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MCPS analysis for ARM9,ARM7 and cortex-A8

Praveen Kumar
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  • Arm Employee Badge
    Note: This was originally posted on 21st October 2012 at http://forums.arm.com

    You don't mention what the platforms are, are much about how the tests were run.
    For example, if you're using the models shipped with RVDS these are NOT cycle accurate. So any figures for the ARM11/Cortex-A8 you get will be misleading at best, meaningless at worst.
    How are you setting up memory management?  The more advanced the processor the bigger the impact of not (or incorrectly) setting up memory management. With caches, branch prediction, etc... set up correctly, they might conceivably be worse than the ARM9.
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  • Arm Employee Badge
    Note: This was originally posted on 21st October 2012 at http://forums.arm.com

    You don't mention what the platforms are, are much about how the tests were run.
    For example, if you're using the models shipped with RVDS these are NOT cycle accurate. So any figures for the ARM11/Cortex-A8 you get will be misleading at best, meaningless at worst.
    How are you setting up memory management?  The more advanced the processor the bigger the impact of not (or incorrectly) setting up memory management. With caches, branch prediction, etc... set up correctly, they might conceivably be worse than the ARM9.
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