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NEON  with Cycle count register

saurabh patel
Note: This was originally posted on 15th May 2009 at http://forums.arm.com

HI,

I am having problem with performance monitor register, All cycle information with NEON instruction is unpredictable and doen't match with cycle information document.

Thanks,
Saurabh
Parents
  • Note: This was originally posted on 15th May 2009 at http://forums.arm.com

    Saurabh,

    Is this a simulator or a real hardware platform?
    Have you got the caches enabled, and are you achieving good hit rates?

    hth
    s.



    Hi,

    I measuring data on board. And I cache and d cache is enabled.
    With same hardware setup normal instruction it is giving perfect cycle information which is mentioned in document.

    Saurabh
Reply
  • Note: This was originally posted on 15th May 2009 at http://forums.arm.com

    Saurabh,

    Is this a simulator or a real hardware platform?
    Have you got the caches enabled, and are you achieving good hit rates?

    hth
    s.



    Hi,

    I measuring data on board. And I cache and d cache is enabled.
    With same hardware setup normal instruction it is giving perfect cycle information which is mentioned in document.

    Saurabh
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