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What are the steps / strategy for analyzing and improving embedded system performance

I will examine this question in the subtitles. I am confused if I ask them separately or in one question. So I will just stick to one SO question.

  • What are usually the steps to analyze and improve the performance of C applications?

  • Have these steps changed if I design for an embedded system?

  • What tools can help me?

Recently, I was tasked with improving the performance of our product on the ARM11 platform. I am relatively new to this field of embedded systems and need a guru here to help me.

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    Windows: AMD, VTune, Sleepy

    Linux: valgrind/callgrind/cachegrind

    Mac: Xcode .

Try to find a profiler for the architecture that you are actually working on.

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