the aarch32 library and aarch64 OS switching effect the performance?

    No, there really shouldn't be any issues here - especially not spikes. Are you sure the platform DVFS isn't messing with your timings due to changing CPU or bus frequencies?

    Cheers,
    Pete

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  • +1
    Will the aarch32 library and aarch64 OS switching effect the performance?

    No, there really shouldn't be any issues here - especially not spikes. Are you sure the platform DVFS isn't messing with your timings due to changing CPU or bus frequencies?

    Cheers,
    Pete

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