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Hi, I wrote a kernel module and insert it once system(a router with embedded linux) boot up. I use smart bit to test the LAN to WAN performance, say only ...
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  1. #1
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    Kernel Module affect performance


    Hi,

    I wrote a kernel module and insert it once system(a router with embedded linux) boot up. I use smart bit to test the LAN to WAN performance, say only 130Mbps, then I remove and insert again, the performance become 150Mbps. Why is this happening?
    Is it related to memory?
    Any tool to know how much memory is used by a specific kernel module?

    Any comments are welcome.

    Thank you.

  2. #2
    Linux Guru Rubberman's Avatar
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    Without more extensive and specific system information, it is impossible to speculate on the reasons why this may be happening.
    Sometimes, real fast is almost as good as real time.
    Just remember, Semper Gumbi - always be flexible!

  3. #3
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    Thanks Rubberman.
    But i just found out that, if I let the system boot up and stay for 30 minutes, then it has no difference.
    I think some background process is running during system boot up.
    or after certain of time, linux will "clean up" memory? Not sure. just a wide guess.

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