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    SubjectRe: big picture UDP/IP performance question re 2.6.18 -> 2.6.32
    At 08:44 AM 10/1/2011 +0200, Eric Dumazet wrote:
    >In my experience, I have the exact opposite :
    >performance greatly improved in recent
    >kernels. Unless you compile your kernel to include
    >new features that might reduce performance
    >(namespaces, cgroup, ...)

    RH has both of the above turned on in the
    2.6.32-71.29.1.el6.x86_64 kernel tested.

    If these are big negatives to network
    performance, could you list what should
    specifically turned off to maximize
    results? Also a recommendation for
    the best recent kernel for another
    benchmark would be helpful.

    Probably can't convince anyone to deploy a
    kernel without commercial support, but if
    an alternate compile fixes performance it
    might be possible to convince RH to support
    the alternative build.



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